./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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_1032a.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 d4dfd0c51c81284345e5d6ac5423c9a25c50963a25059bb5410623e01e53b24e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:41:38,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:41:38,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:41:38,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:41:38,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:41:38,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:41:38,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:41:38,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:41:38,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:41:38,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:41:38,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:41:38,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:41:38,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:41:38,724 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:41:38,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:41:38,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:41:38,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:41:38,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:41:38,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:41:38,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:41:38,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:41:38,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:41:38,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:41:38,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:41:38,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:41:38,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:41:38,755 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:41:38,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:41:38,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:41:38,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:41:38,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:41:38,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:41:38,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:41:38,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:41:38,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:41:38,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:41:38,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:41:38,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:41:38,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:41:38,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:41:38,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:41:38,766 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:41:38,802 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:41:38,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:41:38,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:41:38,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:41:38,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:41:38,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:41:38,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:41:38,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:41:38,805 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:41:38,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:41:38,807 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:41:38,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:41:38,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:41:38,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:41:38,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:41:38,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:41:38,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:41:38,808 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:41:38,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:41:38,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:41:38,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:41:38,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:41:38,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:41:38,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:41:38,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:41:38,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:41:38,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:41:38,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:41:38,810 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:41:38,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:41:38,810 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:41:38,811 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:41:38,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:41:38,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:41:38,811 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfd0c51c81284345e5d6ac5423c9a25c50963a25059bb5410623e01e53b24e [2021-12-15 10:41:39,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:41:39,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:41:39,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:41:39,111 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:41:39,112 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:41:39,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2021-12-15 10:41:39,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea432df42/4f0265904a7242aaac58155d2f2de8e0/FLAG9fe153d3b [2021-12-15 10:41:39,600 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:41:39,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2021-12-15 10:41:39,607 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea432df42/4f0265904a7242aaac58155d2f2de8e0/FLAG9fe153d3b [2021-12-15 10:41:39,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea432df42/4f0265904a7242aaac58155d2f2de8e0 [2021-12-15 10:41:39,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:41:39,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:41:40,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:41:40,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:41:40,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:41:40,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:41:39" (1/1) ... [2021-12-15 10:41:40,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533118aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40, skipping insertion in model container [2021-12-15 10:41:40,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:41:39" (1/1) ... [2021-12-15 10:41:40,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:41:40,029 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:41:40,194 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_1032a.c[1751,1764] [2021-12-15 10:41:40,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:41:40,207 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:41:40,233 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_1032a.c[1751,1764] [2021-12-15 10:41:40,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:41:40,244 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:41:40,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40 WrapperNode [2021-12-15 10:41:40,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:41:40,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:41:40,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:41:40,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:41:40,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,256 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,281 INFO L137 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-12-15 10:41:40,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:41:40,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:41:40,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:41:40,282 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:41:40,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:41:40,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:41:40,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:41:40,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:41:40,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (1/1) ... [2021-12-15 10:41:40,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:41:40,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:41:40,345 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) [2021-12-15 10:41:40,351 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 [2021-12-15 10:41:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:41:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:41:40,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:41:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 10:41:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:41:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 10:41:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:41:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:41:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:41:40,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:41:40,433 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:41:40,435 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:41:40,552 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:41:40,557 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:41:40,558 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-15 10:41:40,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:41:40 BoogieIcfgContainer [2021-12-15 