./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc 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/floats-cbmc-regression/float20.i -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 dcedd10b8fa79fdd7f584d24ebbda0efe903404a ........................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/floats-cbmc-regression/float20.i -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 dcedd10b8fa79fdd7f584d24ebbda0efe903404a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:57:16,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:57:16,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:57:16,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:57:16,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:57:16,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:57:16,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:57:16,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:57:16,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:57:16,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:57:16,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:57:16,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:57:16,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:57:16,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:57:16,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:57:16,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:57:16,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:57:16,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:57:16,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:57:16,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:57:16,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:57:16,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:57:16,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:57:16,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:57:16,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:57:16,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:57:16,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:57:16,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:57:16,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:57:16,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:57:16,842 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:57:16,843 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:57:16,844 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:57:16,845 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:57:16,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:57:16,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:57:16,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:57:16,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:57:16,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:57:16,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:57:16,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:57:16,855 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 21:57:16,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:57:16,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:57:16,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:57:16,897 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:57:16,897 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:57:16,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:57:16,898 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:57:16,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 21:57:16,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:57:16,899 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:57:16,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:57:16,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:57:16,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:57:16,901 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:57:16,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:57:16,902 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:57:16,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:57:16,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:57:16,903 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:57:16,903 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:57:16,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:57:16,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:16,904 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:57:16,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:57:16,905 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:57:16,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 21:57:16,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 21:57:16,906 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:57:16,906 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:57:16,907 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcedd10b8fa79fdd7f584d24ebbda0efe903404a [2020-10-24 21:57:17,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:57:17,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:57:17,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:57:17,403 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:57:17,404 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:57:17,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-10-24 21:57:17,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d64fa3da/2936a53e084843468798bdd291df03dc/FLAGbc71400e7 [2020-10-24 21:57:18,180 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:57:18,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-10-24 21:57:18,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d64fa3da/2936a53e084843468798bdd291df03dc/FLAGbc71400e7 [2020-10-24 21:57:18,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d64fa3da/2936a53e084843468798bdd291df03dc [2020-10-24 21:57:18,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:57:18,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:57:18,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:18,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:57:18,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:57:18,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2e4d18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18, skipping insertion in model container [2020-10-24 21:57:18,531 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:57:18,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:57:18,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:18,859 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:57:18,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:18,906 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:57:18,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18 WrapperNode [2020-10-24 21:57:18,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:18,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:18,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:57:18,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:57:18,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:18,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:57:18,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:57:18,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:57:18,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... [2020-10-24 21:57:18,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:57:18,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:57:18,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:57:18,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:57:18,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 21:57:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:57:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:57:19,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:57:19,325 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:57:19,325 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 21:57:19,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:19 BoogieIcfgContainer [2020-10-24 21:57:19,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:57:19,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:57:19,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:57:19,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:57:19,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:57:18" (1/3) ... [2020-10-24 21:57:19,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:19, skipping insertion in model container [2020-10-24 21:57:19,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:18" (2/3) ... [2020-10-24 21:57:19,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@151065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:19, skipping insertion in model container [2020-10-24 21:57:19,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:19" (3/3) ... [2020-10-24 21:57:19,338 INFO L111 eAbstractionObserver]: Analyzing ICFG float20.i [2020-10-24 21:57:19,352 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:57:19,358 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-24 21:57:19,373 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-24 21:57:19,408 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:57:19,409 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:57:19,409 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:57:19,410 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:57:19,410 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:57:19,410 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:57:19,410 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:57:19,411 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:57:19,431 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-24 21:57:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 