./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/float_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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/float_double.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 da879977a62fc491d3b25f9b819eca05b8eceba445d85a8f3259b3973b759af7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-27 23:24:15,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-27 23:24:15,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-27 23:24:15,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-27 23:24:15,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-27 23:24:15,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-27 23:24:15,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-27 23:24:15,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-27 23:24:15,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-27 23:24:15,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-27 23:24:15,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-27 23:24:15,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-27 23:24:15,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-27 23:24:15,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-27 23:24:15,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-27 23:24:15,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-27 23:24:15,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-27 23:24:15,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-27 23:24:15,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-27 23:24:15,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-27 23:24:15,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-27 23:24:15,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-27 23:24:15,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-27 23:24:15,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-27 23:24:15,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-27 23:24:15,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-27 23:24:15,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-27 23:24:15,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-27 23:24:15,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-27 23:24:15,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-27 23:24:15,222 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-27 23:24:15,223 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-27 23:24:15,224 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-27 23:24:15,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-27 23:24:15,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-27 23:24:15,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-27 23:24:15,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-27 23:24:15,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-27 23:24:15,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-27 23:24:15,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-27 23:24:15,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-27 23:24:15,232 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-27 23:24:15,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-27 23:24:15,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-27 23:24:15,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-27 23:24:15,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-27 23:24:15,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-27 23:24:15,265 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-27 23:24:15,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-27 23:24:15,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-27 23:24:15,266 INFO L138 SettingsManager]: * Use SBE=true [2021-12-27 23:24:15,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-27 23:24:15,267 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-27 23:24:15,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-27 23:24:15,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-27 23:24:15,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-27 23:24:15,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-27 23:24:15,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-27 23:24:15,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-27 23:24:15,268 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-27 23:24:15,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-27 23:24:15,268 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-27 23:24:15,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-27 23:24:15,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-27 23:24:15,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-27 23:24:15,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-27 23:24:15,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 23:24:15,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-27 23:24:15,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-27 23:24:15,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-27 23:24:15,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-27 23:24:15,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-27 23:24:15,278 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-27 23:24:15,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-27 23:24:15,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-27 23:24:15,279 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da879977a62fc491d3b25f9b819eca05b8eceba445d85a8f3259b3973b759af7 [2021-12-27 23:24:15,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-27 23:24:15,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-27 23:24:15,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-27 23:24:15,581 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-27 23:24:15,582 INFO L275 PluginConnector]: CDTParser initialized [2021-12-27 23:24:15,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_double.c [2021-12-27 23:24:15,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1057a8d04/a8c54a2990e24e0ab32f8b247ee86adc/FLAG392132a9c [2021-12-27 23:24:16,021 INFO L306 CDTParser]: Found 1 translation units. [2021-12-27 23:24:16,021 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/float_double.c [2021-12-27 23:24:16,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1057a8d04/a8c54a2990e24e0ab32f8b247ee86adc/FLAG392132a9c [2021-12-27 23:24:16,037 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1057a8d04/a8c54a2990e24e0ab32f8b247ee86adc [2021-12-27 23:24:16,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-27 23:24:16,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-27 23:24:16,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-27 23:24:16,044 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-27 23:24:16,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-27 23:24:16,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8352fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16, skipping insertion in model container [2021-12-27 23:24:16,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-27 23:24:16,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-27 23:24:16,177 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/float_double.c[357,370] [2021-12-27 23:24:16,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 23:24:16,193 INFO L203 MainTranslator]: Completed pre-run [2021-12-27 23:24:16,202 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/float_double.c[357,370] [2021-12-27 23:24:16,205 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 23:24:16,245 INFO L208 MainTranslator]: Completed translation [2021-12-27 23:24:16,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16 WrapperNode [2021-12-27 23:24:16,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-27 23:24:16,252 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-27 23:24:16,252 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-27 23:24:16,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-27 23:24:16,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,275 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2021-12-27 23:24:16,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-27 23:24:16,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-27 23:24:16,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-27 23:24:16,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-27 23:24:16,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-27 23:24:16,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-27 23:24:16,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-27 23:24:16,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-27 23:24:16,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (1/1) ... [2021-12-27 23:24:16,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 23:24:16,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:24:16,316 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) [2021-12-27 23:24:16,338 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 [2021-12-27 23:24:16,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-27 23:24:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-27 23:24:16,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-27 23:24:16,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-27 23:24:16,387 INFO L234 CfgBuilder]: Building ICFG [2021-12-27 23:24:16,389 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-27 23:24:16,448 INFO L275 CfgBuilder]: Performing block encoding [2021-12-27 23:24:16,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-27 23:24:16,452 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-27 23:24:16,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:24:16 BoogieIcfgContainer [2021-12-27 23:24:16,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-27 23:24:16,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-27 23:24:16,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-27 23:24:16,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-27 23:24:16,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:24:16" (1/3) ... [2021-12-27 23:24:16,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53df1aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:24:16, skipping insertion in model container [2021-12-27 23:24:16,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:16" (2/3) ... [2021-12-27 23:24:16,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53df1aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:24:16, skipping insertion in model container [2021-12-27 23:24:16,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:24:16" (3/3) ... [2021-12-27 23:24:16,459 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2021-12-27 23:24:16,466 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-27 23:24:16,466 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-27 23:24:16,495 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-27 23:24:16,502 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-27 23:24:16,502 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-27 23:24:16,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 23:24:16,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-27 23:24:16,517 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:24:16,517 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-27 23:24:16,518 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:24:16,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:24:16,522 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-12-27 23:24:16,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 23:24:16,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072061828] [2021-12-27 23:24:16,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:24:16,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 23:24:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-27 23:24:16,587 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-27 23:24:16,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-27 23:24:16,606 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-27 23:24:16,607 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-27 23:24:16,608 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-27 23:24:16,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-27 23:24:16,612 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-27 23:24:16,614 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-27 23:24:16,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:24:16 BoogieIcfgContainer [2021-12-27 23:24:16,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-27 23:24:16,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-27 23:24:16,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-27 23:24:16,627 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-27 23:24:16,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:24:16" (3/4) ... [2021-12-27 23:24:16,630 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-27 23:24:16,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-27 23:24:16,631 INFO L158 Benchmark]: Toolchain (without parser) took 589.69ms. Allocated memory is still 71.3MB. Free memory was 52.5MB in the beginning and 31.2MB in the end (delta: 21.3MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-12-27 23:24:16,631 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 52.3MB in the end (delta: 55.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-27 23:24:16,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.95ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 54.7MB in the end (delta: -2.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-12-27 23:24:16,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.70ms. Allocated memory is still 71.3MB. Free memory was 54.7MB in the beginning and 53.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-27 23:24:16,632 INFO L158 Benchmark]: Boogie Preprocessor took 15.22ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 52.4MB in the end (delta: 916.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-27 23:24:16,633 INFO L158 Benchmark]: RCFGBuilder took 160.78ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 44.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-27 23:24:16,633 INFO L158 Benchmark]: TraceAbstraction took 171.92ms. Allocated memory is still 71.3MB. Free memory was 43.8MB in the beginning and 31.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-27 23:24:16,633 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 71.3MB. Free memory was 31.7MB in the beginning and 31.2MB in the end (delta: 504.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-27 23:24:16,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 52.3MB in the end (delta: 55.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.95ms. Allocated memory is still 71.3MB. Free memory was 52.2MB in the beginning and 54.7MB in the end (delta: -2.5MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.70ms. Allocated memory is still 71.3MB. Free memory was 54.7MB in the beginning and 53.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.22ms. Allocated memory is still 71.3MB. Free memory was 53.3MB in the beginning and 52.4MB in the end (delta: 916.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 160.78ms. Allocated memory is still 71.3MB. Free memory was 52.4MB in the beginning and 44.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 171.92ms. Allocated memory is still 71.3MB. Free memory was 43.8MB in the beginning and 31.7MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 71.3MB. Free memory was 31.7MB in the beginning and 31.2MB in the end (delta: 504.5kB). 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: 6]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L10] double x = 1e20 + 1.; [L11] float y = x; [L12] CALL __VERIFIER_assert(x != y) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] 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: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-27 23:24:16,663 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/float_double.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 da879977a62fc491d3b25f9b819eca05b8eceba445d85a8f3259b3973b759af7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-27 23:24:18,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-27 23:24:18,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-27 23:24:18,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-27 23:24:18,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-27 23:24:18,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-27 23:24:18,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-27 23:24:18,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-27 23:24:18,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-27 23:24:18,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-27 23:24:18,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-27 23:24:18,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-27 23:24:18,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-27 23:24:18,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-27 23:24:18,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-27 23:24:18,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-27 23:24:18,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-27 23:24:18,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-27 23:24:18,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-27 23:24:18,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-27 23:24:18,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-27 23:24:18,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-27 23:24:18,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-27 23:24:18,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-27 23:24:18,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-27 23:24:18,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-27 23:24:18,410 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-27 23:24:18,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-27 23:24:18,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-27 