./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 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/nan_float.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:18:44,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:18:44,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:18:44,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:18:44,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:18:44,983 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:18:44,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:18:44,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:18:44,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:18:44,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:18:45,000 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:18:45,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:18:45,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:18:45,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:18:45,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:18:45,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:18:45,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:18:45,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:18:45,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:18:45,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:18:45,022 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:18:45,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:18:45,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:18:45,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:18:45,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:18:45,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:18:45,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:18:45,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:18:45,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:18:45,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:18:45,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:18:45,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:18:45,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:18:45,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:18:45,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:18:45,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:18:45,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:18:45,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:18:45,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:18:45,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:18:45,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:18:45,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:18:45,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:18:45,077 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:18:45,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:18:45,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:18:45,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:18:45,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:18:45,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:18:45,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:18:45,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:18:45,080 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:18:45,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:18:45,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:18:45,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:18:45,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:18:45,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:18:45,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:18:45,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:18:45,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:18:45,090 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:18:45,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:18:45,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:18:45,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:18:45,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:18:45,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:18:45,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:18:45,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:18:45,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:18:45,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:18:45,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:18:45,092 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:18:45,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:18:45,093 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:18:45,093 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:18:45,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:18:45,093 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2022-07-21 01:18:45,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:18:45,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:18:45,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:18:45,397 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:18:45,398 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:18:45,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2022-07-21 01:18:45,456 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e283b0e/042cf77202194881a9834110039cda5d/FLAG2a92cb47b [2022-07-21 01:18:45,905 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:18:45,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2022-07-21 01:18:45,910 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e283b0e/042cf77202194881a9834110039cda5d/FLAG2a92cb47b [2022-07-21 01:18:45,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60e283b0e/042cf77202194881a9834110039cda5d [2022-07-21 01:18:45,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:18:45,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:18:45,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:18:45,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:18:45,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:18:45,933 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:45" (1/1) ... [2022-07-21 01:18:45,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2f5d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:45, skipping insertion in model container [2022-07-21 01:18:45,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:45" (1/1) ... [2022-07-21 01:18:45,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:18:45,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:18:46,066 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2022-07-21 01:18:46,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:18:46,081 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:18:46,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2022-07-21 01:18:46,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:18:46,134 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:18:46,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46 WrapperNode [2022-07-21 01:18:46,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:18:46,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:18:46,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:18:46,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:18:46,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,155 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,167 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-07-21 01:18:46,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:18:46,168 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:18:46,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:18:46,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:18:46,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:18:46,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:18:46,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:18:46,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:18:46,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (1/1) ... [2022-07-21 01:18:46,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:18:46,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:18:46,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:18:46,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:18:46,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:18:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:18:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:18:46,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:18:46,288 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:18:46,289 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:18:46,383 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:18:46,387 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:18:46,388 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:18:46,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:46 BoogieIcfgContainer [2022-07-21 01:18:46,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:18:46,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:18:46,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:18:46,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:18:46,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:18:45" (1/3) ... [2022-07-21 01:18:46,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd7d287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:46, skipping insertion in model container [2022-07-21 01:18:46,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:46" (2/3) ... [2022-07-21 01:18:46,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd7d287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:46, skipping insertion in model container [2022-07-21 01:18:46,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:46" (3/3) ... [2022-07-21 01:18:46,397 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2022-07-21 01:18:46,410 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:18:46,410 