./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/float_double.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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-03d7b7b [2022-02-20 16:22:40,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:22:40,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:22:40,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:22:40,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:22:40,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:22:40,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:22:40,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:22:40,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:22:40,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:22:40,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:22:40,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:22:40,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:22:40,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:22:40,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:22:40,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:22:40,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:22:40,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:22:40,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:22:40,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:22:40,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:22:40,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:22:40,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:22:40,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:22:40,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:22:40,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:22:40,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:22:40,335 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:22:40,335 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:22:40,336 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:22:40,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:22:40,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:22:40,338 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:22:40,339 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:22:40,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:22:40,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:22:40,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:22:40,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:22:40,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:22:40,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:22:40,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:22:40,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:22:40,376 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:22:40,376 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:22:40,377 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:22:40,377 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:22:40,378 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:22:40,378 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:22:40,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:22:40,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:22:40,379 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:22:40,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:22:40,380 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:22:40,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:22:40,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:22:40,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:22:40,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:22:40,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:22:40,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:22:40,381 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:22:40,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:22:40,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:22:40,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:22:40,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:22:40,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:22:40,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:22:40,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:22:40,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:22:40,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:22:40,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:22:40,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:22:40,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:22:40,384 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:22:40,384 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:22:40,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:22:40,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da879977a62fc491d3b25f9b819eca05b8eceba445d85a8f3259b3973b759af7 [2022-02-20 16:22:40,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:22:40,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:22:40,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:22:40,584 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:22:40,595 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:22:40,597 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_double.c [2022-02-20 16:22:40,650 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b974c58/9a4586016ec14e46b0b4ff4258760561/FLAGc9108d4c5 [2022-02-20 16:22:41,003 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:22:41,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/float_double.c [2022-02-20 16:22:41,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b974c58/9a4586016ec14e46b0b4ff4258760561/FLAGc9108d4c5 [2022-02-20 16:22:41,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8b974c58/9a4586016ec14e46b0b4ff4258760561 [2022-02-20 16:22:41,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:22:41,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:22:41,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:22:41,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:22:41,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:22:41,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10330736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41, skipping insertion in model container [2022-02-20 16:22:41,034 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:22:41,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:22:41,172 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] [2022-02-20 16:22:41,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:22:41,187 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:22:41,234 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] [2022-02-20 16:22:41,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:22:41,246 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:22:41,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41 WrapperNode [2022-02-20 16:22:41,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:22:41,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:22:41,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:22:41,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:22:41,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,277 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2022-02-20 16:22:41,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:22:41,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:22:41,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:22:41,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:22:41,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:22:41,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:22:41,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:22:41,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:22:41,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (1/1) ... [2022-02-20 16:22:41,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:22:41,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:22:41,331 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) [2022-02-20 16:22:41,333 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 [2022-02-20 16:22:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:22:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:22:41,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:22:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:22:41,406 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:22:41,408 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:22:41,524 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:22:41,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:22:41,531 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:22:41,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:22:41 BoogieIcfgContainer [2022-02-20 16:22:41,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:22:41,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:22:41,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:22:41,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:22:41,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:22:41" (1/3) ... [2022-02-20 16:22:41,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eeefcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:22:41, skipping insertion in model container [2022-02-20 16:22:41,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:41" (2/3) ... [2022-02-20 16:22:41,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eeefcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:22:41, skipping insertion in model container [2022-02-20 16:22:41,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:22:41" (3/3) ... [2022-02-20 16:22:41,558 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2022-02-20 16:22:41,565 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:22:41,566 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:22:41,634 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:22:41,640 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 [2022-02-20 16:22:41,640 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:22:41,654 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:22:41,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-02-20 16:22:41,658 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:22:41,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-02-20 16:22:41,659 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:22:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:22:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-02-20 16:22:41,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:22:41,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313847036] [2022-02-20 16:22:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:22:41,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:22:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:22:41,744 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:22:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:22:41,778 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:22:41,779 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:22:41,780 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:22:41,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:22:41,785 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:22:41,787 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:22:41,804 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:22:41,804 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:22:41,804 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-02-20 16:22:41,804 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-02-20 16:22:41,804 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2022-02-20 16:22:41,805 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2022-02-20 16:22:41,805 WARN L170 areAnnotationChecker]: L6-3 has no Hoare annotation [2022-02-20 16:22:41,805 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2022-02-20 16:22:41,805 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:22:41,805 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:22:41,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:22:41 BoogieIcfgContainer [2022-02-20 16:22:41,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:22:41,809 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:22:41,809 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:22:41,809 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:22:41,810 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:22:41" (3/4) ... [2022-02-20 16:22:41,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:22:41,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:22:41,813 INFO L158 Benchmark]: Toolchain (without parser) took 784.93ms. Allocated memory is still 113.2MB. Free memory was 90.1MB in the beginning and 65.9MB in the end (delta: 24.2MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-02-20 16:22:41,814 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory is still 57.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:22:41,815 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.59ms. Allocated memory is still 113.2MB. Free memory was 89.6MB in the beginning and 91.1MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 16:22:41,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.02ms. Allocated memory is still 113.2MB. Free memory was 91.1MB in the beginning and 89.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:22:41,816 INFO L158 Benchmark]: Boogie Preprocessor took 20.04ms. Allocated memory is still 113.2MB. Free memory was 89.9MB in the beginning and 89.2MB in the end (delta: 663.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:22:41,819 INFO L158 Benchmark]: RCFGBuilder took 246.80ms. Allocated memory is still 113.2MB. Free memory was 89.0MB in the beginning and 79.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 16:22:41,820 INFO L158 Benchmark]: TraceAbstraction took 258.90ms. Allocated memory is still 113.2MB. Free memory was 79.9MB in the beginning and 66.2MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:22:41,820 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 113.2MB. Free memory is still 66.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:22:41,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory is still 57.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.59ms. Allocated memory is still 113.2MB. Free memory was 89.6MB in the beginning and 91.1MB in the end (delta: -1.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.02ms. Allocated memory is still 113.2MB. Free memory was 91.1MB in the beginning and 89.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.04ms. Allocated memory is still 113.2MB. Free memory was 89.9MB in the beginning and 89.2MB in the end (delta: 663.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 246.80ms. Allocated memory is still 113.2MB. Free memory was 89.0MB in the beginning and 79.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 258.90ms. Allocated memory is still 113.2MB. Free memory was 79.9MB in the beginning and 66.2MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 113.2MB. Free memory is still 66.2MB. 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: 0.2s, 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 [2022-02-20 16:22:41,867 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 -ea -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-03d7b7b [2022-02-20 16:22:43,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:22:43,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:22:43,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:22:43,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:22:43,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:22:43,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:22:43,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:22:43,634 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:22:43,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:22:43,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:22:43,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:22:43,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:22:43,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:22:43,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:22:43,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:22:43,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:22:43,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:22:43,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:22:43,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:22:43,654 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:22:43,654 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:22:43,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:22:43,656 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:22:43,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:22:43,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:22:43,661 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:22:43,662 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:22:43,663 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:22:43,663 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:22:43,664 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:22:43,664 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:22:43,665 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:22:43,666 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:22:43,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:22:43,667 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:22:43,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:22:43,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:22:43,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:22:43,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:22:43,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:22:43,670 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:22:43,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:22:43,697 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:22:43,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:22:43,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:22:43,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:22:43,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:22:43,700 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:22:43,700 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:22:43,700 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:22:43,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:22:43,701 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:22:43,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:22:43,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:22:43,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:22:43,702 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:22:43,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:22:43,702 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:22:43,702 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:22:43,702 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:22:43,702 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:22:43,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:22:43,703 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:22:43,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:22:43,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:22:43,703 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:22:43,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:22:43,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:22:43,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:22:43,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:22:43,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:22:43,704 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:22:43,704 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:22:43,704 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:22:43,705 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:22:43,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:22:43,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:22:43,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da879977a62fc491d3b25f9b819eca05b8eceba445d85a8f3259b3973b759af7 [2022-02-20 16:22:43,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:22:43,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:22:43,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:22:43,988 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:22:43,988 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:22:43,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_double.c [2022-02-20 16:22:44,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87a19f3fb/ac7881ded80c4f56a4f1b17d965ec83b/FLAG84b541a40 [2022-02-20 16:22:44,376 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:22:44,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/float_double.c [2022-02-20 16:22:44,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87a19f3fb/ac7881ded80c4f56a4f1b17d965ec83b/FLAG84b541a40 [2022-02-20 16:22:44,393 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87a19f3fb/ac7881ded80c4f56a4f1b17d965ec83b [2022-02-20 16:22:44,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:22:44,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:22:44,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:22:44,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:22:44,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:22:44,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad37163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44, skipping insertion in model container [2022-02-20 16:22:44,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:22:44,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:22:44,532 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] [2022-02-20 16:22:44,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:22:44,559 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:22:44,602 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] [2022-02-20 16:22:44,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:22:44,620 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:22:44,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44 WrapperNode [2022-02-20 16:22:44,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:22:44,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:22:44,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:22:44,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:22:44,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,632 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,645 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-02-20 16:22:44,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:22:44,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:22:44,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:22:44,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:22:44,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:22:44,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:22:44,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:22:44,670 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:22:44,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (1/1) ... [2022-02-20 16:22:44,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:22:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:22:44,691 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) [2022-02-20 16:22:44,704 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 [2022-02-20 16:22:44,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:22:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:22:44,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:22:44,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:22:44,768 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:22:44,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:22:44,997 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:22:45,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:22:45,001 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:22:45,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:22:45 BoogieIcfgContainer [2022-02-20 16:22:45,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:22:45,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:22:45,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:22:45,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:22:45,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:22:44" (1/3) ... [2022-02-20 16:22:45,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e567e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:22:45, skipping insertion in model container [2022-02-20 16:22:45,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:22:44" (2/3) ... [2022-02-20 16:22:45,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e567e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:22:45, skipping insertion in model container [2022-02-20 16:22:45,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:22:45" (3/3) ... [2022-02-20 16:22:45,008 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2022-02-20 16:22:45,012 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:22:45,013 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:22:45,053 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:22:45,059 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 [2022-02-20 16:22:45,059 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:22:45,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:22:45,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-02-20 16:22:45,075 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:22:45,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-02-20 16:22:45,076 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:22:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:22:45,081 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-02-20 16:22:45,092 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:22:45,093 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342148452] [2022-02-20 16:22:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:22:45,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:22:45,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:22:45,096 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) [2022-02-20 16:22:45,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:22:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:22:45,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-20 16:22:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:22:45,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:22:45,411 INFO L290 TraceCheckUtils]: 0: Hoare triple {12#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(15bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {12#true} is VALID [2022-02-20 16:22:45,448 INFO L290 TraceCheckUtils]: 1: Hoare triple {12#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1, main_~y~0#1;main_~x~0#1 := ~fp.add~DOUBLE(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E20), ~to_fp~DOUBLE(currentRoundingMode, 1.0));main_~y~0#1 := ~convertDOUBLEToFLOAT(currentRoundingMode, main_~x~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if !~fp.eq~DOUBLE(main_~x~0#1, ~convertFLOATToDOUBLE(currentRoundingMode, main_~y~0#1)) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; {20#(= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))} is VALID [2022-02-20 16:22:45,449 INFO L290 TraceCheckUtils]: 2: Hoare triple {20#(= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))} assume 0bv32 == __VERIFIER_assert_~cond#1; {13#false} is VALID [2022-02-20 16:22:45,450 INFO L290 TraceCheckUtils]: 3: Hoare triple {13#false} assume !false; {13#false} is VALID [2022-02-20 16:22:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:22:45,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:22:45,451 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:22:45,452 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342148452] [2022-02-20 16:22:45,452 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1342148452] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:22:45,452 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:22:45,452 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:22:45,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177024257] [2022-02-20 16:22:45,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:22:45,457 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 [2022-02-20 16:22:45,457 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:22:45,462 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-20 16:22:45,504 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:22:45,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 16:22:45,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:22:45,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 16:22:45,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 16:22:45,520 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) [2022-02-20 16:22:45,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:22:45,697 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-02-20 16:22:45,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 16:22:45,698 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 [2022-02-20 16:22:45,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:22:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 16:22:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2022-02-20 16:22:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 16:22:45,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2022-02-20 16:22:45,703 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 12 transitions. [2022-02-20 16:22:45,751 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:22:45,755 INFO L225 Difference]: With dead ends: 13 [2022-02-20 16:22:45,755 INFO L226 Difference]: Without dead ends: 0 [2022-02-20 16:22:45,757 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 [2022-02-20 16:22:45,760 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 [2022-02-20 16:22:45,761 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] [2022-02-20 16:22:45,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-20 16:22:45,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-20 16:22:45,775 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:22:45,776 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-02-20 16:22:45,776 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-02-20 16:22:45,776 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-02-20 16:22:45,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:22:45,777 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:22:45,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:22:45,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:22:45,777 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:22:45,777 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-02-20 16:22:45,778 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-02-20 16:22:45,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:22:45,778 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:22:45,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:22:45,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:22:45,779 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:22:45,779 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:22:45,779 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:22:45,779 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) [2022-02-20 16:22:45,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-20 16:22:45,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-02-20 16:22:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:22:45,781 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-20 16:22:45,781 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) [2022-02-20 16:22:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:22:45,781 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:22:45,783 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:22:45,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:22:45,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:22:45,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-20 16:22:46,003 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-20 16:22:46,003 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-02-20 16:22:46,003 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-02-20 16:22:46,003 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-20 16:22:46,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2022-02-20 16:22:46,004 INFO L854 garLoopResultBuilder]: At program point L13(lines 8 14) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2022-02-20 16:22:46,004 INFO L858 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-02-20 16:22:46,004 INFO L858 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2022-02-20 16:22:46,004 INFO L854 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2022-02-20 16:22:46,007 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:22:46,008 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:22:46,011 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:22:46,011 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:22:46,011 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-02-20 16:22:46,011 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-02-20 16:22:46,011 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2022-02-20 16:22:46,012 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2022-02-20 16:22:46,012 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:22:46,012 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:22:46,012 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:22:46,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:22:46 BoogieIcfgContainer [2022-02-20 16:22:46,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:22:46,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:22:46,020 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:22:46,020 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:22:46,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:22:45" (3/4) ... [2022-02-20 16:22:46,022 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-02-20 16:22:46,031 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-02-20 16:22:46,032 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-02-20 16:22:46,032 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-02-20 16:22:46,032 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-02-20 16:22:46,062 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 16:22:46,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:22:46,064 INFO L158 Benchmark]: Toolchain (without parser) took 1667.40ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 41.4MB in the beginning and 38.8MB in the end (delta: 2.6MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2022-02-20 16:22:46,064 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 42.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:22:46,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.86ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 44.2MB in the end (delta: -3.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:22:46,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.68ms. Allocated memory is still 60.8MB. Free memory was 44.2MB in the beginning and 42.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:22:46,067 INFO L158 Benchmark]: Boogie Preprocessor took 22.34ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 41.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:22:46,067 INFO L158 Benchmark]: RCFGBuilder took 333.93ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 33.6MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-20 16:22:46,068 INFO L158 Benchmark]: TraceAbstraction took 1012.88ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 33.1MB in the beginning and 41.0MB in the end (delta: -7.9MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-02-20 16:22:46,068 INFO L158 Benchmark]: Witness Printer took 43.71ms. Allocated memory is still 77.6MB. Free memory was 41.0MB in the beginning and 38.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:22:46,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 42.7MB in the beginning and 42.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.86ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 44.2MB in the end (delta: -3.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.68ms. Allocated memory is still 60.8MB. Free memory was 44.2MB in the beginning and 42.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.34ms. Allocated memory is still 60.8MB. Free memory was 42.6MB in the beginning and 41.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 333.93ms. Allocated memory is still 60.8MB. Free memory was 41.5MB in the beginning and 33.6MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1012.88ms. Allocated memory was 60.8MB in the beginning and 77.6MB in the end (delta: 16.8MB). Free memory was 33.1MB in the beginning and 41.0MB in the end (delta: -7.9MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 43.71ms. Allocated memory is still 77.6MB. Free memory was 41.0MB in the beginning and 38.8MB in the end (delta: 2.2MB). 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: 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: 1.0s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, 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, 0.1s SatisfiabilityAnalysisTime, 0.3s 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! [2022-02-20 16:22:46,115 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