23:24:18,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-27 23:24:18,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-27 23:24:18,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-27 23:24:18,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-27 23:24:18,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-27 23:24:18,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-27 23:24:18,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-27 23:24:18,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-27 23:24:18,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-27 23:24:18,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-27 23:24:18,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-27 23:24:18,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-27 23:24:18,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-27 23:24:18,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-27 23:24:18,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-27 23:24:18,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-27 23:24:18,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-27 23:24:18,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-27 23:24:18,444 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-27 23:24:18,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-27 23:24:18,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-27 23:24:18,445 INFO L138 SettingsManager]: * Use SBE=true [2021-12-27 23:24:18,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-27 23:24:18,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-27 23:24:18,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-27 23:24:18,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-27 23:24:18,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-27 23:24:18,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-27 23:24:18,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-27 23:24:18,447 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-27 23:24:18,447 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-27 23:24:18,447 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-27 23:24:18,447 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-27 23:24:18,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-27 23:24:18,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-27 23:24:18,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-27 23:24:18,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-27 23:24:18,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-27 23:24:18,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-27 23:24:18,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 23:24:18,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-27 23:24:18,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-27 23:24:18,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-27 23:24:18,449 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-27 23:24:18,449 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-27 23:24:18,449 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-27 23:24:18,449 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-27 23:24:18,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-27 23:24:18,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-27 23:24:18,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da879977a62fc491d3b25f9b819eca05b8eceba445d85a8f3259b3973b759af7 [2021-12-27 23:24:18,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-27 23:24:18,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-27 23:24:18,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-27 23:24:18,733 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-27 23:24:18,734 INFO L275 PluginConnector]: CDTParser initialized [2021-12-27 23:24:18,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_double.c [2021-12-27 23:24:18,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40c8141ed/3008b80c9c4a44148611e973eab1431f/FLAG88ae94042 [2021-12-27 23:24:19,207 INFO L306 CDTParser]: Found 1 translation units. [2021-12-27 23:24:19,207 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/float_double.c [2021-12-27 23:24:19,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40c8141ed/3008b80c9c4a44148611e973eab1431f/FLAG88ae94042 [2021-12-27 23:24:19,220 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40c8141ed/3008b80c9c4a44148611e973eab1431f [2021-12-27 23:24:19,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-27 23:24:19,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-27 23:24:19,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-27 23:24:19,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-27 23:24:19,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-27 23:24:19,230 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,232 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@580504f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19, skipping insertion in model container [2021-12-27 23:24:19,232 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-27 23:24:19,245 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-27 23:24:19,325 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/float_double.c[357,370] [2021-12-27 23:24:19,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 23:24:19,340 INFO L203 MainTranslator]: Completed pre-run [2021-12-27 23:24:19,381 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/float_double.c[357,370] [2021-12-27 23:24:19,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 23:24:19,392 INFO L208 MainTranslator]: Completed translation [2021-12-27 23:24:19,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19 WrapperNode [2021-12-27 23:24:19,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-27 23:24:19,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-27 23:24:19,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-27 23:24:19,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-27 23:24:19,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,416 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2021-12-27 23:24:19,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-27 23:24:19,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-27 23:24:19,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-27 23:24:19,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-27 23:24:19,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,435 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-27 23:24:19,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-27 23:24:19,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-27 23:24:19,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-27 23:24:19,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (1/1) ... [2021-12-27 23:24:19,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 23:24:19,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 23:24:19,465 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) [2021-12-27 23:24:19,477 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 [2021-12-27 23:24:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-27 23:24:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-27 23:24:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-27 23:24:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-27 23:24:19,543 INFO L234 CfgBuilder]: Building ICFG [2021-12-27 23:24:19,544 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-27 23:24:19,741 INFO L275 CfgBuilder]: Performing block encoding [2021-12-27 23:24:19,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-27 23:24:19,746 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-27 23:24:19,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:24:19 BoogieIcfgContainer [2021-12-27 23:24:19,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-27 23:24:19,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-27 23:24:19,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-27 23:24:19,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-27 23:24:19,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:24:19" (1/3) ... [2021-12-27 23:24:19,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692548d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:24:19, skipping insertion in model container [2021-12-27 23:24:19,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:24:19" (2/3) ... [2021-12-27 23:24:19,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692548d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:24:19, skipping insertion in model container [2021-12-27 23:24:19,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:24:19" (3/3) ... [2021-12-27 23:24:19,753 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2021-12-27 23:24:19,757 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-27 23:24:19,757 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-27 23:24:19,784 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-27 23:24:19,788 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-27 23:24:19,789 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-27 23:24:19,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 23:24:19,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-27 23:24:19,806 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 23:24:19,807 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-27 23:24:19,807 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 23:24:19,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 23:24:19,819 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-12-27 23:24:19,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-27 23:24:19,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385935706] [2021-12-27 23:24:19,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 23:24:19,831 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-27 23:24:19,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-27 23:24:19,833 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) [2021-12-27 23:24:19,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-27 23:24:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 23:24:19,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-27 23:24:19,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 23:24:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-27 23:24:20,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-27 23:24:20,123 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-27 23:24:20,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385935706] [2021-12-27 23:24:20,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385935706] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 23:24:20,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 23:24:20,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 23:24:20,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172603217] [2021-12-27 23:24:20,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 23:24:20,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 23:24:20,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-27 23:24:20,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 23:24:20,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 23:24:20,170 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 23:24:20,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 23:24:20,181 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-12-27 23:24:20,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 23:24:20,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-12-27 23:24:20,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 23:24:20,187 INFO L225 Difference]: With dead ends: 13 [2021-12-27 23:24:20,188 INFO L226 Difference]: Without dead ends: 0 [2021-12-27 23:24:20,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 23:24:20,193 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 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 [2021-12-27 23:24:20,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 23:24:20,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-27 23:24:20,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-27 23:24:20,209 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) [2021-12-27 23:24:20,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-27 23:24:20,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-12-27 23:24:20,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 23:24:20,211 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-27 23:24:20,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 23:24:20,212 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-27 23:24:20,212 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-27 23:24:20,214 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-27 23:24:20,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-27 23:24:20,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-27 23:24:20,425 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-27 23:24:20,434 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-27 23:24:20,434 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-27 23:24:20,434 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-27 23:24:20,434 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-27 23:24:20,435 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2021-12-27 23:24:20,435 INFO L854 garLoopResultBuilder]: At program point L13(lines 8 14) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2021-12-27 23:24:20,435 INFO L858 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2021-12-27 23:24:20,435 INFO L858 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2021-12-27 23:24:20,435 INFO L854 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2021-12-27 23:24:20,438 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-27 23:24:20,439 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-27 23:24:20,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:24:20 BoogieIcfgContainer [2021-12-27 23:24:20,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-27 23:24:20,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-27 23:24:20,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-27 23:24:20,447 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-27 23:24:20,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:24:19" (3/4) ... [2021-12-27 23:24:20,449 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-27 23:24:20,455 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-27 23:24:20,455 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-27 23:24:20,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-27 23:24:20,456 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-27 23:24:20,477 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-27 23:24:20,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-27 23:24:20,478 INFO L158 Benchmark]: Toolchain (without parser) took 1254.18ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 40.1MB in the beginning and 55.5MB in the end (delta: -15.4MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2021-12-27 23:24:20,478 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 60.8MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-27 23:24:20,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.58ms. Allocated memory is still 60.8MB. Free memory was 39.9MB in the beginning and 44.3MB in the end (delta: -4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-27 23:24:20,479 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.41ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 42.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-27 23:24:20,479 INFO L158 Benchmark]: Boogie Preprocessor took 21.23ms. Allocated memory is still 60.8MB. Free memory was 42.8MB in the beginning and 41.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-27 23:24:20,480 INFO L158 Benchmark]: RCFGBuilder took 306.73ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 33.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-27 23:24:20,480 INFO L158 Benchmark]: TraceAbstraction took 697.52ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 33.2MB in the beginning and 39.3MB in the end (delta: -6.1MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-12-27 23:24:20,480 INFO L158 Benchmark]: Witness Printer took 30.62ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 55.5MB in the end (delta: -16.1MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-12-27 23:24:20,482 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 60.8MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.58ms. Allocated memory is still 60.8MB. Free memory was 39.9MB in the beginning and 44.3MB in the end (delta: -4.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.41ms. Allocated memory is still 60.8MB. Free memory was 44.1MB in the beginning and 42.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.23ms. Allocated memory is still 60.8MB. Free memory was 42.8MB in the beginning and 41.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 306.73ms. Allocated memory is still 60.8MB. Free memory was 41.7MB in the beginning and 33.8MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 697.52ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 33.2MB in the beginning and 39.3MB in the end (delta: -6.1MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 30.62ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 55.5MB in the end (delta: -16.1MB). Peak memory consumption was 2.6MB. 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: 6]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 4 NumberOfFragments, 6 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 4 NumberOfNonLiveVariables, 21 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: 6]: Loop Invariant Derived loop invariant: cond == 1bv32 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: cond == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-12-27 23:24:20,511 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 Result: TRUE