10:41:40,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:41:40,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:41:40,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:41:40,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:41:40,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:41:39" (1/3) ... [2021-12-15 10:41:40,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b2fab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:41:40, skipping insertion in model container [2021-12-15 10:41:40,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:40" (2/3) ... [2021-12-15 10:41:40,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b2fab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:41:40, skipping insertion in model container [2021-12-15 10:41:40,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:41:40" (3/3) ... [2021-12-15 10:41:40,570 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2021-12-15 10:41:40,574 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:41:40,575 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:41:40,612 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:41:40,619 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 [2021-12-15 10:41:40,619 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:41:40,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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) [2021-12-15 10:41:40,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 10:41:40,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:41:40,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:41:40,637 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:41:40,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:41:40,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2021-12-15 10:41:40,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:41:40,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727291977] [2021-12-15 10:41:40,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:41:40,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:41:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:41:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:41:40,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 10:41:40,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727291977] [2021-12-15 10:41:40,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727291977] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:41:40,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:41:40,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:41:40,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726815086] [2021-12-15 10:41:40,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:41:40,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:41:40,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 10:41:40,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:41:40,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:41:40,808 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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) [2021-12-15 10:41:40,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:41:40,821 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2021-12-15 10:41:40,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:41:40,831 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 [2021-12-15 10:41:40,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:41:40,837 INFO L225 Difference]: With dead ends: 48 [2021-12-15 10:41:40,837 INFO L226 Difference]: Without dead ends: 22 [2021-12-15 10:41:40,840 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 [2021-12-15 10:41:40,843 INFO L933 BasicCegarLoop]: 30 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, 30 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 [2021-12-15 10:41:40,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:41:40,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-15 10:41:40,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-15 10:41:40,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2021-12-15 10:41:40,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-12-15 10:41:40,868 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2021-12-15 10:41:40,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:41:40,869 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-15 10:41:40,869 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) [2021-12-15 10:41:40,869 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-12-15 10:41:40,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:41:40,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:41:40,870 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:41:40,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:41:40,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:41:40,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:41:40,872 INFO L85 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2021-12-15 10:41:40,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:41:40,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573712446] [2021-12-15 10:41:40,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:41:40,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:41:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:41:40,913 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 10:41:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 10:41:40,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 10:41:40,956 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 10:41:40,964 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:41:40,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 10:41:40,970 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-15 10:41:40,976 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:41:41,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:41:41 BoogieIcfgContainer [2021-12-15 10:41:41,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:41:41,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:41:41,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:41:41,008 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:41:41,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:41:40" (3/4) ... [2021-12-15 10:41:41,012 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 10:41:41,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:41:41,013 INFO L158 Benchmark]: Toolchain (without parser) took 1018.99ms. Allocated memory is still 94.4MB. Free memory was 61.0MB in the beginning and 62.1MB in the end (delta: -1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:41:41,014 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 56.5MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:41:41,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.54ms. Allocated memory is still 94.4MB. Free memory was 60.8MB in the beginning and 70.2MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:41:41,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.02ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:41:41,018 INFO L158 Benchmark]: Boogie Preprocessor took 26.13ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 67.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:41:41,020 INFO L158 Benchmark]: RCFGBuilder took 250.97ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 56.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:41:41,021 INFO L158 Benchmark]: TraceAbstraction took 446.13ms. Allocated memory is still 94.4MB. Free memory was 55.5MB in the beginning and 62.6MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:41:41,021 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 62.1MB in the end (delta: 486.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:41:41,026 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 56.5MB in the end (delta: 29.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.54ms. Allocated memory is still 94.4MB. Free memory was 60.8MB in the beginning and 70.2MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.02ms. Allocated memory is still 94.4MB. Free memory was 70.2MB in the beginning and 68.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.13ms. Allocated memory is still 94.4MB. Free memory was 68.5MB in the beginning and 67.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 250.97ms. Allocated memory is still 94.4MB. Free memory was 66.9MB in the beginning and 56.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 446.13ms. Allocated memory is still 94.4MB. Free memory was 55.5MB in the beginning and 62.6MB in the end (delta: -7.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 94.4MB. Free memory was 62.6MB in the beginning and 62.1MB in the end (delta: 486.4kB). 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: 82]: 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 81, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = 0.0f; [L78] CALL, EXPR round_float(x) [L15] __uint32_t w; [L17] int exponent_less_127; VAL [\old(x)=0, x=0] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=0, exponent_less_127=128, w=2139095042, x=0] [L27] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=128, w=2139095042, x=0] [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; VAL [\old(x)=0, exponent_less_127=128, w=2139095042, x=0] [L78] RET, EXPR round_float(x) [L78] float res = round_float(x); [L81] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=2139095041, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L81] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L82] reach_error() VAL [res=2139095041, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 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, 30 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, 30 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=25occurred 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, 0.0s 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 [2021-12-15 10:41:41,070 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 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_1032a.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 d4dfd0c51c81284345e5d6ac5423c9a25c50963a25059bb5410623e01e53b24e --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:41:42,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:41:42,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:41:43,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:41:43,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:41:43,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:41:43,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:41:43,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:41:43,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:41:43,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:41:43,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:41:43,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:41:43,046 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:41:43,048 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:41:43,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:41:43,052 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:41:43,053 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:41:43,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:41:43,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:41:43,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:41:43,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:41:43,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:41:43,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:41:43,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:41:43,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:41:43,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:41:43,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:41:43,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:41:43,075 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:41:43,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:41:43,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:41:43,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:41:43,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:41:43,078 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:41:43,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:41:43,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:41:43,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:41:43,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:41:43,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:41:43,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:41:43,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:41:43,087 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:41:43,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:41:43,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:41:43,123 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:41:43,123 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:41:43,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:41:43,124 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:41:43,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:41:43,126 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:41:43,126 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:41:43,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:41:43,126 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:41:43,127 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:41:43,127 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:41:43,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:41:43,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:41:43,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:41:43,128 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:41:43,128 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:41:43,129 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:41:43,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:41:43,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:41:43,129 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:41:43,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:41:43,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:41:43,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:41:43,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:41:43,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:41:43,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:41:43,131 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:41:43,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:41:43,131 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:41:43,131 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:41:43,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:41:43,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:41:43,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:41:43,132 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:41:43,133 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:41:43,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfd0c51c81284345e5d6ac5423c9a25c50963a25059bb5410623e01e53b24e [2021-12-15 10:41:43,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:41:43,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:41:43,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:41:43,488 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:41:43,489 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:41:43,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2021-12-15 10:41:43,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2ea4f82/f9d505b5b06142039d92dd4e3852e352/FLAG1368a591a [2021-12-15 10:41:43,940 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:41:43,940 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2021-12-15 10:41:43,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2ea4f82/f9d505b5b06142039d92dd4e3852e352/FLAG1368a591a [2021-12-15 10:41:44,359 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb2ea4f82/f9d505b5b06142039d92dd4e3852e352 [2021-12-15 10:41:44,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:41:44,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:41:44,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:41:44,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:41:44,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:41:44,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f718b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44, skipping insertion in model container [2021-12-15 10:41:44,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:41:44,397 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:41:44,524 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_1032a.c[1751,1764] [2021-12-15 10:41:44,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:41:44,539 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:41:44,572 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_1032a.c[1751,1764] [2021-12-15 10:41:44,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:41:44,592 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:41:44,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44 WrapperNode [2021-12-15 10:41:44,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:41:44,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:41:44,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:41:44,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:41:44,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,628 INFO L137 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-12-15 10:41:44,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:41:44,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:41:44,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:41:44,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:41:44,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,650 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:41:44,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:41:44,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:41:44,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:41:44,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (1/1) ... [2021-12-15 10:41:44,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:41:44,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:41:44,716 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) [2021-12-15 10:41:44,724 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 [2021-12-15 10:41:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:41:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:41:44,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:41:44,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-15 10:41:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:41:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:41:44,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:41:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-15 10:41:44,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:41:44,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:41:44,813 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:41:44,815 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:41:45,016 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:41:45,022 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:41:45,028 