./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_float_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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_range.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 ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:42:51,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:42:51,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:42:51,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:42:51,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:42:51,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:42:51,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:42:51,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:42:51,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:42:51,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:42:51,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:42:51,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:42:51,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:42:51,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:42:51,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:42:51,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:42:51,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:42:51,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:42:51,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:42:51,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:42:51,155 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:42:51,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:42:51,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:42:51,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:42:51,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:42:51,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:42:51,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:42:51,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:42:51,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:42:51,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:42:51,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:42:51,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:42:51,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:42:51,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:42:51,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:42:51,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:42:51,172 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:42:51,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:42:51,173 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:42:51,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:42:51,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:42:51,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:42:51,177 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 13:42:51,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:42:51,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:42:51,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:42:51,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:42:51,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:42:51,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:42:51,212 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:42:51,212 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:42:51,212 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:42:51,212 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:42:51,213 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:42:51,213 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 13:42:51,213 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:42:51,213 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:42:51,213 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:42:51,214 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:42:51,214 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:42:51,214 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:42:51,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:42:51,215 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:42:51,215 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:42:51,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:42:51,215 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:42:51,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:42:51,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:42:51,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:42:51,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:42:51,216 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:42:51,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 13:42:51,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 13:42:51,217 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:42:51,217 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:42:51,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:42:51,217 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 [2022-07-19 13:42:51,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:42:51,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:42:51,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:42:51,445 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:42:51,445 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:42:51,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float_range.c [2022-07-19 13:42:51,524 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10dbd8676/636ab052581540849d2fa568dd36c98d/FLAG222909a82 [2022-07-19 13:42:51,910 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:42:51,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c [2022-07-19 13:42:51,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10dbd8676/636ab052581540849d2fa568dd36c98d/FLAG222909a82 [2022-07-19 13:42:52,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10dbd8676/636ab052581540849d2fa568dd36c98d [2022-07-19 13:42:52,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:42:52,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:42:52,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:42:52,332 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:42:52,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:42:52,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@493af6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52, skipping insertion in model container [2022-07-19 13:42:52,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:42:52,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:42:52,485 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_range.c[423,436] [2022-07-19 13:42:52,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:42:52,503 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:42:52,512 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_range.c[423,436] [2022-07-19 13:42:52,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:42:52,523 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:42:52,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52 WrapperNode [2022-07-19 13:42:52,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:42:52,525 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:42:52,525 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:42:52,525 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:42:52,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,555 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2022-07-19 13:42:52,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:42:52,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:42:52,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:42:52,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:42:52,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,565 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:42:52,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:42:52,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:42:52,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:42:52,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (1/1) ... [2022-07-19 13:42:52,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:42:52,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:42:52,606 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) [2022-07-19 13:42:52,611 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 [2022-07-19 13:42:52,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:42:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:42:52,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:42:52,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 13:42:52,681 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:42:52,683 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:42:52,757 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:42:52,762 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:42:52,762 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:42:52,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:42:52 BoogieIcfgContainer [2022-07-19 13:42:52,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:42:52,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:42:52,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:42:52,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:42:52,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:42:52" (1/3) ... [2022-07-19 13:42:52,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428547f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:42:52, skipping insertion in model container [2022-07-19 13:42:52,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:52" (2/3) ... [2022-07-19 13:42:52,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428547f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:42:52, skipping insertion in model container [2022-07-19 13:42:52,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:42:52" (3/3) ... [2022-07-19 13:42:52,772 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2022-07-19 13:42:52,787 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:42:52,787 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:42:52,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:42:52,838 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@21a05d59, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@76293cd8 [2022-07-19 13:42:52,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:42:52,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2022-07-19 13:42:52,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-19 13:42:52,848 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:42:52,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-19 13:42:52,849 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:42:52,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:42:52,854 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2022-07-19 13:42:52,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 13:42:52,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732165058] [2022-07-19 13:42:52,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:42:52,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 13:42:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:42:52,965 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 13:42:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 13:42:53,011 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 13:42:53,013 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 13:42:53,015 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:42:53,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 13:42:53,022 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 13:42:53,026 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:42:53,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:42:53 BoogieIcfgContainer [2022-07-19 13:42:53,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:42:53,050 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:42:53,050 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:42:53,051 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:42:53,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:42:52" (3/4) ... [2022-07-19 13:42:53,054 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-19 13:42:53,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:42:53,057 INFO L158 Benchmark]: Toolchain (without parser) took 728.82ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 49.4MB in the beginning and 56.9MB in the end (delta: -7.5MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-07-19 13:42:53,058 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:42:53,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 192.57ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 49.1MB in the beginning and 81.4MB in the end (delta: -32.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-07-19 13:42:53,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.94ms. Allocated memory is still 104.9MB. Free memory was 81.4MB in the beginning and 79.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:42:53,064 INFO L158 Benchmark]: Boogie Preprocessor took 14.83ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 78.9MB in the end (delta: 995.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:42:53,065 INFO L158 Benchmark]: RCFGBuilder took 191.92ms. Allocated memory is still 104.9MB. Free memory was 78.9MB in the beginning and 70.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 13:42:53,066 INFO L158 Benchmark]: TraceAbstraction took 282.73ms. Allocated memory is still 104.9MB. Free memory was 70.2MB in the beginning and 57.2MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 13:42:53,067 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 104.9MB. Free memory was 57.2MB in the beginning and 56.9MB in the end (delta: 312.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:42:53,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory was 55.6MB in the beginning and 55.5MB in the end (delta: 26.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 192.57ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 49.1MB in the beginning and 81.4MB in the end (delta: -32.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.94ms. Allocated memory is still 104.9MB. Free memory was 81.4MB in the beginning and 79.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.83ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 78.9MB in the end (delta: 995.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 191.92ms. Allocated memory is still 104.9MB. Free memory was 78.9MB in the beginning and 70.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 282.73ms. Allocated memory is still 104.9MB. Free memory was 70.2MB in the beginning and 57.2MB in the end (delta: 13.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 104.9MB. Free memory was 57.2MB in the beginning and 56.9MB in the end (delta: 312.2kB). 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 16, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] COND TRUE x >= -1e10 && x <= 1e10 [L16] 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, 11 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=11occurred 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, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-19 13:42:53,116 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_range.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 ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 13:42:55,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 13:42:55,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 13:42:55,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 13:42:55,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 13:42:55,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 13:42:55,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 13:42:55,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 13:42:55,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 13:42:55,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 13:42:55,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 13:42:55,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 13:42:55,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 13:42:55,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 13:42:55,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 13:42:55,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 13:42:55,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 13:42:55,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 13:42:55,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 13:42:55,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 13:42:55,276 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 13:42:55,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 13:42:55,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 13:42:55,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 13:42:55,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 13:42:55,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 13:42:55,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 13:42:55,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 13:42:55,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 13:42:55,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 13:42:55,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 13:42:55,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 13:42:55,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 13:42:55,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 13:42:55,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 13:42:55,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 13:42:55,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 13:42:55,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 13:42:55,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 13:42:55,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 13:42:55,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 13:42:55,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 13:42:55,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-19 13:42:55,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 13:42:55,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 13:42:55,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 13:42:55,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 13:42:55,332 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 13:42:55,332 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 13:42:55,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 13:42:55,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 13:42:55,334 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 13:42:55,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 13:42:55,335 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 13:42:55,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 13:42:55,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 13:42:55,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 13:42:55,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 13:42:55,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 13:42:55,345 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-19 13:42:55,345 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-19 13:42:55,346 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-19 13:42:55,346 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 13:42:55,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 13:42:55,346 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 13:42:55,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 13:42:55,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 13:42:55,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 13:42:55,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 13:42:55,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:42:55,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 13:42:55,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 13:42:55,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 13:42:55,348 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-19 13:42:55,348 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-19 13:42:55,349 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 13:42:55,349 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 13:42:55,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 13:42:55,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-19 13:42:55,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 [2022-07-19 13:42:55,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 13:42:55,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 13:42:55,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 13:42:55,684 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 13:42:55,685 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 13:42:55,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float_range.c [2022-07-19 13:42:55,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616c1743a/8bbb5f51238441bdaa702fa5de7d9b7d/FLAG76dda569d [2022-07-19 13:42:56,197 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 13:42:56,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c [2022-07-19 13:42:56,213 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616c1743a/8bbb5f51238441bdaa702fa5de7d9b7d/FLAG76dda569d [2022-07-19 13:42:56,615 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/616c1743a/8bbb5f51238441bdaa702fa5de7d9b7d [2022-07-19 13:42:56,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 13:42:56,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 13:42:56,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 13:42:56,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 13:42:56,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 13:42:56,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@450dd82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56, skipping insertion in model container [2022-07-19 13:42:56,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 13:42:56,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 13:42:56,773 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_range.c[423,436] [2022-07-19 13:42:56,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:42:56,805 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 13:42:56,819 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_range.c[423,436] [2022-07-19 13:42:56,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 13:42:56,857 INFO L208 MainTranslator]: Completed translation [2022-07-19 13:42:56,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56 WrapperNode [2022-07-19 13:42:56,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 13:42:56,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 13:42:56,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 13:42:56,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 13:42:56,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,908 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2022-07-19 13:42:56,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 13:42:56,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 