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:18:46,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:18:46,484 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@539b6caf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@77a1f98b [2022-07-21 01:18:46,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:18:46,489 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) [2022-07-21 01:18:46,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-21 01:18:46,507 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:18:46,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-21 01:18:46,508 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:18:46,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:18:46,514 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-07-21 01:18:46,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:18:46,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195315177] [2022-07-21 01:18:46,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:18:46,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:18:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:18:46,614 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:18:46,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:18:46,652 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:18:46,661 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:18:46,663 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:18:46,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:18:46,672 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-21 01:18:46,676 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:18:46,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:18:46 BoogieIcfgContainer [2022-07-21 01:18:46,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:18:46,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:18:46,695 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:18:46,695 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:18:46,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:46" (3/4) ... [2022-07-21 01:18:46,699 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:18:46,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:18:46,700 INFO L158 Benchmark]: Toolchain (without parser) took 771.65ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 48.9MB in the end (delta: 1.2MB). Peak memory consumption was 319.2kB. Max. memory is 16.1GB. [2022-07-21 01:18:46,701 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:46,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.29ms. Allocated memory is still 67.1MB. Free memory was 49.9MB in the beginning and 52.1MB in the end (delta: -2.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-07-21 01:18:46,703 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.02ms. Allocated memory is still 67.1MB. Free memory was 52.1MB in the beginning and 50.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:46,704 INFO L158 Benchmark]: Boogie Preprocessor took 13.72ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 49.7MB in the end (delta: 852.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:18:46,708 INFO L158 Benchmark]: RCFGBuilder took 206.62ms. Allocated memory is still 67.1MB. Free memory was 49.7MB in the beginning and 41.3MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 01:18:46,709 INFO L158 Benchmark]: TraceAbstraction took 302.69ms. Allocated memory is still 67.1MB. Free memory was 40.7MB in the beginning and 49.3MB in the end (delta: -8.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-07-21 01:18:46,710 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 67.1MB. Free memory was 49.3MB in the beginning and 48.9MB in the end (delta: 353.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:46,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory is still 49.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.29ms. Allocated memory is still 67.1MB. Free memory was 49.9MB in the beginning and 52.1MB in the end (delta: -2.2MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.02ms. Allocated memory is still 67.1MB. Free memory was 52.1MB in the beginning and 50.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.72ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 49.7MB in the end (delta: 852.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 206.62ms. Allocated memory is still 67.1MB. Free memory was 49.7MB in the beginning and 41.3MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 302.69ms. Allocated memory is still 67.1MB. Free memory was 40.7MB in the beginning and 49.3MB in the end (delta: -8.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 67.1MB. Free memory was 49.3MB in the beginning and 48.9MB in the end (delta: 353.7kB). 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 [2022-07-21 01:18:46,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/nan_float.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:18:48,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:18:48,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:18:48,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:18:48,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:18:48,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:18:48,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:18:48,815 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:18:48,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:18:48,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:18:48,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:18:48,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:18:48,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:18:48,827 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:18:48,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:18:48,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:18:48,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:18:48,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:18:48,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:18:48,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:18:48,844 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:18:48,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:18:48,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:18:48,847 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:18:48,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:18:48,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:18:48,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:18:48,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:18:48,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:18:48,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:18:48,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:18:48,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:18:48,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:18:48,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:18:48,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:18:48,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:18:48,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:18:48,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:18:48,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:18:48,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:18:48,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:18:48,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:18:48,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:18:48,909 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:18:48,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:18:48,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:18:48,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:18:48,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:18:48,911 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:18:48,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:18:48,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:18:48,913 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:18:48,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:18:48,914 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:18:48,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:18:48,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:18:48,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:18:48,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:18:48,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:18:48,924 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:18:48,925 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:18:48,925 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:18:48,925 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:18:48,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:18:48,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:18:48,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:18:48,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:18:48,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:18:48,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:18:48,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:18:48,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:18:48,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:18:48,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:18:48,928 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:18:48,928 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:18:48,928 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:18:48,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:18:48,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:18:48,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:18:48,929 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2022-07-21 01:18:49,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:18:49,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:18:49,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:18:49,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:18:49,309 