21:57:19,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:19,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:19,443 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:19,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:19,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-10-24 21:57:19,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 21:57:19,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992618655] [2020-10-24 21:57:19,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 21:57:19,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:19,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:19,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992618655] [2020-10-24 21:57:19,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:19,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 21:57:19,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903878927] [2020-10-24 21:57:19,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 21:57:19,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 21:57:19,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 21:57:19,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 21:57:19,670 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-10-24 21:57:19,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:19,689 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2020-10-24 21:57:19,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 21:57:19,691 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-24 21:57:19,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:19,698 INFO L225 Difference]: With dead ends: 52 [2020-10-24 21:57:19,699 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 21:57:19,702 INFO L677 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 [2020-10-24 21:57:19,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 21:57:19,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 21:57:19,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 21:57:19,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-10-24 21:57:19,740 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2020-10-24 21:57:19,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:19,741 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-10-24 21:57:19,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 21:57:19,742 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-10-24 21:57:19,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 21:57:19,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:19,743 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:19,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 21:57:19,743 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:19,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:19,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-10-24 21:57:19,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 21:57:19,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121279683] [2020-10-24 21:57:19,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 21:57:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:57:19,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:57:19,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 21:57:19,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 21:57:19,813 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 21:57:19,814 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 21:57:19,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 21:57:19,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:57:19 BoogieIcfgContainer [2020-10-24 21:57:19,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:57:19,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:57:19,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:57:19,841 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:57:19,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:19" (3/4) ... [2020-10-24 21:57:19,845 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 21:57:19,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:57:19,848 INFO L168 Benchmark]: Toolchain (without parser) took 1340.26 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 24.9 MB in the beginning and 29.2 MB in the end (delta: -4.3 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:19,850 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 48.2 MB. Free memory was 30.0 MB in the beginning and 29.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:19,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.78 ms. Allocated memory is still 48.2 MB. Free memory was 24.2 MB in the beginning and 24.2 MB in the end (delta: 41.5 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:19,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.88 ms. Allocated memory is still 48.2 MB. Free memory was 24.2 MB in the beginning and 22.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:19,853 INFO L168 Benchmark]: Boogie Preprocessor took 25.29 ms. Allocated memory is still 48.2 MB. Free memory was 22.7 MB in the beginning and 21.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:19,854 INFO L168 Benchmark]: RCFGBuilder took 350.18 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 21.6 MB in the beginning and 33.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:19,855 INFO L168 Benchmark]: TraceAbstraction took 510.77 ms. Allocated memory is still 60.8 MB. Free memory was 32.9 MB in the beginning and 29.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-10-24 21:57:19,856 INFO L168 Benchmark]: Witness Printer took 5.10 ms. Allocated memory is still 60.8 MB. Free memory was 29.5 MB in the beginning and 29.2 MB in the end (delta: 304.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:57:19,861 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 48.2 MB. Free memory was 30.0 MB in the beginning and 29.9 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.78 ms. Allocated memory is still 48.2 MB. Free memory was 24.2 MB in the beginning and 24.2 MB in the end (delta: 41.5 kB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.88 ms. Allocated memory is still 48.2 MB. Free memory was 24.2 MB in the beginning and 22.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.29 ms. Allocated memory is still 48.2 MB. Free memory was 22.7 MB in the beginning and 21.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 350.18 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 21.6 MB in the beginning and 33.3 MB in the end (delta: -11.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 510.77 ms. Allocated memory is still 60.8 MB. Free memory was 32.9 MB in the beginning and 29.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Witness Printer took 5.10 ms. Allocated memory is still 60.8 MB. Free memory was 29.5 MB in the beginning and 29.2 MB in the end (delta: 304.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18. Possible FailurePath: [L48] float f=__VERIFIER_nondet_float(); [L17] COND FALSE !(!(min == 0x1.fffffep-105f)) [L18] float modifier = (0x1.0p-23 * (1<<1)); [L19] float ulpdiff = min * modifier; [L21] COND TRUE !(ulpdiff == 0x1p-126f) [L13] COND FALSE !(0) [L13] __assert_fail ("0", "float20.c", 4, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=29occurred in iteration=0, 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, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 21:57:22,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 21:57:22,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 21:57:22,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 21:57:22,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 21:57:22,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 21:57:22,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 21:57:22,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 21:57:22,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 21:57:22,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 21:57:22,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 21:57:22,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 21:57:22,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 21:57:22,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 21:57:22,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 21:57:22,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 21:57:22,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 21:57:22,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 21:57:22,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 21:57:22,490 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 21:57:22,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 21:57:22,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 21:57:22,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 21:57:22,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 21:57:22,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 21:57:22,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 21:57:22,514 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 21:57:22,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 21:57:22,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 21:57:22,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 21:57:22,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 21:57:22,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 21:57:22,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 21:57:22,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 21:57:22,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 21:57:22,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 21:57:22,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 21:57:22,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 21:57:22,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 21:57:22,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 21:57:22,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 21:57:22,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 21:57:22,596 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 21:57:22,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 21:57:22,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 21:57:22,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 21:57:22,598 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 21:57:22,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 21:57:22,598 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 21:57:22,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 21:57:22,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 21:57:22,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 21:57:22,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 21:57:22,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 21:57:22,600 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 21:57:22,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 21:57:22,601 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 21:57:22,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 21:57:22,601 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 21:57:22,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 21:57:22,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 21:57:22,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 21:57:22,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 21:57:22,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 21:57:22,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:22,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 21:57:22,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 21:57:22,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 21:57:22,603 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 21:57:22,603 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 21:57:22,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 21:57:22,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 21:57:22,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 21:57:22,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcedd10b8fa79fdd7f584d24ebbda0efe903404a [2020-10-24 21:57:23,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 21:57:23,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 21:57:23,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 21:57:23,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 21:57:23,088 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 21:57:23,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-10-24 21:57:23,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b940aab/f98bd989478a48ce9c1221f1cb25555a/FLAG54ac542a0 [2020-10-24 21:57:23,786 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 21:57:23,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-10-24 21:57:23,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b940aab/f98bd989478a48ce9c1221f1cb25555a/FLAG54ac542a0 [2020-10-24 21:57:24,141 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10b940aab/f98bd989478a48ce9c1221f1cb25555a [2020-10-24 21:57:24,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 21:57:24,154 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 21:57:24,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:24,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 21:57:24,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 21:57:24,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,184 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@289ec100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24, skipping insertion in model container [2020-10-24 21:57:24,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 21:57:24,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 21:57:24,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:24,531 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 21:57:24,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 21:57:24,618 INFO L208 MainTranslator]: Completed translation [2020-10-24 21:57:24,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24 WrapperNode [2020-10-24 21:57:24,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 21:57:24,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:24,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 21:57:24,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 21:57:24,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 21:57:24,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 21:57:24,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 21:57:24,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 21:57:24,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,725 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... [2020-10-24 21:57:24,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 21:57:24,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 21:57:24,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 21:57:24,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 21:57:24,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 21:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 21:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 21:57:24,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 21:57:24,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 21:57:27,280 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 21:57:27,281 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 21:57:27,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:27 BoogieIcfgContainer [2020-10-24 21:57:27,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 21:57:27,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 21:57:27,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 21:57:27,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 21:57:27,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:57:24" (1/3) ... [2020-10-24 21:57:27,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab1252a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:27, skipping insertion in model container [2020-10-24 21:57:27,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:57:24" (2/3) ... [2020-10-24 21:57:27,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab1252a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:57:27, skipping insertion in model container [2020-10-24 21:57:27,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:27" (3/3) ... [2020-10-24 21:57:27,294 INFO L111 eAbstractionObserver]: Analyzing ICFG float20.i [2020-10-24 21:57:27,307 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 21:57:27,313 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-24 21:57:27,327 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-24 21:57:27,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 21:57:27,356 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 21:57:27,356 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 21:57:27,357 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 21:57:27,357 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 21:57:27,357 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 21:57:27,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 21:57:27,358 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 21:57:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-24 21:57:27,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 21:57:27,378 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:27,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:27,380 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:27,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:27,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-10-24 21:57:27,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:27,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66315719] [2020-10-24 21:57:27,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 21:57:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:27,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 21:57:27,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:27,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:27,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:27,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:27,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [66315719] [2020-10-24 21:57:27,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:27,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 21:57:27,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405535722] [2020-10-24 21:57:27,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 21:57:27,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:27,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 21:57:27,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 21:57:27,582 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-10-24 21:57:27,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:27,602 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2020-10-24 21:57:27,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 21:57:27,603 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-24 21:57:27,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:27,613 INFO L225 Difference]: With dead ends: 52 [2020-10-24 21:57:27,613 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 21:57:27,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 21:57:27,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 21:57:27,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 21:57:27,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 21:57:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-10-24 21:57:27,656 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2020-10-24 21:57:27,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:27,656 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-10-24 21:57:27,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 21:57:27,657 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-10-24 21:57:27,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 21:57:27,657 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:27,657 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:27,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 21:57:27,874 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:27,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:27,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-10-24 21:57:27,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:27,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305507848] [2020-10-24 21:57:27,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-24 21:57:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:28,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 21:57:28,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:28,448 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-10-24 21:57:28,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:28,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:29,019 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-10-24 21:57:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:29,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305507848] [2020-10-24 21:57:29,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:57:29,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-24 21:57:29,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389164148] [2020-10-24 21:57:29,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 21:57:29,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:57:29,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 21:57:29,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-24 21:57:29,463 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 8 states. [2020-10-24 21:57:29,953 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-10-24 21:57:32,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:57:32,774 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-24 21:57:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 21:57:32,780 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2020-10-24 21:57:32,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:57:32,780 INFO L225 Difference]: With dead ends: 22 [2020-10-24 21:57:32,780 INFO L226 Difference]: Without dead ends: 19 [2020-10-24 21:57:32,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-24 21:57:32,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-24 21:57:32,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-24 21:57:32,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-24 21:57:32,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-10-24 21:57:32,788 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 7 [2020-10-24 21:57:32,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:57:32,788 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-10-24 21:57:32,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 21:57:32,788 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-10-24 21:57:32,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 21:57:32,789 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:57:32,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:57:32,993 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 21:57:32,993 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:57:32,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:57:32,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1814045541, now seen corresponding path program 1 times [2020-10-24 21:57:32,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:57:32,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012730398] [2020-10-24 21:57:32,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-24 21:57:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:57:33,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 21:57:33,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:57:39,519 WARN L193 SmtUtils]: Spent 3.53 s on a formula simplification that was a NOOP. DAG size: 22 [2020-10-24 21:57:39,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:57:39,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:57:49,578 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification that was a NOOP. DAG size: 15 [2020-10-24 21:58:01,054 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification that was a NOOP. DAG size: 21 [2020-10-24 21:58:01,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:01,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012730398] [2020-10-24 21:58:01,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:58:01,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-24 21:58:01,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656462109] [2020-10-24 21:58:01,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 21:58:01,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:58:01,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 21:58:01,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=34, Unknown=2, NotChecked=0, Total=56 [2020-10-24 21:58:01,075 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 8 states. [2020-10-24 21:58:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:58:26,356 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-10-24 21:58:26,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 21:58:26,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-24 21:58:26,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:58:26,418 INFO L225 Difference]: With dead ends: 19 [2020-10-24 21:58:26,418 INFO L226 Difference]: Without dead ends: 16 [2020-10-24 21:58:26,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=20, Invalid=34, Unknown=2, NotChecked=0, Total=56 [2020-10-24 21:58:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-24 21:58:26,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-24 21:58:26,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-24 21:58:26,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-24 21:58:26,422 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-10-24 21:58:26,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:58:26,423 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-24 21:58:26,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 21:58:26,423 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-24 21:58:26,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 21:58:26,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 21:58:26,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 21:58:26,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 21:58:26,631 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 21:58:26,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 21:58:26,632 INFO L82 PathProgramCache]: Analyzing trace with hash 120341646, now seen corresponding path program 1 times [2020-10-24 21:58:26,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 21:58:26,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733463572] [2020-10-24 21:58:26,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-24 21:58:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 21:58:26,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 21:58:26,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 21:58:27,495 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-24 21:58:27,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:27,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 21:58:28,569 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-24 21:58:29,478 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-10-24 21:58:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 21:58:29,498 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733463572] [2020-10-24 21:58:29,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 21:58:29,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-10-24 21:58:29,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796181909] [2020-10-24 21:58:29,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 21:58:29,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 21:58:29,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 21:58:29,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-24 21:58:29,502 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 8 states. [2020-10-24 21:58:33,981 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-10-24 21:58:33,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 21:58:33,983 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-24 21:58:33,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 21:58:33,983 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-10-24 21:58:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 21:58:33,984 INFO L225 Difference]: With dead ends: 16 [2020-10-24 21:58:33,984 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 21:58:33,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-24 21:58:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 21:58:33,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 21:58:33,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 21:58:33,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 21:58:33,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-24 21:58:33,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 21:58:33,986 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 21:58:33,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 21:58:33,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 21:58:33,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 21:58:34,194 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 21:58:34,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 21:58:34,540 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-10-24 21:58:37,375 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification that was a NOOP. DAG size: 22 [2020-10-24 21:58:37,378 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-24 21:58:37,378 INFO L274 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-10-24 21:58:37,378 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,379 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-24 21:58:37,379 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 21:58:37,379 INFO L270 CegarLoopResult]: At program point L32-2(lines 26 35) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_bugBrokenOut_~min (_ FloatingPoint 8 24))) (and (= ULTIMATE.start_bugBrokenOut_~ulpdiff~1 ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_bugBrokenOut_~min) ((_ to_fp 11 53) currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))) (fp.eq ULTIMATE.start_bugBrokenOut_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0)))))) [2020-10-24 21:58:37,379 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 21:58:37,379 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 21:58:37,379 INFO L277 CegarLoopResult]: At program point L57(lines 47 58) the Hoare annotation is: true [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L270 CegarLoopResult]: At program point L21-2(lines 16 24) the Hoare annotation is: (and (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_bug_~min (_ FloatingPoint 8 24))) (and (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))) (= ULTIMATE.start_bug_~ulpdiff~0 (fp.mul currentRoundingMode ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32))))))))) [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L277 CegarLoopResult]: At program point L42-2(lines 37 45) the Hoare annotation is: true [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L13-6(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,380 INFO L274 CegarLoopResult]: For program point L13-7(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,381 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-24 21:58:37,381 INFO L274 CegarLoopResult]: For program point L13-8(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,381 INFO L274 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-10-24 21:58:37,381 INFO L274 CegarLoopResult]: For program point L13-10(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,381 INFO L274 CegarLoopResult]: For program point L13-11(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,381 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-24 21:58:37,393 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 21:58:37,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-10-24 21:58:37,394 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-10-24 21:58:37,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,396 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,397 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,398 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 21:58:37,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-10-24 21:58:37,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-10-24 21:58:37,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,401 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,402 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 21:58:37,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-10-24 21:58:37,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-10-24 21:58:37,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,405 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 21:58:37,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-10-24 21:58:37,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-10-24 21:58:37,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:58:37 BoogieIcfgContainer [2020-10-24 21:58:37,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 21:58:37,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 21:58:37,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 21:58:37,411 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 21:58:37,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:57:27" (3/4) ... [2020-10-24 21:58:37,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 21:58:37,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-24 21:58:37,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 21:58:37,427 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:58:37,428 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 21:58:37,455 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) [2020-10-24 21:58:37,456 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start_bugBrokenOut_~min : C_FLOAT :: ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) [2020-10-24 21:58:37,481 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 21:58:37,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 21:58:37,484 INFO L168 Benchmark]: Toolchain (without parser) took 73334.21 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 19.9 MB in the beginning and 28.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:37,485 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 44.0 MB. Free memory was 29.2 MB in the beginning and 29.2 MB in the end (delta: 23.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 21:58:37,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 463.96 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 19.3 MB in the beginning and 29.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:37,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.76 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 27.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:37,487 INFO L168 Benchmark]: Boogie Preprocessor took 41.05 ms. Allocated memory is still 56.6 MB. Free memory was 27.4 MB in the beginning and 39.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:37,488 INFO L168 Benchmark]: RCFGBuilder took 2552.85 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 26.1 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:37,489 INFO L168 Benchmark]: TraceAbstraction took 70124.75 ms. Allocated memory is still 56.6 MB. Free memory was 25.5 MB in the beginning and 32.0 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:37,489 INFO L168 Benchmark]: Witness Printer took 71.62 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 28.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 21:58:37,494 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 44.0 MB. Free memory was 29.2 MB in the beginning and 29.2 MB in the end (delta: 23.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 463.96 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 19.3 MB in the beginning and 29.0 MB in the end (delta: -9.7 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.76 ms. Allocated memory is still 56.6 MB. Free memory was 29.0 MB in the beginning and 27.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.05 ms. Allocated memory is still 56.6 MB. Free memory was 27.4 MB in the beginning and 39.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2552.85 ms. Allocated memory is still 56.6 MB. Free memory was 39.9 MB in the beginning and 26.1 MB in the end (delta: 13.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 70124.75 ms. Allocated memory is still 56.6 MB. Free memory was 25.5 MB in the beginning and 32.0 MB in the end (delta: -6.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * Witness Printer took 71.62 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 28.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant [2020-10-24 21:58:37,514 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 21:58:37,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-10-24 21:58:37,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-10-24 21:58:37,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,515 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 21:58:37,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-10-24 21:58:37,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-10-24 21:58:37,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,518 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) - InvariantResult [Line: 26]: Loop Invariant [2020-10-24 21:58:37,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 21:58:37,520 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-10-24 21:58:37,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-10-24 21:58:37,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 21:58:37,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-10-24 21:58:37,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-10-24 21:58:37,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 21:58:37,526 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start_bugBrokenOut_~min : C_FLOAT :: ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 66.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 33.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 26 SDslu, 28 SDs, 0 SdLazy, 101 SolverSat, 0 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 31.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 31.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 65 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 31.8s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 21 QuantifiedInterpolants, 6638 SizeOfPredicates, 15 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...