13:42:56,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 13:42:56,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 13:42:56,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 13:42:56,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 13:42:56,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 13:42:56,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 13:42:56,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (1/1) ... [2022-07-19 13:42:56,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 13:42:56,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 13:42:56,985 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) [2022-07-19 13:42:57,012 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 [2022-07-19 13:42:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 13:42:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-19 13:42:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 13:42:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 13:42:57,100 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 13:42:57,102 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 13:42:57,311 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 13:42:57,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 13:42:57,324 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 13:42:57,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:42:57 BoogieIcfgContainer [2022-07-19 13:42:57,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 13:42:57,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 13:42:57,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 13:42:57,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 13:42:57,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 01:42:56" (1/3) ... [2022-07-19 13:42:57,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4650e8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:42:57, skipping insertion in model container [2022-07-19 13:42:57,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 01:42:56" (2/3) ... [2022-07-19 13:42:57,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4650e8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 01:42:57, skipping insertion in model container [2022-07-19 13:42:57,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:42:57" (3/3) ... [2022-07-19 13:42:57,350 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2022-07-19 13:42:57,365 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 13:42:57,365 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 13:42:57,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 13:42:57,418 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@3cee7a91, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@58fb5ce7 [2022-07-19 13:42:57,419 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 13:42:57,422 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2022-07-19 13:42:57,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-19 13:42:57,428 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 13:42:57,429 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-19 13:42:57,429 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 13:42:57,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 13:42:57,434 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2022-07-19 13:42:57,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-19 13:42:57,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093142268] [2022-07-19 13:42:57,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 13:42:57,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-19 13:42:57,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-19 13:42:57,449 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) [2022-07-19 13:42:57,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-19 13:42:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 13:42:57,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 13:42:57,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 13:42:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 13:42:57,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 13:42:57,713 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-19 13:42:57,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093142268] [2022-07-19 13:42:57,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2093142268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 13:42:57,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 13:42:57,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 13:42:57,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351101792] [2022-07-19 13:42:57,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 13:42:57,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 13:42:57,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-19 13:42:57,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 13:42:57,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:42:57,759 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-07-19 13:42:57,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 13:42:57,777 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2022-07-19 13:42:57,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 13:42:57,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-19 13:42:57,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 13:42:57,787 INFO L225 Difference]: With dead ends: 20 [2022-07-19 13:42:57,788 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 13:42:57,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 13:42:57,795 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 13:42:57,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 13:42:57,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 13:42:57,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 13:42:57,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 13:42:57,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 13:42:57,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-07-19 13:42:57,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 13:42:57,819 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 13:42:57,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-07-19 13:42:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 13:42:57,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 13:42:57,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 13:42:57,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-19 13:42:58,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-19 13:42:58,028 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 13:42:58,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 13:42:58,038 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 13:42:58,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 13:42:58,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 13:42:58,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-07-19 13:42:58,039 INFO L902 garLoopResultBuilder]: At program point L18(lines 10 19) the Hoare annotation is: true [2022-07-19 13:42:58,039 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-07-19 13:42:58,039 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2022-07-19 13:42:58,039 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-07-19 13:42:58,040 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-07-19 13:42:58,040 INFO L895 garLoopResultBuilder]: At program point L8-3(line 8) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2022-07-19 13:42:58,043 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-19 13:42:58,046 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 13:42:58,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 01:42:58 BoogieIcfgContainer [2022-07-19 13:42:58,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 13:42:58,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 13:42:58,057 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 13:42:58,058 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 13:42:58,058 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 01:42:57" (3/4) ... [2022-07-19 13:42:58,061 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 13:42:58,068 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 13:42:58,069 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 13:42:58,069 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 13:42:58,069 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 13:42:58,095 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 13:42:58,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 13:42:58,099 INFO L158 Benchmark]: Toolchain (without parser) took 1474.81ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 35.7MB in the beginning and 35.3MB in the end (delta: 391.1kB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-07-19 13:42:58,099 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.2MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:42:58,100 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.92ms. Allocated memory is still 54.5MB. Free memory was 35.6MB in the beginning and 38.5MB in the end (delta: -2.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-07-19 13:42:58,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.22ms. Allocated memory is still 54.5MB. Free memory was 38.5MB in the beginning and 37.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:42:58,101 INFO L158 Benchmark]: Boogie Preprocessor took 40.74ms. Allocated memory is still 54.5MB. Free memory was 37.0MB in the beginning and 36.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 13:42:58,101 INFO L158 Benchmark]: RCFGBuilder took 373.91ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 37.7MB in the end (delta: -1.7MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-07-19 13:42:58,102 INFO L158 Benchmark]: TraceAbstraction took 729.16ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 37.0MB in the beginning and 37.4MB in the end (delta: -403.0kB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-07-19 13:42:58,102 INFO L158 Benchmark]: Witness Printer took 38.42ms. Allocated memory is still 67.1MB. Free memory was 37.4MB in the beginning and 35.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 13:42:58,104 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 44.0MB. Free memory was 26.2MB in the beginning and 26.2MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.92ms. Allocated memory is still 54.5MB. Free memory was 35.6MB in the beginning and 38.5MB in the end (delta: -2.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.22ms. Allocated memory is still 54.5MB. Free memory was 38.5MB in the beginning and 37.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.74ms. Allocated memory is still 54.5MB. Free memory was 37.0MB in the beginning and 36.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 373.91ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 37.7MB in the end (delta: -1.7MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * TraceAbstraction took 729.16ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 37.0MB in the beginning and 37.4MB in the end (delta: -403.0kB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Witness Printer took 38.42ms. Allocated memory is still 67.1MB. Free memory was 37.4MB in the beginning and 35.3MB in the end (delta: 2.1MB). 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 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 3 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: cond == 1bv32 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-19 13:42:58,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE