./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1031.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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_1031.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 635b3a6bb693049216965e64098ae1bc2a282d094f3ff6d9621a11efee2ca89f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:03:18,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:03:18,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:03:18,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:03:18,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:03:18,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:03:18,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:03:18,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:03:18,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:03:18,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:03:18,878 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:03:18,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:03:18,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:03:18,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:03:18,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:03:18,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:03:18,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:03:18,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:03:18,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:03:18,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:03:18,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:03:18,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:03:18,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:03:18,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:03:18,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:03:18,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:03:18,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:03:18,910 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:03:18,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:03:18,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:03:18,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:03:18,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:03:18,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:03:18,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:03:18,913 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:03:18,913 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:03:18,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:03:18,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:03:18,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:03:18,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:03:18,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:03:18,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 12:03:18,946 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:03:18,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:03:18,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:03:18,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:03:18,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:03:18,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:03:18,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:03:18,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:03:18,948 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:03:18,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:03:18,949 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:03:18,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 12:03:18,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:03:18,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:03:18,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:03:18,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:03:18,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:03:18,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:03:18,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:03:18,950 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:03:18,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:03:18,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:03:18,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:03:18,951 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:03:18,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:03:18,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:03:18,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:03:18,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:03:18,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 12:03:18,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 12:03:18,952 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:03:18,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:03:18,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:03:18,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:03:18,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635b3a6bb693049216965e64098ae1bc2a282d094f3ff6d9621a11efee2ca89f [2021-12-21 12:03:19,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:03:19,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:03:19,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:03:19,138 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:03:19,139 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:03:19,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2021-12-21 12:03:19,211 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d61a41661/1b5c04dd16f54ba2ba08b74dc01374b8/FLAG6012608d2 [2021-12-21 12:03:19,568 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:03:19,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2021-12-21 12:03:19,576 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d61a41661/1b5c04dd16f54ba2ba08b74dc01374b8/FLAG6012608d2 [2021-12-21 12:03:19,980 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d61a41661/1b5c04dd16f54ba2ba08b74dc01374b8 [2021-12-21 12:03:19,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:03:19,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:03:19,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:03:19,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:03:20,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:03:20,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:03:19" (1/1) ... [2021-12-21 12:03:20,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2534b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20, skipping insertion in model container [2021-12-21 12:03:20,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:03:19" (1/1) ... [2021-12-21 12:03:20,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:03:20,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:03:20,193 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_1031.c[1571,1584] [2021-12-21 12:03:20,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:03:20,221 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:03:20,241 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_1031.c[1571,1584] [2021-12-21 12:03:20,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:03:20,275 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:03:20,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20 WrapperNode [2021-12-21 12:03:20,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:03:20,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:03:20,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:03:20,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:03:20,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,327 INFO L137 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-12-21 12:03:20,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:03:20,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:03:20,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:03:20,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:03:20,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:03:20,374 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:03:20,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:03:20,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:03:20,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (1/1) ... [2021-12-21 12:03:20,390 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:03:20,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:03:20,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 12:03:20,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 12:03:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:03:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 12:03:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 12:03:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 12:03:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 12:03:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-21 12:03:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:03:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:03:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 12:03:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 12:03:20,560 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:03:20,563 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:03:20,694 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 12:03:20,699 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 12:03:20,699 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-21 12:03:20,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:20 BoogieIcfgContainer [2021-12-21 12:03:20,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 12:03:20,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 12:03:20,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 12:03:20,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 12:03:20,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:03:19" (1/3) ... [2021-12-21 12:03:20,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11fb395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:03:20, skipping insertion in model container [2021-12-21 12:03:20,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:20" (2/3) ... [2021-12-21 12:03:20,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11fb395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:03:20, skipping insertion in model container [2021-12-21 12:03:20,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:20" (3/3) ... [2021-12-21 12:03:20,712 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2021-12-21 12:03:20,716 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 12:03:20,716 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 12:03:20,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 12:03:20,786 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 12:03:20,786 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 12:03:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 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) [2021-12-21 12:03:20,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-21 12:03:20,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:03:20,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:03:20,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:03:20,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:03:20,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2021-12-21 12:03:20,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:03:20,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725686297] [2021-12-21 12:03:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:03:20,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:03:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:03:20,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:03:20,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 12:03:20,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725686297] [2021-12-21 12:03:20,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725686297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:03:20,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:03:20,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 12:03:20,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777341237] [2021-12-21 12:03:20,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:03:20,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 12:03:20,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 12:03:20,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 12:03:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 12:03:20,976 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 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) 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) [2021-12-21 12:03:20,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:03:20,987 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2021-12-21 12:03:20,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 12:03:20,989 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 [2021-12-21 12:03:20,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:03:20,995 INFO L225 Difference]: With dead ends: 40 [2021-12-21 12:03:20,995 INFO L226 Difference]: Without dead ends: 18 [2021-12-21 12:03:20,997 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:03:21,002 INFO L933 BasicCegarLoop]: 25 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, 25 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 [2021-12-21 12:03:21,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:03:21,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-21 12:03:21,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-21 12:03:21,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:03:21,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-12-21 12:03:21,023 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2021-12-21 12:03:21,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:03:21,023 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-12-21 12:03:21,023 INFO L471 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) [2021-12-21 12:03:21,024 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-12-21 12:03:21,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-21 12:03:21,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:03:21,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:03:21,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 12:03:21,025 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:03:21,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:03:21,025 INFO L85 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2021-12-21 12:03:21,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 12:03:21,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729322092] [2021-12-21 12:03:21,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:03:21,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 12:03:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 12:03:21,133 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 12:03:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 12:03:21,171 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 12:03:21,172 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 12:03:21,173 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 12:03:21,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 12:03:21,177 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 12:03:21,179 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 12:03:21,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 12:03:21 BoogieIcfgContainer [2021-12-21 12:03:21,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 12:03:21,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 12:03:21,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 12:03:21,197 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 12:03:21,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:20" (3/4) ... [2021-12-21 12:03:21,200 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 12:03:21,200 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 12:03:21,201 INFO L158 Benchmark]: Toolchain (without parser) took 1216.43ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 55.6MB in the beginning and 92.3MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:21,201 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:21,201 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.04ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 55.4MB in the beginning and 96.0MB in the end (delta: -40.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 12:03:21,202 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.65ms. Allocated memory is still 119.5MB. Free memory was 96.0MB in the beginning and 94.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:21,202 INFO L158 Benchmark]: Boogie Preprocessor took 45.21ms. Allocated memory is still 119.5MB. Free memory was 94.1MB in the beginning and 93.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:21,203 INFO L158 Benchmark]: RCFGBuilder took 326.63ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 82.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 12:03:21,203 INFO L158 Benchmark]: TraceAbstraction took 494.46ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 92.3MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:21,203 INFO L158 Benchmark]: Witness Printer took 3.06ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:21,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.04ms. Allocated memory was 86.0MB in the beginning and 119.5MB in the end (delta: 33.6MB). Free memory was 55.4MB in the beginning and 96.0MB in the end (delta: -40.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.65ms. Allocated memory is still 119.5MB. Free memory was 96.0MB in the beginning and 94.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.21ms. Allocated memory is still 119.5MB. Free memory was 94.1MB in the beginning and 93.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.63ms. Allocated memory is still 119.5MB. Free memory was 93.1MB in the beginning and 82.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 494.46ms. Allocated memory is still 119.5MB. Free memory was 82.1MB in the beginning and 92.3MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.06ms. Allocated memory is still 119.5MB. Free memory is still 92.3MB. 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: 72]: 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 57, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 24. Possible FailurePath: [L67] float x = 0.0f / 0.0f; [L68] CALL, EXPR round_float(x) [L14] __uint32_t w; [L16] int exponent_less_127; VAL [\old(x)=2139095043, x=2139095043] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (w) = gf_u.word [L24] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=2139095043, exponent_less_127=128, w=2139095042, x=2139095043] [L26] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=2139095043, exponent_less_127=128, w=2139095042, x=2139095043] [L42] COND TRUE exponent_less_127 == 128 [L44] return x + x; VAL [\old(x)=2139095043, exponent_less_127=128, w=2139095042, x=2139095043] [L68] RET, EXPR round_float(x) [L68] float res = round_float(x); [L71] CALL, EXPR isnan_float(res) [L57] return x != x; VAL [\old(x)=2139095041, \result=0, x=2139095041] [L71] RET, EXPR isnan_float(res) [L71] COND TRUE !isnan_float(res) [L72] reach_error() VAL [res=2139095041, x=2139095043] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 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, 25 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=21occurred 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 [2021-12-21 12:03:21,237 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_1031.