./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 b5237d83 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_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a --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 --- [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-b5237d8 [2022-11-21 16:20:09,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:20:09,940 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:20:09,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:20:09,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:20:09,964 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:20:09,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:20:09,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:20:09,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:20:09,970 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:20:09,971 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:20:09,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:20:09,973 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:20:09,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:20:09,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:20:09,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:20:09,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:20:09,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:20:09,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:20:09,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:20:09,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:20:09,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:20:09,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:20:09,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:20:09,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:20:09,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:20:09,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:20:09,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:20:09,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:20:09,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:20:09,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:20:09,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:20:09,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:20:09,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:20:09,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:20:09,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:20:09,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:20:10,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:20:10,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:20:10,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:20:10,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:20:10,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:20:10,026 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:20:10,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:20:10,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:20:10,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:20:10,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:20:10,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:20:10,029 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:20:10,029 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:20:10,030 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:20:10,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:20:10,030 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:20:10,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:20:10,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:20:10,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:20:10,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:20:10,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:20:10,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:20:10,032 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:20:10,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:20:10,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:20:10,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:20:10,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:20:10,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:20:10,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:20:10,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:20:10,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:20:10,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:20:10,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:20:10,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:20:10,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:20:10,035 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:20:10,036 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:20:10,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:20:10,036 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_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2022-11-21 16:20:10,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:20:10,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:20:10,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:20:10,326 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:20:10,327 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:20:10,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/float-benchs/nan_double.c [2022-11-21 16:20:13,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:20:13,647 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:20:13,648 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/sv-benchmarks/c/float-benchs/nan_double.c [2022-11-21 16:20:13,655 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/data/5ce764d35/6fa006f56c7d4c6bae6c4a18dab1d874/FLAGe0531510a [2022-11-21 16:20:13,674 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/data/5ce764d35/6fa006f56c7d4c6bae6c4a18dab1d874 [2022-11-21 16:20:13,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:20:13,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:20:13,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:20:13,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:20:13,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:20:13,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:13,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39498031 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13, skipping insertion in model container [2022-11-21 16:20:13,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:13,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:20:13,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:20:13,914 WARN L237 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_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2022-11-21 16:20:13,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:20:13,941 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:20:13,955 WARN L237 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_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2022-11-21 16:20:13,958 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:20:13,973 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:20:13,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13 WrapperNode [2022-11-21 16:20:13,974 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:20:13,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:20:13,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:20:13,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:20:13,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:13,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,008 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-11-21 16:20:14,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:20:14,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:20:14,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:20:14,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:20:14,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:20:14,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:20:14,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:20:14,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:20:14,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (1/1) ... [2022-11-21 16:20:14,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:20:14,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:20:14,077 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:20:14,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:20:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:20:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:20:14,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:20:14,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:20:14,196 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:20:14,198 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:20:14,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:20:14,332 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:20:14,332 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:20:14,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:14 BoogieIcfgContainer [2022-11-21 16:20:14,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:20:14,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:20:14,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:20:14,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:20:14,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:20:13" (1/3) ... [2022-11-21 16:20:14,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f984fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:20:14, skipping insertion in model container [2022-11-21 16:20:14,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:13" (2/3) ... [2022-11-21 16:20:14,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f984fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:20:14, skipping insertion in model container [2022-11-21 16:20:14,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:14" (3/3) ... [2022-11-21 16:20:14,355 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double.c [2022-11-21 16:20:14,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:20:14,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:20:14,454 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:20:14,463 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;@44b43491, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:20:14,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:20:14,468 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) [2022-11-21 16:20:14,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 16:20:14,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:14,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 16:20:14,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:20:14,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:14,483 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-11-21 16:20:14,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:20:14,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767567806] [2022-11-21 16:20:14,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:14,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:20:14,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:20:14,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:20:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:20:14,664 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:20:14,667 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:20:14,668 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:20:14,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:20:14,675 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 16:20:14,680 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:20:14,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:20:14 BoogieIcfgContainer [2022-11-21 16:20:14,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:20:14,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:20:14,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:20:14,705 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:20:14,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:14" (3/4) ... [2022-11-21 16:20:14,709 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:20:14,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:20:14,712 INFO L158 Benchmark]: Toolchain (without parser) took 1028.41ms. Allocated memory is still 174.1MB. Free memory was 133.3MB in the beginning and 97.7MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-21 16:20:14,713 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:20:14,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.58ms. Allocated memory is still 174.1MB. Free memory was 133.1MB in the beginning and 123.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:20:14,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.32ms. Allocated memory is still 174.1MB. Free memory was 122.9MB in the beginning and 122.0MB in the end (delta: 893.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:20:14,715 INFO L158 Benchmark]: Boogie Preprocessor took 28.82ms. Allocated memory is still 174.1MB. Free memory was 122.0MB in the beginning and 120.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:20:14,720 INFO L158 Benchmark]: RCFGBuilder took 296.68ms. Allocated memory is still 174.1MB. Free memory was 120.7MB in the beginning and 111.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:20:14,721 INFO L158 Benchmark]: TraceAbstraction took 363.07ms. Allocated memory is still 174.1MB. Free memory was 110.9MB in the beginning and 98.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:20:14,722 INFO L158 Benchmark]: Witness Printer took 4.63ms. Allocated memory is still 174.1MB. Free memory was 98.3MB in the beginning and 97.7MB in the end (delta: 599.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:20:14,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 136.3MB. Free memory is still 80.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.58ms. Allocated memory is still 174.1MB. Free memory was 133.1MB in the beginning and 123.5MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.32ms. Allocated memory is still 174.1MB. Free memory was 122.9MB in the beginning and 122.0MB in the end (delta: 893.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.82ms. Allocated memory is still 174.1MB. Free memory was 122.0MB in the beginning and 120.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 296.68ms. Allocated memory is still 174.1MB. Free memory was 120.7MB in the beginning and 111.5MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 363.07ms. Allocated memory is still 174.1MB. Free memory was 110.9MB in the beginning and 98.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.63ms. Allocated memory is still 174.1MB. Free memory was 98.3MB in the beginning and 97.7MB in the end (delta: 599.4kB). 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, 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 [2022-11-21 16:20:14,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a --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 --- [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-b5237d8 [2022-11-21 16:20:17,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:20:17,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:20:17,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:20:17,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:20:17,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:20:17,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:20:17,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:20:17,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:20:17,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:20:17,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:20:17,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:20:17,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:20:17,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:20:17,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:20:17,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:20:17,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:20:17,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:20:17,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:20:17,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:20:17,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:20:17,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:20:17,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:20:17,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:20:17,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:20:17,499 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:20:17,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:20:17,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:20:17,503 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:20:17,504 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:20:17,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:20:17,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:20:17,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:20:17,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:20:17,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:20:17,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:20:17,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:20:17,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:20:17,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:20:17,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:20:17,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:20:17,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-21 16:20:17,562 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:20:17,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:20:17,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:20:17,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:20:17,565 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:20:17,566 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:20:17,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:20:17,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:20:17,567 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:20:17,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:20:17,568 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:20:17,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:20:17,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:20:17,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:20:17,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:20:17,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:20:17,570 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:20:17,570 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:20:17,570 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:20:17,570 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:20:17,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:20:17,571 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:20:17,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:20:17,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:20:17,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:20:17,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:20:17,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:20:17,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:20:17,572 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:20:17,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:20:17,573 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:20:17,573 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:20:17,573 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:20:17,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:20:17,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:20:17,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:20:17,574 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_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2022-11-21 16:20:17,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:20:17,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:20:17,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:20:17,991 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:20:17,992 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:20:17,994 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/float-benchs/nan_double.c [2022-11-21 16:20:21,292 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:20:21,507 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:20:21,507 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/sv-benchmarks/c/float-benchs/nan_double.c [2022-11-21 16:20:21,515 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/data/556522868/2598ef5b5c394c7e999efd1851d6d86e/FLAG860acad37 [2022-11-21 16:20:21,541 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/data/556522868/2598ef5b5c394c7e999efd1851d6d86e [2022-11-21 16:20:21,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:20:21,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:20:21,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:20:21,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:20:21,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:20:21,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d5485b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21, skipping insertion in model container [2022-11-21 16:20:21,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:20:21,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:20:21,780 WARN L237 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_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2022-11-21 16:20:21,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:20:21,811 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:20:21,831 WARN L237 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_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2022-11-21 16:20:21,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:20:21,849 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:20:21,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21 WrapperNode [2022-11-21 16:20:21,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:20:21,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:20:21,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:20:21,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:20:21,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,886 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2022-11-21 16:20:21,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:20:21,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:20:21,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:20:21,888 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:20:21,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,918 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:20:21,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:20:21,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:20:21,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:20:21,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (1/1) ... [2022-11-21 16:20:21,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:20:21,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:20:21,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:20:21,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:20:22,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:20:22,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:20:22,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:20:22,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:20:22,089 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:20:22,091 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:20:22,250 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:20:22,258 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:20:22,259 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:20:22,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:22 BoogieIcfgContainer [2022-11-21 16:20:22,261 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:20:22,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:20:22,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:20:22,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:20:22,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:20:21" (1/3) ... [2022-11-21 16:20:22,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21358055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:20:22, skipping insertion in model container [2022-11-21 16:20:22,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:20:21" (2/3) ... [2022-11-21 16:20:22,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21358055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:20:22, skipping insertion in model container [2022-11-21 16:20:22,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:22" (3/3) ... [2022-11-21 16:20:22,272 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_double.c [2022-11-21 16:20:22,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:20:22,292 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:20:22,353 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:20:22,363 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;@bc0586, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:20:22,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:20:22,367 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) [2022-11-21 16:20:22,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 16:20:22,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:20:22,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-21 16:20:22,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:20:22,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:20:22,383 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-11-21 16:20:22,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:20:22,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018588947] [2022-11-21 16:20:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:20:22,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:20:22,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:20:22,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:20:22,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 16:20:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:20:22,492 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:20:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:20:22,537 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 16:20:22,539 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:20:22,540 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:20:22,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:20:22,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:20:22,784 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 16:20:22,789 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:20:22,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:20:22 BoogieIcfgContainer [2022-11-21 16:20:22,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:20:22,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:20:22,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:20:22,811 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:20:22,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:20:22" (3/4) ... [2022-11-21 16:20:22,814 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-21 16:20:22,851 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:20:22,852 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:20:22,853 INFO L158 Benchmark]: Toolchain (without parser) took 1305.72ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 39.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:20:22,853 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory was 52.4MB in the beginning and 52.4MB in the end (delta: 51.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:20:22,854 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.66ms. Allocated memory is still 75.5MB. Free memory was 51.7MB in the beginning and 41.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:20:22,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.71ms. Allocated memory is still 75.5MB. Free memory was 41.5MB in the beginning and 40.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:20:22,864 INFO L158 Benchmark]: Boogie Preprocessor took 34.16ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 39.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:20:22,864 INFO L158 Benchmark]: RCFGBuilder took 339.27ms. Allocated memory is still 75.5MB. Free memory was 38.8MB in the beginning and 53.1MB in the end (delta: -14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:20:22,865 INFO L158 Benchmark]: TraceAbstraction took 547.02ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 41.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:20:22,866 INFO L158 Benchmark]: Witness Printer took 40.90ms. Allocated memory is still 75.5MB. Free memory was 40.8MB in the beginning and 39.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:20:22,870 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 75.5MB. Free memory was 52.4MB in the beginning and 52.4MB in the end (delta: 51.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.66ms. Allocated memory is still 75.5MB. Free memory was 51.7MB in the beginning and 41.7MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.71ms. Allocated memory is still 75.5MB. Free memory was 41.5MB in the beginning and 40.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.16ms. Allocated memory is still 75.5MB. Free memory was 40.1MB in the beginning and 39.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 339.27ms. Allocated memory is still 75.5MB. Free memory was 38.8MB in the beginning and 53.1MB in the end (delta: -14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 547.02ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 41.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 40.90ms. Allocated memory is still 75.5MB. Free memory was 40.8MB in the beginning and 39.4MB in the end (delta: 1.4MB). 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: 0.4s, 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! [2022-11-21 16:20:22,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07626c95-84c8-4723-b7ea-9c8df0fb1d1d/bin/uautomizer-vX5HgA9Q3a/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