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:18:49,311 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2022-07-21 01:18:49,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7f67758/816a2711bb1a4a949a5e170e2813a040/FLAG40e7dcdf8 [2022-07-21 01:18:49,774 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:18:49,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2022-07-21 01:18:49,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7f67758/816a2711bb1a4a949a5e170e2813a040/FLAG40e7dcdf8 [2022-07-21 01:18:50,204 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af7f67758/816a2711bb1a4a949a5e170e2813a040 [2022-07-21 01:18:50,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:18:50,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:18:50,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:18:50,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:18:50,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:18:50,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cdc71c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50, skipping insertion in model container [2022-07-21 01:18:50,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:18:50,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:18:50,368 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2022-07-21 01:18:50,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:18:50,390 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:18:50,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2022-07-21 01:18:50,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:18:50,446 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:18:50,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50 WrapperNode [2022-07-21 01:18:50,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:18:50,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:18:50,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:18:50,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:18:50,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,487 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2022-07-21 01:18:50,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:18:50,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:18:50,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:18:50,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:18:50,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:18:50,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:18:50,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:18:50,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:18:50,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (1/1) ... [2022-07-21 01:18:50,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:18:50,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:18:50,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:18:50,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:18:50,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:18:50,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:18:50,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:18:50,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:18:50,679 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:18:50,680 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:18:50,763 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:18:50,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:18:50,768 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:18:50,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:50 BoogieIcfgContainer [2022-07-21 01:18:50,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:18:50,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:18:50,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:18:50,774 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:18:50,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:18:50" (1/3) ... [2022-07-21 01:18:50,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13468e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:50, skipping insertion in model container [2022-07-21 01:18:50,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:50" (2/3) ... [2022-07-21 01:18:50,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13468e8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:50, skipping insertion in model container [2022-07-21 01:18:50,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:50" (3/3) ... [2022-07-21 01:18:50,778 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2022-07-21 01:18:50,790 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:18:50,790 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:18:50,845 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:18:50,853 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@ff39b6f, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@59a58b14 [2022-07-21 01:18:50,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:18:50,858 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) [2022-07-21 01:18:50,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-21 01:18:50,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:18:50,867 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-21 01:18:50,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:18:50,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:18:50,872 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-07-21 01:18:50,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:18:50,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365401885] [2022-07-21 01:18:50,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:18:50,893 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:18:50,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:18:50,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:18:50,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:18:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:18:50,961 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:18:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:18:51,012 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 01:18:51,014 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:18:51,015 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:18:51,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 01:18:51,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:18:51,231 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-21 01:18:51,234 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:18:51,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:18:51 BoogieIcfgContainer [2022-07-21 01:18:51,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:18:51,253 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:18:51,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:18:51,254 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:18:51,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:50" (3/4) ... [2022-07-21 01:18:51,256 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 01:18:51,292 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 01:18:51,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:18:51,293 INFO L158 Benchmark]: Toolchain (without parser) took 1085.88ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.8MB in the beginning and 39.3MB in the end (delta: -9.4MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2022-07-21 01:18:51,294 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:51,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.76ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.6MB in the beginning and 47.0MB in the end (delta: -17.4MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-21 01:18:51,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.99ms. Allocated memory is still 62.9MB. Free memory was 47.0MB in the beginning and 45.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:18:51,297 INFO L158 Benchmark]: Boogie Preprocessor took 39.70ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 44.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:51,299 INFO L158 Benchmark]: RCFGBuilder took 241.13ms. Allocated memory is still 62.9MB. Free memory was 44.5MB in the beginning and 36.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-21 01:18:51,300 INFO L158 Benchmark]: TraceAbstraction took 480.03ms. Allocated memory is still 62.9MB. Free memory was 36.2MB in the beginning and 40.9MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:51,300 INFO L158 Benchmark]: Witness Printer took 38.87ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 39.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:18:51,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 52.4MB. Free memory is still 34.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.76ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.6MB in the beginning and 47.0MB in the end (delta: -17.4MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.99ms. Allocated memory is still 62.9MB. Free memory was 47.0MB in the beginning and 45.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.70ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 44.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.13ms. Allocated memory is still 62.9MB. Free memory was 44.5MB in the beginning and 36.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 480.03ms. Allocated memory is still 62.9MB. Free memory was 36.2MB in the beginning and 40.9MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.87ms. Allocated memory is still 62.9MB. Free memory was 40.7MB in the beginning and 39.3MB 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] 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: 0.4s, 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! [2022-07-21 01:18:51,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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