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 635b3a6bb693049216965e64098ae1bc2a282d094f3ff6d9621a11efee2ca89f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 12:03:22,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 12:03:22,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 12:03:23,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 12:03:23,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 12:03:23,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 12:03:23,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 12:03:23,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 12:03:23,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 12:03:23,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 12:03:23,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 12:03:23,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 12:03:23,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 12:03:23,028 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 12:03:23,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 12:03:23,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 12:03:23,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 12:03:23,035 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 12:03:23,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 12:03:23,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 12:03:23,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 12:03:23,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 12:03:23,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 12:03:23,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 12:03:23,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 12:03:23,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 12:03:23,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 12:03:23,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 12:03:23,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 12:03:23,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 12:03:23,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 12:03:23,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 12:03:23,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 12:03:23,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 12:03:23,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 12:03:23,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 12:03:23,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 12:03:23,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 12:03:23,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 12:03:23,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 12:03:23,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 12:03:23,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 12:03:23,093 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 12:03:23,094 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 12:03:23,095 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 12:03:23,095 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 12:03:23,095 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 12:03:23,096 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 12:03:23,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 12:03:23,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 12:03:23,097 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 12:03:23,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 12:03:23,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 12:03:23,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 12:03:23,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 12:03:23,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 12:03:23,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 12:03:23,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 12:03:23,099 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 12:03:23,099 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 12:03:23,099 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 12:03:23,100 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 12:03:23,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 12:03:23,100 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 12:03:23,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 12:03:23,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 12:03:23,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 12:03:23,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 12:03:23,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:03:23,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 12:03:23,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 12:03:23,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 12:03:23,102 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 12:03:23,102 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 12:03:23,102 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 12:03:23,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 12:03:23,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 12:03:23,103 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 12:03:23,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 12:03:23,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 635b3a6bb693049216965e64098ae1bc2a282d094f3ff6d9621a11efee2ca89f [2021-12-21 12:03:23,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 12:03:23,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 12:03:23,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 12:03:23,506 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 12:03:23,507 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 12:03:23,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2021-12-21 12:03:23,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e394f4b4/b897a1d4d8de4bdd90028f42d37ae1f7/FLAGcdfd1123f [2021-12-21 12:03:23,930 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 12:03:23,931 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2021-12-21 12:03:23,935 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e394f4b4/b897a1d4d8de4bdd90028f42d37ae1f7/FLAGcdfd1123f [2021-12-21 12:03:23,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e394f4b4/b897a1d4d8de4bdd90028f42d37ae1f7 [2021-12-21 12:03:23,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 12:03:23,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 12:03:23,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 12:03:23,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 12:03:23,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 12:03:23,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:03:23" (1/1) ... [2021-12-21 12:03:23,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccf71e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:23, skipping insertion in model container [2021-12-21 12:03:23,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 12:03:23" (1/1) ... [2021-12-21 12:03:23,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 12:03:23,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 12:03:24,107 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_1031.c[1571,1584] [2021-12-21 12:03:24,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:03:24,130 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 12:03:24,149 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_1031.c[1571,1584] [2021-12-21 12:03:24,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 12:03:24,178 INFO L208 MainTranslator]: Completed translation [2021-12-21 12:03:24,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24 WrapperNode [2021-12-21 12:03:24,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 12:03:24,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 12:03:24,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 12:03:24,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 12:03:24,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,231 INFO L137 Inliner]: procedures = 19, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-12-21 12:03:24,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 12:03:24,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 12:03:24,232 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 12:03:24,232 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 12:03:24,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 12:03:24,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 12:03:24,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 12:03:24,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 12:03:24,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (1/1) ... [2021-12-21 12:03:24,281 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 12:03:24,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 12:03:24,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 12:03:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 12:03:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 12:03:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 12:03:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-21 12:03:24,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 12:03:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 12:03:24,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 12:03:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-21 12:03:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 12:03:24,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 12:03:24,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 12:03:24,397 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 12:03:24,398 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 12:03:24,602 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 12:03:24,605 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 12:03:24,606 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-21 12:03:24,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:24 BoogieIcfgContainer [2021-12-21 12:03:24,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 12:03:24,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 12:03:24,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 12:03:24,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 12:03:24,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 12:03:23" (1/3) ... [2021-12-21 12:03:24,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31872ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:03:24, skipping insertion in model container [2021-12-21 12:03:24,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 12:03:24" (2/3) ... [2021-12-21 12:03:24,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31872ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 12:03:24, skipping insertion in model container [2021-12-21 12:03:24,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:24" (3/3) ... [2021-12-21 12:03:24,612 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2021-12-21 12:03:24,616 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 12:03:24,616 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 12:03:24,650 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 12:03:24,664 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 12:03:24,664 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 12:03:24,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 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) [2021-12-21 12:03:24,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-21 12:03:24,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:03:24,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:03:24,696 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:03:24,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:03:24,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2021-12-21 12:03:24,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 12:03:24,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973353800] [2021-12-21 12:03:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:03:24,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 12:03:24,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 12:03:24,732 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 12:03:24,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 12:03:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:03:24,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 12:03:24,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:03:24,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:03:24,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 12:03:24,867 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 12:03:24,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973353800] [2021-12-21 12:03:24,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973353800] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:03:24,869 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:03:24,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 12:03:24,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485765111] [2021-12-21 12:03:24,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:03:24,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 12:03:24,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 12:03:24,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 12:03:24,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 12:03:24,898 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 20 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) 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) [2021-12-21 12:03:24,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:03:24,911 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2021-12-21 12:03:24,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 12:03:24,913 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 [2021-12-21 12:03:24,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:03:24,925 INFO L225 Difference]: With dead ends: 40 [2021-12-21 12:03:24,925 INFO L226 Difference]: Without dead ends: 18 [2021-12-21 12:03:24,927 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:03:24,931 INFO L933 BasicCegarLoop]: 25 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, 25 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 [2021-12-21 12:03:24,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:03:24,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-12-21 12:03:24,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-21 12:03:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:03:24,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2021-12-21 12:03:24,960 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2021-12-21 12:03:24,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:03:24,960 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-12-21 12:03:24,961 INFO L471 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) [2021-12-21 12:03:24,961 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2021-12-21 12:03:24,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-21 12:03:24,962 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:03:24,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:03:24,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-21 12:03:25,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 12:03:25,172 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:03:25,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:03:25,175 INFO L85 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2021-12-21 12:03:25,178 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 12:03:25,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310578053] [2021-12-21 12:03:25,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:03:25,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 12:03:25,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 12:03:25,183 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) [2021-12-21 12:03:25,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 12:03:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:03:25,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-21 12:03:25,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:03:25,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:03:25,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 12:03:25,398 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 12:03:25,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310578053] [2021-12-21 12:03:25,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310578053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:03:25,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:03:25,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 12:03:25,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083185915] [2021-12-21 12:03:25,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:03:25,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 12:03:25,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 12:03:25,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 12:03:25,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-21 12:03:25,406 INFO L87 Difference]: Start difference. First operand 18 states and 22 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) [2021-12-21 12:03:25,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:03:25,487 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2021-12-21 12:03:25,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 12:03:25,488 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 [2021-12-21 12:03:25,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:03:25,489 INFO L225 Difference]: With dead ends: 23 [2021-12-21 12:03:25,489 INFO L226 Difference]: Without dead ends: 17 [2021-12-21 12:03:25,489 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:03:25,490 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 26 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 12:03:25,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 64 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 12:03:25,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-12-21 12:03:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-12-21 12:03:25,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.125) internal successors, (18), 16 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) [2021-12-21 12:03:25,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-12-21 12:03:25,493 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2021-12-21 12:03:25,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:03:25,493 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-12-21 12:03:25,493 INFO L471 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) [2021-12-21 12:03:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-12-21 12:03:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-21 12:03:25,494 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 12:03:25,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 12:03:25,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-21 12:03:25,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 12:03:25,695 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 12:03:25,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 12:03:25,696 INFO L85 PathProgramCache]: Analyzing trace with hash 812423977, now seen corresponding path program 1 times [2021-12-21 12:03:25,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 12:03:25,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1902231631] [2021-12-21 12:03:25,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 12:03:25,697 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 12:03:25,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 12:03:25,698 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) [2021-12-21 12:03:25,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-21 12:03:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 12:03:25,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 12:03:25,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 12:03:25,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 12:03:25,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 12:03:25,874 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 12:03:25,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1902231631] [2021-12-21 12:03:25,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1902231631] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 12:03:25,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 12:03:25,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 12:03:25,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173702960] [2021-12-21 12:03:25,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 12:03:25,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 12:03:25,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 12:03:25,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 12:03:25,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 12:03:25,876 INFO L87 Difference]: Start difference. First operand 17 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) [2021-12-21 12:03:25,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 12:03:25,877 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-12-21 12:03:25,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 12:03:25,878 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 [2021-12-21 12:03:25,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 12:03:25,878 INFO L225 Difference]: With dead ends: 17 [2021-12-21 12:03:25,878 INFO L226 Difference]: Without dead ends: 0 [2021-12-21 12:03:25,878 INFO L932 BasicCegarLoop]: 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 [2021-12-21 12:03:25,879 INFO L933 BasicCegarLoop]: 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 [2021-12-21 12:03:25,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2021-12-21 12:03:25,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-21 12:03:25,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-21 12:03:25,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 12:03:25,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-21 12:03:25,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-12-21 12:03:25,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 12:03:25,881 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 12:03:25,881 INFO L471 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) [2021-12-21 12:03:25,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-21 12:03:25,881 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-21 12:03:25,883 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 12:03:25,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-21 12:03:26,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 12:03:26,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-21 12:03:26,128 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 40) no Hoare annotation was computed. [2021-12-21 12:03:26,128 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 52) no Hoare annotation was computed. [2021-12-21 12:03:26,128 INFO L858 garLoopResultBuilder]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2021-12-21 12:03:26,129 INFO L858 garLoopResultBuilder]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2021-12-21 12:03:26,129 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-21 12:03:26,129 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-21 12:03:26,129 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-21 12:03:26,129 INFO L854 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_#res#1| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= |ULTIMATE.start_round_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2021-12-21 12:03:26,130 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2021-12-21 12:03:26,130 INFO L854 garLoopResultBuilder]: At program point L53(lines 13 54) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_#res#1| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= |ULTIMATE.start_round_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-21 12:03:26,130 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-21 12:03:26,130 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2021-12-21 12:03:26,130 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-12-21 12:03:26,130 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 74) no Hoare annotation was computed. [2021-12-21 12:03:26,130 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 36) no Hoare annotation was computed. [2021-12-21 12:03:26,131 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 47) no Hoare annotation was computed. [2021-12-21 12:03:26,131 INFO L858 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2021-12-21 12:03:26,131 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-21 12:03:26,131 INFO L858 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2021-12-21 12:03:26,131 INFO L861 garLoopResultBuilder]: At program point L76(lines 59 77) the Hoare annotation is: true [2021-12-21 12:03:26,131 INFO L858 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2021-12-21 12:03:26,134 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-21 12:03:26,135 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 12:03:26,140 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,143 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,144 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,145 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,145 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,145 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,145 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,145 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,176 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,177 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,177 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,177 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,177 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,178 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,178 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,178 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 12:03:26 BoogieIcfgContainer [2021-12-21 12:03:26,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 12:03:26,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 12:03:26,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 12:03:26,180 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 12:03:26,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 12:03:24" (3/4) ... [2021-12-21 12:03:26,182 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-21 12:03:26,189 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-12-21 12:03:26,200 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-21 12:03:26,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-21 12:03:26,201 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-21 12:03:26,231 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-12-21 12:03:26,232 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-12-21 12:03:26,251 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 12:03:26,251 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 12:03:26,252 INFO L158 Benchmark]: Toolchain (without parser) took 2305.01ms. Allocated memory was 52.4MB in the beginning and 98.6MB in the end (delta: 46.1MB). Free memory was 29.6MB in the beginning and 76.9MB in the end (delta: -47.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:26,252 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 35.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:26,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.90ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.4MB in the beginning and 56.3MB in the end (delta: -26.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:26,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.23ms. Allocated memory is still 73.4MB. Free memory was 56.3MB in the beginning and 54.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 12:03:26,253 INFO L158 Benchmark]: Boogie Preprocessor took 42.70ms. Allocated memory is still 73.4MB. Free memory was 54.4MB in the beginning and 53.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:26,253 INFO L158 Benchmark]: RCFGBuilder took 331.83ms. Allocated memory is still 73.4MB. Free memory was 53.0MB in the beginning and 42.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 12:03:26,253 INFO L158 Benchmark]: TraceAbstraction took 1570.65ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 41.6MB in the beginning and 80.2MB in the end (delta: -38.6MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2021-12-21 12:03:26,254 INFO L158 Benchmark]: Witness Printer took 71.82ms. Allocated memory is still 98.6MB. Free memory was 79.6MB in the beginning and 76.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 12:03:26,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory was 34.7MB in the beginning and 34.7MB in the end (delta: 35.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.90ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.4MB in the beginning and 56.3MB in the end (delta: -26.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.23ms. Allocated memory is still 73.4MB. Free memory was 56.3MB in the beginning and 54.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.70ms. Allocated memory is still 73.4MB. Free memory was 54.4MB in the beginning and 53.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 331.83ms. Allocated memory is still 73.4MB. Free memory was 53.0MB in the beginning and 42.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1570.65ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 41.6MB in the beginning and 80.2MB in the end (delta: -38.6MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Witness Printer took 71.82ms. Allocated memory is still 98.6MB. Free memory was 79.6MB in the beginning and 76.9MB in the end (delta: 2.7MB). 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 72]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 4 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 43 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 58 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 4 QuantifiedInterpolants, 148 SizeOfPredicates, 16 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 18]: Loop Invariant [2021-12-21 12:03:26,262 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,263 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 57]: Loop Invariant [2021-12-21 12:03:26,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,277 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 13]: Loop Invariant [2021-12-21 12:03:26,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,279 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-21 12:03:26,279 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-12-21 12:03:26,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE