./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1051.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1051.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 d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:57:05,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:57:05,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:57:05,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:57:05,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:57:05,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:57:05,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:57:05,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:57:05,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:57:05,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:57:05,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:57:05,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:57:05,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:57:05,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:57:05,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:57:05,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:57:05,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:57:05,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:57:05,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:57:05,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:57:05,234 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:57:05,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:57:05,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:57:05,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:57:05,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:57:05,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:57:05,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:57:05,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:57:05,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:57:05,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:57:05,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:57:05,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:57:05,249 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:57:05,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:57:05,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:57:05,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:57:05,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:57:05,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:57:05,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:57:05,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:57:05,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:57:05,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:57:05,260 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:57:05,292 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:57:05,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:57:05,293 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:57:05,294 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:57:05,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:57:05,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:57:05,295 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:57:05,296 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:57:05,296 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:57:05,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:57:05,297 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:57:05,297 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:57:05,297 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:57:05,297 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:57:05,298 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:57:05,298 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:57:05,298 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:57:05,298 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:57:05,298 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:57:05,299 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:57:05,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:57:05,299 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:57:05,299 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:57:05,299 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:57:05,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:05,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:57:05,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:57:05,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:57:05,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:57:05,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:57:05,301 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:57:05,301 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:57:05,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:57:05,302 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 [2022-07-21 01:57:05,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:57:05,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:57:05,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:57:05,649 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:57:05,650 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:57:05,651 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2022-07-21 01:57:05,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e17d991/a63d6f3f46e04a3184a8121ec88e7d81/FLAG7a52e6cdd [2022-07-21 01:57:06,230 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:57:06,231 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2022-07-21 01:57:06,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e17d991/a63d6f3f46e04a3184a8121ec88e7d81/FLAG7a52e6cdd [2022-07-21 01:57:06,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e17d991/a63d6f3f46e04a3184a8121ec88e7d81 [2022-07-21 01:57:06,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:57:06,704 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:57:06,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:06,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:57:06,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:57:06,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:06,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e747577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06, skipping insertion in model container [2022-07-21 01:57:06,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:06,725 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:57:06,737 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:57:06,864 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-newlib/float_req_bl_1051.c[1637,1650] [2022-07-21 01:57:06,868 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:06,877 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:57:06,915 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-newlib/float_req_bl_1051.c[1637,1650] [2022-07-21 01:57:06,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:06,930 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:57:06,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06 WrapperNode [2022-07-21 01:57:06,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:06,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:06,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:57:06,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:57:06,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:06,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:06,967 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-07-21 01:57:06,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:06,971 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:57:06,971 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:57:06,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:57:06,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:06,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:06,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:06,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:07,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:07,012 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:07,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:07,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:57:07,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:57:07,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:57:07,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:57:07,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (1/1) ... [2022-07-21 01:57:07,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:07,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:57:07,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:57:07,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:57:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:57:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:57:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 01:57:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-21 01:57:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 01:57:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-21 01:57:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:57:07,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:57:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 01:57:07,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 01:57:07,220 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:57:07,221 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:57:07,515 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:57:07,520 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:57:07,520 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 01:57:07,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:07 BoogieIcfgContainer [2022-07-21 01:57:07,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:57:07,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:57:07,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:57:07,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:57:07,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:57:06" (1/3) ... [2022-07-21 01:57:07,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b2211a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:07, skipping insertion in model container [2022-07-21 01:57:07,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:06" (2/3) ... [2022-07-21 01:57:07,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b2211a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:07, skipping insertion in model container [2022-07-21 01:57:07,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:07" (3/3) ... [2022-07-21 01:57:07,529 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2022-07-21 01:57:07,544 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:57:07,544 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:57:07,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:57:07,621 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@518412a8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@720299f4 [2022-07-21 01:57:07,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:57:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:07,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 01:57:07,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:07,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:07,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:07,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:07,652 INFO L85 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2022-07-21 01:57:07,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:57:07,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196971802] [2022-07-21 01:57:07,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:07,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:57:07,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:07,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:07,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:57:07,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196971802] [2022-07-21 01:57:07,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196971802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:07,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:07,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:57:07,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31187973] [2022-07-21 01:57:07,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:07,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:57:07,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:57:07,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:57:07,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:07,831 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:07,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:07,851 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2022-07-21 01:57:07,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:57:07,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-07-21 01:57:07,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:07,860 INFO L225 Difference]: With dead ends: 50 [2022-07-21 01:57:07,861 INFO L226 Difference]: Without dead ends: 23 [2022-07-21 01:57:07,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:07,868 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:07,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:57:07,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-21 01:57:07,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-21 01:57:07,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:07,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2022-07-21 01:57:07,905 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2022-07-21 01:57:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:07,905 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2022-07-21 01:57:07,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:07,906 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-07-21 01:57:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 01:57:07,907 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:07,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:07,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:57:07,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:07,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:07,909 INFO L85 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2022-07-21 01:57:07,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:57:07,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580940769] [2022-07-21 01:57:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:57:08,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:57:08,029 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:57:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:57:08,107 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:57:08,108 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:57:08,109 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:57:08,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 01:57:08,114 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 01:57:08,117 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:57:08,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:57:08 BoogieIcfgContainer [2022-07-21 01:57:08,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:57:08,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:57:08,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:57:08,137 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:57:08,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:07" (3/4) ... [2022-07-21 01:57:08,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:57:08,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:57:08,141 INFO L158 Benchmark]: Toolchain (without parser) took 1436.60ms. Allocated memory is still 56.6MB. Free memory was 40.7MB in the beginning and 33.2MB in the end (delta: 7.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-21 01:57:08,141 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 46.1MB. Free memory was 27.9MB in the beginning and 27.9MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:08,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.75ms. Allocated memory is still 56.6MB. Free memory was 40.5MB in the beginning and 30.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-21 01:57:08,142 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.75ms. Allocated memory is still 56.6MB. Free memory was 30.0MB in the beginning and 28.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:08,143 INFO L158 Benchmark]: Boogie Preprocessor took 53.90ms. Allocated memory is still 56.6MB. Free memory was 28.2MB in the beginning and 26.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:08,143 INFO L158 Benchmark]: RCFGBuilder took 496.54ms. Allocated memory is still 56.6MB. Free memory was 26.6MB in the beginning and 29.7MB in the end (delta: -3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 01:57:08,144 INFO L158 Benchmark]: TraceAbstraction took 612.52ms. Allocated memory is still 56.6MB. Free memory was 29.3MB in the beginning and 33.4MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:08,144 INFO L158 Benchmark]: Witness Printer took 3.60ms. Allocated memory is still 56.6MB. Free memory was 33.4MB in the beginning and 33.2MB in the end (delta: 280.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:08,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 46.1MB. Free memory was 27.9MB in the beginning and 27.9MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.75ms. Allocated memory is still 56.6MB. Free memory was 40.5MB in the beginning and 30.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.75ms. Allocated memory is still 56.6MB. Free memory was 30.0MB in the beginning and 28.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.90ms. Allocated memory is still 56.6MB. Free memory was 28.2MB in the beginning and 26.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 496.54ms. Allocated memory is still 56.6MB. Free memory was 26.6MB in the beginning and 29.7MB in the end (delta: -3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 612.52ms. Allocated memory is still 56.6MB. Free memory was 29.3MB in the beginning and 33.4MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.60ms. Allocated memory is still 56.6MB. Free memory was 33.4MB in the beginning and 33.2MB in the end (delta: 280.0kB). 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: 73]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 60, overapproximation of someBinaryArithmeticFLOAToperation at line 68, overapproximation of bitwiseAnd at line 24. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L68] float x = 0.0f / 0.0f; [L69] CALL, EXPR floor_float(x) [L17] __int32_t i0, j0; [L18] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000001, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000001] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (i0) = gf_u.word [L24] ix = (i0 & 0x7fffffff) [L25] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000001, huge_floor=1000000000000000000000000000000, i=-18014398509481984, i0=-1, j0=2147483521, x=1000000000000000000000000000001] [L26] COND FALSE !(j0 < 23) VAL [\old(x)=1000000000000000000000000000001, huge_floor=1000000000000000000000000000000, i=-18014398509481984, i0=-1, j0=2147483521, x=1000000000000000000000000000001] [L46] COND FALSE !(!((ix) < 0x7f800000L)) [L49] return x; VAL [\old(x)=1000000000000000000000000000001, \result=1000000000000000000000000000001, huge_floor=1000000000000000000000000000000, i=-18014398509481984, i0=-1, j0=2147483521, x=1000000000000000000000000000001] [L69] RET, EXPR floor_float(x) [L69] float res = floor_float(x); [L72] CALL, EXPR isnan_float(res) [L60] return x != x; VAL [\old(x)=1000000000000000000000000000001, \result=0, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000001] [L72] RET, EXPR isnan_float(res) [L72] COND TRUE !isnan_float(res) [L73] reach_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000001, x=1000000000000000000000000000001] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 01:57:08,181 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-newlib/float_req_bl_1051.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 d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:57:10,068 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:57:10,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:57:10,121 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:57:10,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:57:10,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:57:10,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:57:10,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:57:10,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:57:10,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:57:10,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:57:10,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:57:10,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:57:10,141 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:57:10,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:57:10,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:57:10,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:57:10,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:57:10,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:57:10,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:57:10,158 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:57:10,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:57:10,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:57:10,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:57:10,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:57:10,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:57:10,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:57:10,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:57:10,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:57:10,172 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:57:10,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:57:10,173 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:57:10,174 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:57:10,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:57:10,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:57:10,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:57:10,177 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:57:10,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:57:10,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:57:10,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:57:10,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:57:10,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:57:10,189 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:57:10,221 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:57:10,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:57:10,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:57:10,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:57:10,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:57:10,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:57:10,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:57:10,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:57:10,224 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:57:10,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:57:10,225 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:57:10,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:57:10,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:57:10,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:57:10,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:57:10,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:57:10,227 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:57:10,227 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:57:10,227 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:57:10,227 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:57:10,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:57:10,227 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:57:10,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:57:10,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:57:10,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:57:10,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:57:10,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:10,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:57:10,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:57:10,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:57:10,229 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:57:10,229 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:57:10,230 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:57:10,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:57:10,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:57:10,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:57:10,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d76ec759ff5c4ba8ac5ab3cd461da9e97af9099f3ad7ef7f0d1dfc5d0eb9df52 [2022-07-21 01:57:10,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:57:10,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:57:10,595 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:57:10,596 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:57:10,597 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:57:10,598 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2022-07-21 01:57:10,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced9d70be/0cf24b54ca254714a1516da111d68f67/FLAGcc5c7415f [2022-07-21 01:57:11,107 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:57:11,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1051.c [2022-07-21 01:57:11,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced9d70be/0cf24b54ca254714a1516da111d68f67/FLAGcc5c7415f [2022-07-21 01:57:11,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced9d70be/0cf24b54ca254714a1516da111d68f67 [2022-07-21 01:57:11,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:57:11,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:57:11,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:11,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:57:11,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:57:11,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c22e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11, skipping insertion in model container [2022-07-21 01:57:11,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:57:11,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:57:11,352 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-newlib/float_req_bl_1051.c[1637,1650] [2022-07-21 01:57:11,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:11,415 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:57:11,440 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-newlib/float_req_bl_1051.c[1637,1650] [2022-07-21 01:57:11,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:11,458 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:57:11,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11 WrapperNode [2022-07-21 01:57:11,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:11,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:11,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:57:11,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:57:11,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,508 INFO L137 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2022-07-21 01:57:11,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:11,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:57:11,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:57:11,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:57:11,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,546 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:57:11,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:57:11,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:57:11,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:57:11,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (1/1) ... [2022-07-21 01:57:11,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:11,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:57:11,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:57:11,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:57:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:57:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:57:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 01:57:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-21 01:57:11,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 01:57:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:57:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:57:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-21 01:57:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 01:57:11,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 01:57:11,674 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:57:11,676 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:57:12,177 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:57:12,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:57:12,182 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-07-21 01:57:12,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:12 BoogieIcfgContainer [2022-07-21 01:57:12,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:57:12,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:57:12,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:57:12,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:57:12,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:57:11" (1/3) ... [2022-07-21 01:57:12,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741bc101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:12, skipping insertion in model container [2022-07-21 01:57:12,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:11" (2/3) ... [2022-07-21 01:57:12,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741bc101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:12, skipping insertion in model container [2022-07-21 01:57:12,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:12" (3/3) ... [2022-07-21 01:57:12,191 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051.c [2022-07-21 01:57:12,204 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:57:12,204 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:57:12,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:57:12,244 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4ac9db5c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@122897e4 [2022-07-21 01:57:12,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:57:12,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:12,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-21 01:57:12,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:12,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:12,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:12,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2022-07-21 01:57:12,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:12,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983979240] [2022-07-21 01:57:12,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:12,285 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:12,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:12,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:12,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:57:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:12,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 01:57:12,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:12,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:12,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:12,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:12,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983979240] [2022-07-21 01:57:12,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983979240] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:12,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:12,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:57:12,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68691920] [2022-07-21 01:57:12,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:12,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:57:12,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:12,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:57:12,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:12,438 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.625) internal successors, (39), 25 states have internal predecessors, (39), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:12,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:12,452 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2022-07-21 01:57:12,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:57:12,456 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-07-21 01:57:12,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:12,464 INFO L225 Difference]: With dead ends: 50 [2022-07-21 01:57:12,464 INFO L226 Difference]: Without dead ends: 23 [2022-07-21 01:57:12,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:12,470 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:12,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:57:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-21 01:57:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-21 01:57:12,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 22 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:12,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2022-07-21 01:57:12,497 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2022-07-21 01:57:12,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:12,497 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2022-07-21 01:57:12,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:12,498 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-07-21 01:57:12,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 01:57:12,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:12,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:12,507 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 01:57:12,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:12,700 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2022-07-21 01:57:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:12,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655534759] [2022-07-21 01:57:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:12,702 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:12,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:12,704 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:12,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 01:57:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:12,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 01:57:12,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:12,948 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:12,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:12,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655534759] [2022-07-21 01:57:12,949 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655534759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:12,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:12,949 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 01:57:12,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304233245] [2022-07-21 01:57:12,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:12,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 01:57:12,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:12,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 01:57:12,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 01:57:12,952 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:12,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:12,978 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-07-21 01:57:12,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 01:57:12,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-07-21 01:57:12,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:12,980 INFO L225 Difference]: With dead ends: 28 [2022-07-21 01:57:12,980 INFO L226 Difference]: Without dead ends: 23 [2022-07-21 01:57:12,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 01:57:12,982 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:12,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 93 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 15 Unchecked, 0.0s Time] [2022-07-21 01:57:12,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-07-21 01:57:12,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-07-21 01:57:12,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:12,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-07-21 01:57:12,987 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2022-07-21 01:57:12,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:12,987 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-07-21 01:57:12,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:12,987 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-07-21 01:57:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-21 01:57:12,988 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:12,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:13,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:13,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:13,200 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:13,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:13,201 INFO L85 PathProgramCache]: Analyzing trace with hash -64453298, now seen corresponding path program 1 times [2022-07-21 01:57:13,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:13,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963781218] [2022-07-21 01:57:13,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:13,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:13,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:13,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:13,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 01:57:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:13,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 01:57:13,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:13,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:13,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:13,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:13,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963781218] [2022-07-21 01:57:13,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963781218] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:13,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:13,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 01:57:13,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285449193] [2022-07-21 01:57:13,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:13,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 01:57:13,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:13,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 01:57:13,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 01:57:13,411 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:13,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:13,657 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-07-21 01:57:13,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 01:57:13,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-07-21 01:57:13,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:13,659 INFO L225 Difference]: With dead ends: 34 [2022-07-21 01:57:13,659 INFO L226 Difference]: Without dead ends: 18 [2022-07-21 01:57:13,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-07-21 01:57:13,661 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 25 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:13,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 56 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 01:57:13,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-07-21 01:57:13,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-07-21 01:57:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:13,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-07-21 01:57:13,667 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-07-21 01:57:13,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:13,667 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-07-21 01:57:13,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-07-21 01:57:13,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-21 01:57:13,668 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:13,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:13,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:13,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:13,881 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:13,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:13,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2022-07-21 01:57:13,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:13,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856671692] [2022-07-21 01:57:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:13,883 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:13,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:13,887 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:13,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 01:57:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:14,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-21 01:57:14,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:14,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:14,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:14,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856671692] [2022-07-21 01:57:14,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856671692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:14,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:14,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 01:57:14,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206806486] [2022-07-21 01:57:14,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:14,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 01:57:14,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:14,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 01:57:14,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 01:57:14,136 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:14,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:14,137 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-07-21 01:57:14,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 01:57:14,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2022-07-21 01:57:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:14,138 INFO L225 Difference]: With dead ends: 18 [2022-07-21 01:57:14,138 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 01:57:14,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 01:57:14,139 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:14,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2022-07-21 01:57:14,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 01:57:14,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 01:57:14,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 01:57:14,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-07-21 01:57:14,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:14,141 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 01:57:14,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:14,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 01:57:14,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 01:57:14,147 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:57:14,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:14,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:14,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 01:57:14,418 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2022-07-21 01:57:14,419 INFO L895 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2022-07-21 01:57:14,419 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 44) no Hoare annotation was computed. [2022-07-21 01:57:14,419 INFO L895 garLoopResultBuilder]: At program point L56(lines 16 57) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_floor_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2022-07-21 01:57:14,419 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2022-07-21 01:57:14,419 INFO L895 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_floor_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2022-07-21 01:57:14,419 INFO L899 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2022-07-21 01:57:14,419 INFO L902 garLoopResultBuilder]: At program point L77(lines 62 78) the Hoare annotation is: true [2022-07-21 01:57:14,419 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2022-07-21 01:57:14,419 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 41) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 34) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point L29(lines 29 33) no Hoare annotation was computed. [2022-07-21 01:57:14,420 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 49) no Hoare annotation was computed. [2022-07-21 01:57:14,421 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 50) no Hoare annotation was computed. [2022-07-21 01:57:14,421 INFO L899 garLoopResultBuilder]: For program point L51(lines 51 55) no Hoare annotation was computed. [2022-07-21 01:57:14,421 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 16 57) no Hoare annotation was computed. [2022-07-21 01:57:14,421 INFO L899 garLoopResultBuilder]: For program point L51-2(lines 51 55) no Hoare annotation was computed. [2022-07-21 01:57:14,421 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2022-07-21 01:57:14,421 INFO L899 garLoopResultBuilder]: For program point L39(lines 39 43) no Hoare annotation was computed. [2022-07-21 01:57:14,428 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-21 01:57:14,431 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:57:14,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-21 01:57:14,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:14,444 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-21 01:57:14,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:14,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:14,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:14,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:57:14 BoogieIcfgContainer [2022-07-21 01:57:14,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:57:14,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:57:14,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:57:14,448 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:57:14,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:12" (3/4) ... [2022-07-21 01:57:14,451 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 01:57:14,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-07-21 01:57:14,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-07-21 01:57:14,460 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 01:57:14,461 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 01:57:14,484 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2022-07-21 01:57:14,484 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2022-07-21 01:57:14,486 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2022-07-21 01:57:14,504 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 01:57:14,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:57:14,505 INFO L158 Benchmark]: Toolchain (without parser) took 3370.12ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 43.8MB in the beginning and 56.6MB in the end (delta: -12.8MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2022-07-21 01:57:14,506 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:14,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.65ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 45.3MB in the end (delta: -1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:57:14,506 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.68ms. Allocated memory is still 62.9MB. Free memory was 45.3MB in the beginning and 43.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:14,507 INFO L158 Benchmark]: Boogie Preprocessor took 36.88ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 42.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:14,507 INFO L158 Benchmark]: RCFGBuilder took 634.47ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 30.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:57:14,507 INFO L158 Benchmark]: TraceAbstraction took 2262.10ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 30.1MB in the beginning and 31.9MB in the end (delta: -1.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2022-07-21 01:57:14,508 INFO L158 Benchmark]: Witness Printer took 57.14ms. Allocated memory is still 75.5MB. Free memory was 31.9MB in the beginning and 56.6MB in the end (delta: -24.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:14,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.65ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 45.3MB in the end (delta: -1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.68ms. Allocated memory is still 62.9MB. Free memory was 45.3MB in the beginning and 43.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.88ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 42.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 634.47ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 30.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2262.10ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 30.1MB in the beginning and 31.9MB in the end (delta: -1.8MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Witness Printer took 57.14ms. Allocated memory is still 75.5MB. Free memory was 31.9MB in the beginning and 56.6MB in the end (delta: -24.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 73]: 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, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 191 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 19 IncrementalHoareTripleChecker+Unchecked, 120 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 71 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 10 QuantifiedInterpolants, 197 SizeOfPredicates, 26 NumberOfNonLiveVariables, 177 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 19]: Loop Invariant [2022-07-21 01:57:14,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-21 01:57:14,528 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:14,528 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-21 01:57:14,529 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 16]: Loop Invariant [2022-07-21 01:57:14,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:14,531 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-21 01:57:14,565 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