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-15 10:41:45,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:41:45 BoogieIcfgContainer [2021-12-15 10:41:45,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:41:45,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:41:45,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:41:45,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:41:45,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:41:44" (1/3) ... [2021-12-15 10:41:45,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31108734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:41:45, skipping insertion in model container [2021-12-15 10:41:45,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:41:44" (2/3) ... [2021-12-15 10:41:45,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31108734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:41:45, skipping insertion in model container [2021-12-15 10:41:45,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:41:45" (3/3) ... [2021-12-15 10:41:45,038 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2021-12-15 10:41:45,062 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:41:45,063 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:41:45,123 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:41:45,129 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 [2021-12-15 10:41:45,130 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:41:45,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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) [2021-12-15 10:41:45,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 10:41:45,148 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:41:45,149 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:41:45,150 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:41:45,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:41:45,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2021-12-15 10:41:45,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:41:45,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [698907050] [2021-12-15 10:41:45,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:41:45,172 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:41:45,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:41:45,179 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) [2021-12-15 10:41:45,228 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:41:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:41:45,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 10:41:45,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:41:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:41:45,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:41:45,336 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:41:45,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [698907050] [2021-12-15 10:41:45,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [698907050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:41:45,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:41:45,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 10:41:45,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70146218] [2021-12-15 10:41:45,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:41:45,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 10:41:45,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:41:45,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 10:41:45,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 10:41:45,378 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 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) [2021-12-15 10:41:45,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:41:45,394 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2021-12-15 10:41:45,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 10:41:45,396 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 [2021-12-15 10:41:45,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:41:45,408 INFO L225 Difference]: With dead ends: 48 [2021-12-15 10:41:45,409 INFO L226 Difference]: Without dead ends: 22 [2021-12-15 10:41:45,412 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 [2021-12-15 10:41:45,417 INFO L933 BasicCegarLoop]: 30 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, 30 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 [2021-12-15 10:41:45,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 10:41:45,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-12-15 10:41:45,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-12-15 10:41:45,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2021-12-15 10:41:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-12-15 10:41:45,451 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2021-12-15 10:41:45,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:41:45,452 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-12-15 10:41:45,452 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) [2021-12-15 10:41:45,452 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-12-15 10:41:45,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 10:41:45,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:41:45,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:41:45,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 10:41:45,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:41:45,654 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:41:45,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:41:45,655 INFO L85 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2021-12-15 10:41:45,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:41:45,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130883964] [2021-12-15 10:41:45,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:41:45,656 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:41:45,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:41:45,660 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) [2021-12-15 10:41:45,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 10:41:45,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:41:45,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 10:41:45,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:41:45,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:41:45,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:41:45,895 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:41:45,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130883964] [2021-12-15 10:41:45,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130883964] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:41:45,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:41:45,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:41:45,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380483388] [2021-12-15 10:41:45,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:41:45,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 10:41:45,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:41:45,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 10:41:45,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 10:41:45,905 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2021-12-15 10:41:45,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:41:45,968 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-12-15 10:41:45,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-15 10:41:45,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 [2021-12-15 10:41:45,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:41:45,971 INFO L225 Difference]: With dead ends: 31 [2021-12-15 10:41:45,971 INFO L226 Difference]: Without dead ends: 21 [2021-12-15 10:41:45,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 10:41:45,973 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:41:45,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 66 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-12-15 10:41:45,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-15 10:41:45,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-15 10:41:45,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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) [2021-12-15 10:41:45,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-12-15 10:41:45,984 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2021-12-15 10:41:45,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:41:45,985 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-12-15 10:41:45,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2021-12-15 10:41:45,985 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-12-15 10:41:45,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 10:41:45,986 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:41:45,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:41:46,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-15 10:41:46,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:41:46,197 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:41:46,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:41:46,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1636973854, now seen corresponding path program 1 times [2021-12-15 10:41:46,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:41:46,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1069507675] [2021-12-15 10:41:46,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:41:46,199 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:41:46,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:41:46,200 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) [2021-12-15 10:41:46,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 10:41:46,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:41:46,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 10:41:46,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:41:46,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:41:46,365 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:41:46,366 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:41:46,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1069507675] [2021-12-15 10:41:46,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1069507675] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:41:46,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:41:46,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:41:46,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542945171] [2021-12-15 10:41:46,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:41:46,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 10:41:46,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:41:46,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 10:41:46,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 10:41:46,368 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:41:46,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:41:46,409 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-12-15 10:41:46,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 10:41:46,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-15 10:41:46,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:41:46,410 INFO L225 Difference]: With dead ends: 33 [2021-12-15 10:41:46,410 INFO L226 Difference]: Without dead ends: 20 [2021-12-15 10:41:46,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 10:41:46,412 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:41:46,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2021-12-15 10:41:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-15 10:41:46,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-15 10:41:46,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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) [2021-12-15 10:41:46,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-12-15 10:41:46,415 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2021-12-15 10:41:46,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:41:46,416 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-12-15 10:41:46,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 10:41:46,416 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-12-15 10:41:46,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 10:41:46,417 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:41:46,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:41:46,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 10:41:46,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:41:46,627 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:41:46,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:41:46,628 INFO L85 PathProgramCache]: Analyzing trace with hash 812441883, now seen corresponding path program 1 times [2021-12-15 10:41:46,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:41:46,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1276740766] [2021-12-15 10:41:46,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:41:46,628 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:41:46,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:41:46,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:41:46,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 10:41:46,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:41:46,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 10:41:46,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:41:46,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:41:46,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:41:46,833 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:41:46,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1276740766] [2021-12-15 10:41:46,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1276740766] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:41:46,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:41:46,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 10:41:46,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326658059] [2021-12-15 10:41:46,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:41:46,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 10:41:46,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:41:46,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 10:41:46,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 10:41:46,836 INFO L87 Difference]: Start difference. First operand 20 states and 21 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) [2021-12-15 10:41:46,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:41:46,874 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-12-15 10:41:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 10:41:46,875 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 [2021-12-15 10:41:46,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:41:46,876 INFO L225 Difference]: With dead ends: 32 [2021-12-15 10:41:46,876 INFO L226 Difference]: Without dead ends: 20 [2021-12-15 10:41:46,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-15 10:41:46,877 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:41:46,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-12-15 10:41:46,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-15 10:41:46,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-15 10:41:46,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 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) [2021-12-15 10:41:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-12-15 10:41:46,885 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 15 [2021-12-15 10:41:46,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:41:46,886 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-12-15 10:41:46,886 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) [2021-12-15 10:41:46,886 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-12-15 10:41:46,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-15 10:41:46,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:41:46,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:41:46,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 10:41:47,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:41:47,097 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:41:47,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:41:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2021-12-15 10:41:47,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:41:47,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768526399] [2021-12-15 10:41:47,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:41:47,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:41:47,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:41:47,099 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:41:47,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-15 10:41:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:41:47,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-15 10:41:47,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:41:47,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 10:41:47,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2021-12-15 10:41:47,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:41:47,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:41:47,335 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:41:47,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768526399] [2021-12-15 10:41:47,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768526399] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:41:47,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:41:47,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-15 10:41:47,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557429588] [2021-12-15 10:41:47,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:41:47,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 10:41:47,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:41:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 10:41:47,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 10:41:47,337 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-12-15 10:41:47,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:41:47,392 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-12-15 10:41:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-15 10:41:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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 [2021-12-15 10:41:47,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:41:47,394 INFO L225 Difference]: With dead ends: 23 [2021-12-15 10:41:47,394 INFO L226 Difference]: Without dead ends: 20 [2021-12-15 10:41:47,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-15 10:41:47,395 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 23 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:41:47,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 32 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2021-12-15 10:41:47,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-12-15 10:41:47,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-12-15 10:41:47,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 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) [2021-12-15 10:41:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2021-12-15 10:41:47,398 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2021-12-15 10:41:47,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:41:47,398 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2021-12-15 10:41:47,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 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) [2021-12-15 10:41:47,398 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2021-12-15 10:41:47,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-15 10:41:47,399 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:41:47,399 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:41:47,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-15 10:41:47,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:41:47,600 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:41:47,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:41:47,600 INFO L85 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2021-12-15 10:41:47,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:41:47,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605869198] [2021-12-15 10:41:47,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:41:47,601 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:41:47,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:41:47,602 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:41:47,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-15 10:41:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 10:41:47,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-15 10:41:47,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 10:41:47,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-15 10:41:47,779 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-12-15 10:41:47,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 24 [2021-12-15 10:41:48,033 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-12-15 10:41:48,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 28 [2021-12-15 10:41:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 10:41:48,239 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 10:41:48,239 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 10:41:48,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605869198] [2021-12-15 10:41:48,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605869198] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 10:41:48,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 10:41:48,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-15 10:41:48,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130522443] [2021-12-15 10:41:48,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 10:41:48,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-15 10:41:48,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 10:41:48,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-15 10:41:48,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-15 10:41:48,242 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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) [2021-12-15 10:41:48,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 10:41:48,252 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2021-12-15 10:41:48,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-15 10:41:48,253 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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 19 [2021-12-15 10:41:48,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 10:41:48,254 INFO L225 Difference]: With dead ends: 20 [2021-12-15 10:41:48,254 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 10:41:48,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-12-15 10:41:48,255 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 10:41:48,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 24 Unchecked, 0.0s Time] [2021-12-15 10:41:48,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 10:41:48,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 10:41:48,256 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) [2021-12-15 10:41:48,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 10:41:48,256 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-12-15 10:41:48,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 10:41:48,256 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 10:41:48,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 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) [2021-12-15 10:41:48,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 10:41:48,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 10:41:48,259 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 10:41:48,274 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-12-15 10:41:48,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:41:48,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 10:41:48,515 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 48) no Hoare annotation was computed. [2021-12-15 10:41:48,516 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2021-12-15 10:41:48,516 INFO L854 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_#res#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14|) (_ bv0 32))) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (and (= .cse0 .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_~x#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= |ULTIMATE.start_round_float_~x#1| (_ +zero 8 24)) |ULTIMATE.start_main_#t~short9#1|) [2021-12-15 10:41:48,516 INFO L858 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2021-12-15 10:41:48,516 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-12-15 10:41:48,516 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (= |ULTIMATE.start_round_float_~x#1| (_ +zero 8 24)) [2021-12-15 10:41:48,516 INFO L858 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2021-12-15 10:41:48,516 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-12-15 10:41:48,517 INFO L858 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2021-12-15 10:41:48,517 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 10:41:48,517 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 10:41:48,517 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 10:41:48,517 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 41) no Hoare annotation was computed. [2021-12-15 10:41:48,518 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2021-12-15 10:41:48,518 INFO L861 garLoopResultBuilder]: At program point L86(lines 69 87) the Hoare annotation is: true [2021-12-15 10:41:48,518 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-12-15 10:41:48,518 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-12-15 10:41:48,518 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2021-12-15 10:41:48,518 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2021-12-15 10:41:48,518 INFO L854 garLoopResultBuilder]: At program point L66(lines 57 67) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_#res#1| (_ +zero 8 24)) (= |ULTIMATE.start_round_float_~x#1| (_ +zero 8 24)) (exists ((|ULTIMATE.start___signbit_float_~w~1#1| (_ BitVec 32))) (and (exists ((v_arrayElimCell_4 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_4) ((_ extract 30 23) v_arrayElimCell_4) ((_ extract 22 0) v_arrayElimCell_4)))) (and (= (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~1#1|)) .cse0) (= .cse0 (_ +zero 8 24))))) (let ((.cse1 (= (_ bv0 32) (bvand (_ bv2147483648 32) |ULTIMATE.start___signbit_float_~w~1#1|)))) (or (and (not .cse1) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32))) (and (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) .cse1))))) |ULTIMATE.start_main_#t~short9#1|) [2021-12-15 10:41:48,520 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 10:41:48,520 INFO L854 garLoopResultBuilder]: At program point L54(lines 14 55) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_~x#1| (_ +zero 8 24)) (exists ((|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14|) (_ bv0 32))) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (and (= .cse0 .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24)) (= |ULTIMATE.start_round_float_#res#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))))))) [2021-12-15 10:41:48,520 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2021-12-15 10:41:48,520 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2021-12-15 10:41:48,521 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 37) no Hoare annotation was computed. [2021-12-15 10:41:48,524 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-15 10:41:48,526 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 10:41:48,537 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,538 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,538 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,538 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,538 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,539 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,539 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,539 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,542 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,543 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,545 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,546 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,546 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,546 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,546 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,546 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,546 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,547 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,547 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,547 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,547 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,547 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,547 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,548 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,548 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,548 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,548 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,548 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,551 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,552 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,553 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,553 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,561 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,561 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,561 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,561 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,561 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,561 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,562 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,562 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:41:48 BoogieIcfgContainer [2021-12-15 10:41:48,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 10:41:48,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 10:41:48,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 10:41:48,564 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 10:41:48,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:41:45" (3/4) ... [2021-12-15 10:41:48,567 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 10:41:48,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-12-15 10:41:48,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-12-15 10:41:48,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 10:41:48,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 10:41:48,595 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == ~Pluszero~LONGDOUBLE() && (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0])) [2021-12-15 10:41:48,595 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~Pluszero~LONGDOUBLE() && (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]))) && x == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2021-12-15 10:41:48,595 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___signbit_float_~w~1#1 : bv32 :: (\exists v_arrayElimCell_4 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___signbit_float_~w~1#1[31:31], ULTIMATE.start___signbit_float_~w~1#1[30:23], ULTIMATE.start___signbit_float_~w~1#1[22:0]) == ~fp~LONGDOUBLE(v_arrayElimCell_4[31:31], v_arrayElimCell_4[30:23], v_arrayElimCell_4[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_4[31:31], v_arrayElimCell_4[30:23], v_arrayElimCell_4[22:0]) == ~Pluszero~LONGDOUBLE()) && ((!(0bv32 == ~bvand32(2147483648bv32, ULTIMATE.start___signbit_float_~w~1#1)) && \result == 1bv32) || (\result == 0bv32 && 0bv32 == ~bvand32(2147483648bv32, ULTIMATE.start___signbit_float_~w~1#1))))) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2021-12-15 10:41:48,611 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 10:41:48,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 10:41:48,612 INFO L158 Benchmark]: Toolchain (without parser) took 4247.47ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 43.8MB in the beginning and 56.4MB in the end (delta: -12.6MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2021-12-15 10:41:48,612 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:41:48,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.06ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 45.6MB in the end (delta: -2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:41:48,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.62ms. Allocated memory is still 62.9MB. Free memory was 45.6MB in the beginning and 43.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:41:48,613 INFO L158 Benchmark]: Boogie Preprocessor took 51.03ms. Allocated memory is still 62.9MB. Free memory was 43.7MB in the beginning and 42.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 10:41:48,613 INFO L158 Benchmark]: RCFGBuilder took 349.68ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 30.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 10:41:48,613 INFO L158 Benchmark]: TraceAbstraction took 3529.21ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 30.0MB in the beginning and 30.2MB in the end (delta: -242.0kB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2021-12-15 10:41:48,613 INFO L158 Benchmark]: Witness Printer took 47.80ms. Allocated memory is still 75.5MB. Free memory was 30.2MB in the beginning and 56.4MB in the end (delta: -26.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 10:41:48,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.06ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 45.6MB in the end (delta: -2.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.62ms. Allocated memory is still 62.9MB. Free memory was 45.6MB in the beginning and 43.7MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.03ms. Allocated memory is still 62.9MB. Free memory was 43.7MB in the beginning and 42.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 349.68ms. Allocated memory is still 62.9MB. Free memory was 42.3MB in the beginning and 30.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3529.21ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 30.0MB in the beginning and 30.2MB in the end (delta: -242.0kB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Witness Printer took 47.80ms. Allocated memory is still 75.5MB. Free memory was 30.2MB in the beginning and 56.4MB in the end (delta: -26.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: 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, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 36 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 289 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 52 IncrementalHoareTripleChecker+Unchecked, 187 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 102 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 37, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 182 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 76 ConstructedInterpolants, 26 QuantifiedInterpolants, 969 SizeOfPredicates, 39 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 14]: Loop Invariant [2021-12-15 10:41:48,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,630 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,631 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] Derived loop invariant: x == ~Pluszero~LONGDOUBLE() && (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0])) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant [2021-12-15 10:41:48,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,634 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,636 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,636 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,637 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_4,QUANTIFIED] [2021-12-15 10:41:48,637 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-12-15 10:41:48,637 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] Derived loop invariant: ((\result == ~Pluszero~LONGDOUBLE() && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___signbit_float_~w~1#1 : bv32 :: (\exists v_arrayElimCell_4 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___signbit_float_~w~1#1[31:31], ULTIMATE.start___signbit_float_~w~1#1[30:23], ULTIMATE.start___signbit_float_~w~1#1[22:0]) == ~fp~LONGDOUBLE(v_arrayElimCell_4[31:31], v_arrayElimCell_4[30:23], v_arrayElimCell_4[22:0]) && ~fp~LONGDOUBLE(v_arrayElimCell_4[31:31], v_arrayElimCell_4[30:23], v_arrayElimCell_4[22:0]) == ~Pluszero~LONGDOUBLE()) && ((!(0bv32 == ~bvand32(2147483648bv32, ULTIMATE.start___signbit_float_~w~1#1)) && \result == 1bv32) || (\result == 0bv32 && 0bv32 == ~bvand32(2147483648bv32, ULTIMATE.start___signbit_float_~w~1#1))))) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 60]: Loop Invariant [2021-12-15 10:41:48,637 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,637 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,638 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,638 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,638 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,638 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,638 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,638 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14,QUANTIFIED] [2021-12-15 10:41:48,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,639 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-12-15 10:41:48,640 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] Derived loop invariant: ((\result == ~Pluszero~LONGDOUBLE() && (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14 : bv32 :: (unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32] && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_14][0bv32][22:0]) == ~Pluszero~LONGDOUBLE()) && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]))) && x == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux RESULT: Ultimate proved your program to be correct! [2021-12-15 10:41:48,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE