./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 ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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-ee8e70e [2020-10-24 14:16:13,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:13,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:13,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:13,777 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:13,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:13,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:13,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:13,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:13,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:13,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:13,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:13,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:13,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:13,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:13,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:13,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:13,797 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:13,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:13,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:13,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:13,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:13,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:13,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:13,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:13,812 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:13,812 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:13,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:13,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:13,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:13,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:13,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:13,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:13,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:13,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:13,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:13,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:13,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:13,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:13,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:13,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:13,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:16:13,880 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:13,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:13,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:13,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:13,883 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:13,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:13,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:13,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:16:13,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:13,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:13,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:13,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:13,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:13,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:13,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:13,886 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:13,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:13,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:13,887 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:13,887 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:13,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:13,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:13,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:13,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:13,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:13,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:16:13,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:16:13,890 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:13,890 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:13,890 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcedd10b8fa79fdd7f584d24ebbda0efe903404a [2020-10-24 14:16:14,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:14,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:14,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:14,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:14,331 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:14,333 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-10-24 14:16:14,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9eca6067/fcc2999b0e6a41df924ea2dc66ae3c21/FLAGf4e496f2a [2020-10-24 14:16:15,159 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:15,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-10-24 14:16:15,171 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9eca6067/fcc2999b0e6a41df924ea2dc66ae3c21/FLAGf4e496f2a [2020-10-24 14:16:15,481 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d9eca6067/fcc2999b0e6a41df924ea2dc66ae3c21 [2020-10-24 14:16:15,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:15,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:15,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:15,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:15,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:15,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:15,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49bc7f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15, skipping insertion in model container [2020-10-24 14:16:15,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:15,575 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:15,606 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:15,913 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:15,925 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:16:15,950 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:15,987 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:16:15,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15 WrapperNode [2020-10-24 14:16:15,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:15,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:15,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:16:15,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:16:16,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:16,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:16:16,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:16:16,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:16:16,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... [2020-10-24 14:16:16,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:16:16,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:16:16,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:16:16,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:16:16,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 14:16:16,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:16:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:16:16,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:16:16,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:16:16,624 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:16:16,625 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 14:16:16,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:16 BoogieIcfgContainer [2020-10-24 14:16:16,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:16:16,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:16:16,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:16:16,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:16:16,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:16:15" (1/3) ... [2020-10-24 14:16:16,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110503ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:16, skipping insertion in model container [2020-10-24 14:16:16,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:15" (2/3) ... [2020-10-24 14:16:16,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110503ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:16, skipping insertion in model container [2020-10-24 14:16:16,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:16" (3/3) ... [2020-10-24 14:16:16,637 INFO L111 eAbstractionObserver]: Analyzing ICFG float20.i [2020-10-24 14:16:16,653 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:16:16,659 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-24 14:16:16,676 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-24 14:16:16,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:16:16,709 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:16:16,709 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:16:16,709 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:16:16,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:16:16,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:16:16,710 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:16:16,710 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:16:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-24 14:16:16,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:16:16,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:16,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:16,749 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:16,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-10-24 14:16:16,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:16:16,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812476949] [2020-10-24 14:16:16,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:16:16,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:16,926 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 14:16:16,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812476949] [2020-10-24 14:16:16,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:16,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 14:16:16,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426875858] [2020-10-24 14:16:16,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 14:16:16,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 14:16:16,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 14:16:16,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 14:16:16,955 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-10-24 14:16:16,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:16,977 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2020-10-24 14:16:16,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 14:16:16,979 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-24 14:16:16,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:16,990 INFO L225 Difference]: With dead ends: 52 [2020-10-24 14:16:16,990 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 14:16:16,994 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 14:16:17,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 14:16:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 14:16:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 14:16:17,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-10-24 14:16:17,036 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2020-10-24 14:16:17,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:17,036 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-10-24 14:16:17,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 14:16:17,037 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-10-24 14:16:17,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:16:17,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:17,038 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:17,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:16:17,039 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:17,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:17,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-10-24 14:16:17,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:16:17,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253165588] [2020-10-24 14:16:17,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:16:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:16:17,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:16:17,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:16:17,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:16:17,108 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:16:17,109 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:16:17,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 14:16:17,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:16:17 BoogieIcfgContainer [2020-10-24 14:16:17,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:16:17,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:16:17,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:16:17,137 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:16:17,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:16" (3/4) ... [2020-10-24 14:16:17,143 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:16:17,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:16:17,146 INFO L168 Benchmark]: Toolchain (without parser) took 1654.97 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.9 MB in the beginning and 35.1 MB in the end (delta: -14.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:17,148 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.4 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:17,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 489.50 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.3 MB in the beginning and 38.4 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:17,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 54.5 MB. Free memory was 38.2 MB in the beginning and 36.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:17,151 INFO L168 Benchmark]: Boogie Preprocessor took 54.96 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 35.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:17,152 INFO L168 Benchmark]: RCFGBuilder took 523.33 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 36.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:17,153 INFO L168 Benchmark]: TraceAbstraction took 506.68 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 35.7 MB in the end (delta: 715.3 kB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:16:17,154 INFO L168 Benchmark]: Witness Printer took 6.41 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 35.1 MB in the end (delta: 291.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:16:17,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.4 MB in the end (delta: 52.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 489.50 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.3 MB in the beginning and 38.4 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 54.5 MB. Free memory was 38.2 MB in the beginning and 36.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.96 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 35.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 523.33 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 36.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 506.68 ms. Allocated memory is still 54.5 MB. Free memory was 36.4 MB in the beginning and 35.7 MB in the end (delta: 715.3 kB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.41 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 35.1 MB in the end (delta: 291.3 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 someBinaryArithmeticFLOAT_SMToperation at line 19, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 18, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 21. 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-ee8e70e [2020-10-24 14:16:19,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:16:19,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:16:20,020 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:16:20,021 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:16:20,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:16:20,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:16:20,027 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:16:20,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:16:20,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:16:20,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:16:20,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:16:20,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:16:20,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:16:20,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:16:20,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:16:20,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:16:20,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:16:20,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:16:20,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:16:20,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:16:20,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:16:20,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:16:20,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:16:20,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:16:20,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:16:20,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:16:20,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:16:20,067 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:16:20,068 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:16:20,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:16:20,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:16:20,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:16:20,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:16:20,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:16:20,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:16:20,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:16:20,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:16:20,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:16:20,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:16:20,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:16:20,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:16:20,111 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:16:20,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:16:20,115 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:16:20,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:16:20,117 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:16:20,117 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:16:20,118 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:16:20,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:16:20,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:16:20,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:16:20,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:16:20,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:16:20,120 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:16:20,121 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:16:20,121 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:16:20,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:16:20,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:16:20,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:16:20,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:16:20,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:16:20,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:16:20,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:16:20,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:16:20,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:16:20,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:16:20,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:16:20,125 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:16:20,126 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:16:20,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:16:20,126 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:16:20,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:16:20,127 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcedd10b8fa79fdd7f584d24ebbda0efe903404a [2020-10-24 14:16:20,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:16:20,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:16:20,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:16:20,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:16:20,644 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:16:20,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-10-24 14:16:20,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c991ba12/18934a6391414f70b3bfb2ce16ed64ac/FLAGd56cda98b [2020-10-24 14:16:21,367 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:16:21,368 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-10-24 14:16:21,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c991ba12/18934a6391414f70b3bfb2ce16ed64ac/FLAGd56cda98b [2020-10-24 14:16:21,724 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1c991ba12/18934a6391414f70b3bfb2ce16ed64ac [2020-10-24 14:16:21,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:16:21,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:16:21,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:21,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:16:21,742 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:16:21,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:21" (1/1) ... [2020-10-24 14:16:21,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b72e219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:21, skipping insertion in model container [2020-10-24 14:16:21,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:16:21" (1/1) ... [2020-10-24 14:16:21,758 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:16:21,782 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:16:21,993 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:22,019 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:16:22,073 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:16:22,111 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:16:22,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22 WrapperNode [2020-10-24 14:16:22,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:16:22,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:22,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:16:22,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:16:22,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,164 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:16:22,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:16:22,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:16:22,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:16:22,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... [2020-10-24 14:16:22,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:16:22,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:16:22,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:16:22,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:16:22,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 14:16:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:16:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:16:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:16:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:16:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:16:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 14:16:25,557 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:16:25,557 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 14:16:25,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:25 BoogieIcfgContainer [2020-10-24 14:16:25,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:16:25,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:16:25,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:16:25,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:16:25,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:16:21" (1/3) ... [2020-10-24 14:16:25,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235f6d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:25, skipping insertion in model container [2020-10-24 14:16:25,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:16:22" (2/3) ... [2020-10-24 14:16:25,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235f6d19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:16:25, skipping insertion in model container [2020-10-24 14:16:25,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:25" (3/3) ... [2020-10-24 14:16:25,569 INFO L111 eAbstractionObserver]: Analyzing ICFG float20.i [2020-10-24 14:16:25,582 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:16:25,588 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-24 14:16:25,602 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-24 14:16:25,631 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:16:25,632 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:16:25,632 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:16:25,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:16:25,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:16:25,633 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:16:25,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:16:25,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:16:25,648 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-24 14:16:25,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:16:25,654 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:25,654 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:25,655 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:25,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:25,662 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-10-24 14:16:25,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:25,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027392255] [2020-10-24 14:16:25,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:26,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 14:16:26,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:26,070 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 14:16:26,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:26,075 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 14:16:26,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027392255] [2020-10-24 14:16:26,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:16:26,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 14:16:26,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540364660] [2020-10-24 14:16:26,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 14:16:26,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:16:26,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 14:16:26,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 14:16:26,109 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-10-24 14:16:26,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:16:26,134 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2020-10-24 14:16:26,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 14:16:26,136 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-10-24 14:16:26,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:16:26,159 INFO L225 Difference]: With dead ends: 52 [2020-10-24 14:16:26,159 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 14:16:26,164 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 14:16:26,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 14:16:26,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 14:16:26,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 14:16:26,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-10-24 14:16:26,211 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2020-10-24 14:16:26,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:16:26,212 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-10-24 14:16:26,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 14:16:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-10-24 14:16:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:16:26,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:16:26,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:16:26,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:16:26,430 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:16:26,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:16:26,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-10-24 14:16:26,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:16:26,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892485564] [2020-10-24 14:16:26,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:16:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:16:26,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 9 conjunts are in the unsatisfiable core [2020-10-24 14:16:26,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:16:30,687 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 57 [2020-10-24 14:16:30,737 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 14:16:30,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:16:38,928 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 53 [2020-10-24 14:16:47,883 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-10-24 14:17:01,687 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification that was a NOOP. DAG size: 64 [2020-10-24 14:17:01,689 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 14:17:01,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892485564] [2020-10-24 14:17:01,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:01,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 14:17:01,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361673563] [2020-10-24 14:17:01,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 14:17:01,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:01,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 14:17:01,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=62, Unknown=3, NotChecked=0, Total=90 [2020-10-24 14:17:01,694 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 10 states. [2020-10-24 14:17:15,920 WARN L193 SmtUtils]: Spent 4.68 s on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 14:17:36,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:17:36,760 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-10-24 14:17:36,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 14:17:36,795 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 7 [2020-10-24 14:17:36,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:17:36,796 INFO L225 Difference]: With dead ends: 22 [2020-10-24 14:17:36,796 INFO L226 Difference]: Without dead ends: 19 [2020-10-24 14:17:36,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=33, Invalid=74, Unknown=3, NotChecked=0, Total=110 [2020-10-24 14:17:36,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-24 14:17:36,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-24 14:17:36,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-24 14:17:36,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-10-24 14:17:36,801 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 7 [2020-10-24 14:17:36,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:17:36,801 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-10-24 14:17:36,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 14:17:36,801 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-10-24 14:17:36,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 14:17:36,802 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:17:36,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:17:37,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:17:37,015 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:17:37,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:17:37,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1814045541, now seen corresponding path program 1 times [2020-10-24 14:17:37,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:17:37,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702349034] [2020-10-24 14:17:37,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:17:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:17:37,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-24 14:17:37,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:17:39,963 WARN L838 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) (fp ((_ extract 31 31) |c_ULTIMATE.start_bugBrokenOut_#t~nondet17|) ((_ extract 30 23) |c_ULTIMATE.start_bugBrokenOut_#t~nondet17|) ((_ extract 22 0) |c_ULTIMATE.start_bugBrokenOut_#t~nondet17|))) (exists ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7| (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5| (_ BitVec 64)) (ULTIMATE.start_bugBrokenOut_~dulpdiff~0 (_ BitVec 64)) (ULTIMATE.start_bugBrokenOut_~min (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5| (_ BitVec 64)) (ULTIMATE.start_bugBrokenOut_~modifier~1 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|))) (.cse5 (fp ((_ extract 63 63) ULTIMATE.start_bugBrokenOut_~dulpdiff~0) ((_ extract 62 52) ULTIMATE.start_bugBrokenOut_~dulpdiff~0) ((_ extract 51 0) ULTIMATE.start_bugBrokenOut_~dulpdiff~0))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|))) (.cse2 (fp ((_ extract 31 31) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) ULTIMATE.start_bugBrokenOut_~min))) (.cse4 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|))) (.cse7 (fp ((_ extract 31 31) ULTIMATE.start_bugBrokenOut_~modifier~1) ((_ extract 30 23) ULTIMATE.start_bugBrokenOut_~modifier~1) ((_ extract 22 0) ULTIMATE.start_bugBrokenOut_~modifier~1))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|)))) (and (= (fp.mul roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) .cse1) (= ((_ to_fp 11 53) roundNearestTiesToEven .cse2) .cse3) (= .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 340282366920938463463374607431768211456.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 8388608.0)) .cse0) (= .cse5 (fp.mul roundNearestTiesToEven .cse3 .cse6)) (= (fp ((_ extract 31 31) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1) ((_ extract 30 23) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1) ((_ extract 22 0) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1)) ((_ to_fp 8 24) roundNearestTiesToEven .cse5)) (= ((_ to_fp 11 53) roundNearestTiesToEven .cse7) .cse6) (fp.eq .cse2 .cse4) (= .cse7 ((_ to_fp 8 24) roundNearestTiesToEven .cse1)))))) is different from false [2020-10-24 14:17:40,601 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 14:17:40,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:17:42,724 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5 (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9| (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~modifier~1_3 (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3 (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|))) (.cse6 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 62 52) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 51 0) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) c_ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) c_ULTIMATE.start_bugBrokenOut_~min))))) (not (= (fp.mul c_~CRM .cse1 ((_ to_fp 11 53) c_~CRM (_ bv2 32))) .cse2)) (not (= .cse3 (fp.mul c_~CRM .cse0 .cse4))) (fp.eq .cse5 .cse6) (not (= ((_ to_fp 8 24) c_~CRM (/ 1.0 85070591730234615865843651857942052864.0)) .cse6)) (not (= ((_ to_fp 8 24) c_~CRM .cse3) .cse5)) (not (= .cse7 ((_ to_fp 8 24) c_~CRM .cse2))) (not (= ((_ to_fp 11 53) c_~CRM .cse7) .cse4)) (not (= .cse1 ((_ to_fp 11 53) c_~CRM (/ 1.0 8388608.0))))))) is different from false [2020-10-24 14:17:44,798 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5 (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9| (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~modifier~1_3 (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3 (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|))) (.cse6 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 62 52) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 51 0) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) c_ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) c_ULTIMATE.start_bugBrokenOut_~min))))) (not (= (fp.mul c_~CRM .cse1 ((_ to_fp 11 53) c_~CRM (_ bv2 32))) .cse2)) (not (= .cse3 (fp.mul c_~CRM .cse0 .cse4))) (fp.eq .cse5 .cse6) (not (= ((_ to_fp 8 24) c_~CRM (/ 1.0 85070591730234615865843651857942052864.0)) .cse6)) (not (= ((_ to_fp 8 24) c_~CRM .cse3) .cse5)) (not (= .cse7 ((_ to_fp 8 24) c_~CRM .cse2))) (not (= ((_ to_fp 11 53) c_~CRM .cse7) .cse4)) (not (= .cse1 ((_ to_fp 11 53) c_~CRM (/ 1.0 8388608.0))))))) is different from true [2020-10-24 14:17:46,951 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5 (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9| (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5| (_ BitVec 64)) (ULTIMATE.start_bugBrokenOut_~min (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~modifier~1_3 (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3 (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|))) (.cse7 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 62 52) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 51 0) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) ULTIMATE.start_bugBrokenOut_~min))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM .cse1))) (not (= (fp.mul c_~CRM .cse2 ((_ to_fp 11 53) c_~CRM (_ bv2 32))) .cse3)) (not (= .cse4 (fp.mul c_~CRM .cse0 .cse5))) (fp.eq .cse6 .cse7) (not (= ((_ to_fp 8 24) c_~CRM (/ 1.0 85070591730234615865843651857942052864.0)) .cse7)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse6)) (not (fp.eq .cse1 (fp ((_ extract 31 31) |c_ULTIMATE.start_bugBrokenOut_#t~nondet9|) ((_ extract 30 23) |c_ULTIMATE.start_bugBrokenOut_#t~nondet9|) ((_ extract 22 0) |c_ULTIMATE.start_bugBrokenOut_#t~nondet9|)))) (not (= .cse8 ((_ to_fp 8 24) c_~CRM .cse3))) (not (= ((_ to_fp 11 53) c_~CRM .cse8) .cse5)) (not (= .cse2 ((_ to_fp 11 53) c_~CRM (/ 1.0 8388608.0))))))) is different from false [2020-10-24 14:17:49,010 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5 (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9| (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5| (_ BitVec 64)) (ULTIMATE.start_bugBrokenOut_~min (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~modifier~1_3 (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3 (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|))) (.cse7 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 62 52) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 51 0) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) ULTIMATE.start_bugBrokenOut_~min))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM .cse1))) (not (= (fp.mul c_~CRM .cse2 ((_ to_fp 11 53) c_~CRM (_ bv2 32))) .cse3)) (not (= .cse4 (fp.mul c_~CRM .cse0 .cse5))) (fp.eq .cse6 .cse7) (not (= ((_ to_fp 8 24) c_~CRM (/ 1.0 85070591730234615865843651857942052864.0)) .cse7)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse6)) (not (fp.eq .cse1 (fp ((_ extract 31 31) |c_ULTIMATE.start_bugBrokenOut_#t~nondet9|) ((_ extract 30 23) |c_ULTIMATE.start_bugBrokenOut_#t~nondet9|) ((_ extract 22 0) |c_ULTIMATE.start_bugBrokenOut_#t~nondet9|)))) (not (= .cse8 ((_ to_fp 8 24) c_~CRM .cse3))) (not (= ((_ to_fp 11 53) c_~CRM .cse8) .cse5)) (not (= .cse2 ((_ to_fp 11 53) c_~CRM (/ 1.0 8388608.0))))))) is different from true [2020-10-24 14:17:51,709 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5 (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9| (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet9_9| (_ BitVec 32)) (ULTIMATE.start_bugBrokenOut_~min (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~modifier~1_3 (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3 (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|))) (.cse7 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) ULTIMATE.start_bugBrokenOut_~min))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 62 52) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 51 0) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5))) (.cse8 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_9|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_9|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_9|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|))) (.cse9 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM .cse1))) (not (= (fp.mul c_~CRM .cse2 ((_ to_fp 11 53) c_~CRM (_ bv2 32))) .cse3)) (not (= .cse4 (fp.mul c_~CRM .cse0 .cse5))) (fp.eq .cse6 .cse7) (not (= ((_ to_fp 8 24) c_~CRM (/ 1.0 85070591730234615865843651857942052864.0)) .cse7)) (not (fp.eq .cse1 .cse8)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse6)) (not (= ((_ to_fp 8 24) c_~CRM (/ 16777215.0 340282366920938463463374607431768211456.0)) .cse8)) (not (= .cse9 ((_ to_fp 8 24) c_~CRM .cse3))) (not (= ((_ to_fp 11 53) c_~CRM .cse9) .cse5)) (not (= .cse2 ((_ to_fp 11 53) c_~CRM (/ 1.0 8388608.0))))))) is different from true [2020-10-24 14:17:51,870 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 14:17:51,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702349034] [2020-10-24 14:17:51,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:17:51,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 14:17:51,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173449431] [2020-10-24 14:17:51,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 14:17:51,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:17:51,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 14:17:51,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=21, Unknown=6, NotChecked=44, Total=90 [2020-10-24 14:17:51,874 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 10 states. [2020-10-24 14:18:05,251 WARN L193 SmtUtils]: Spent 4.46 s on a formula simplification. DAG size of input: 91 DAG size of output: 3 [2020-10-24 14:18:19,844 WARN L193 SmtUtils]: Spent 8.30 s on a formula simplification that was a NOOP. DAG size: 90 [2020-10-24 14:18:23,531 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5 (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9| (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5| (_ BitVec 64)) (v_ULTIMATE.start_bugBrokenOut_~modifier~1_3 (_ BitVec 32)) (v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3 (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|))) (.cse6 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet17_9|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 62 52) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3) ((_ extract 51 0) v_ULTIMATE.start_bugBrokenOut_~dulpdiff~0_3))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~ulpdiff~1_5))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 30 23) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3) ((_ extract 22 0) v_ULTIMATE.start_bugBrokenOut_~modifier~1_3))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) c_ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) c_ULTIMATE.start_bugBrokenOut_~min))))) (not (= (fp.mul c_~CRM .cse1 ((_ to_fp 11 53) c_~CRM (_ bv2 32))) .cse2)) (not (= .cse3 (fp.mul c_~CRM .cse0 .cse4))) (fp.eq .cse5 .cse6) (not (= ((_ to_fp 8 24) c_~CRM (/ 1.0 85070591730234615865843651857942052864.0)) .cse6)) (not (= ((_ to_fp 8 24) c_~CRM .cse3) .cse5)) (not (= .cse7 ((_ to_fp 8 24) c_~CRM .cse2))) (not (= ((_ to_fp 11 53) c_~CRM .cse7) .cse4)) (not (= .cse1 ((_ to_fp 11 53) c_~CRM (/ 1.0 8388608.0))))))) (exists ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7| (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|)))) (and (= .cse8 ((_ to_fp 8 24) c_~CRM (/ 16777215.0 340282366920938463463374607431768211456.0))) (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) c_ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) c_ULTIMATE.start_bugBrokenOut_~min)) .cse8))))) is different from true [2020-10-24 14:18:25,597 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp ((_ extract 31 31) |c_ULTIMATE.start_bugBrokenOut_#t~nondet17|) ((_ extract 30 23) |c_ULTIMATE.start_bugBrokenOut_#t~nondet17|) ((_ extract 22 0) |c_ULTIMATE.start_bugBrokenOut_#t~nondet17|)))) (and (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1) ((_ extract 30 23) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1) ((_ extract 22 0) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1)) .cse0) (= ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 85070591730234615865843651857942052864.0)) .cse0) (exists ((|v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5| (_ BitVec 64)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7| (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5| (_ BitVec 64)) (ULTIMATE.start_bugBrokenOut_~dulpdiff~0 (_ BitVec 64)) (ULTIMATE.start_bugBrokenOut_~min (_ BitVec 32)) (|v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5| (_ BitVec 64)) (ULTIMATE.start_bugBrokenOut_~modifier~1 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet10_5|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet13_5|))) (.cse6 (fp ((_ extract 63 63) ULTIMATE.start_bugBrokenOut_~dulpdiff~0) ((_ extract 62 52) ULTIMATE.start_bugBrokenOut_~dulpdiff~0) ((_ extract 51 0) ULTIMATE.start_bugBrokenOut_~dulpdiff~0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet14_5|))) (.cse3 (fp ((_ extract 31 31) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 30 23) ULTIMATE.start_bugBrokenOut_~min) ((_ extract 22 0) ULTIMATE.start_bugBrokenOut_~min))) (.cse5 (fp ((_ extract 31 31) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|) ((_ extract 30 23) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|) ((_ extract 22 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet9_7|))) (.cse8 (fp ((_ extract 31 31) ULTIMATE.start_bugBrokenOut_~modifier~1) ((_ extract 30 23) ULTIMATE.start_bugBrokenOut_~modifier~1) ((_ extract 22 0) ULTIMATE.start_bugBrokenOut_~modifier~1))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 62 52) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|) ((_ extract 51 0) |v_ULTIMATE.start_bugBrokenOut_#t~nondet11_5|)))) (and (= (fp.mul roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32))) .cse2) (= ((_ to_fp 11 53) roundNearestTiesToEven .cse3) .cse4) (= .cse5 ((_ to_fp 8 24) roundNearestTiesToEven (/ 16777215.0 340282366920938463463374607431768211456.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 8388608.0)) .cse1) (= .cse6 (fp.mul roundNearestTiesToEven .cse4 .cse7)) (= (fp ((_ extract 31 31) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1) ((_ extract 30 23) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1) ((_ extract 22 0) c_ULTIMATE.start_bugBrokenOut_~ulpdiff~1)) ((_ to_fp 8 24) roundNearestTiesToEven .cse6)) (= ((_ to_fp 11 53) roundNearestTiesToEven .cse8) .cse7) (fp.eq .cse3 .cse5) (= .cse8 ((_ to_fp 8 24) roundNearestTiesToEven .cse2))))))) is different from false [2020-10-24 14:18:25,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:18:25,768 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-10-24 14:18:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 14:18:25,776 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-10-24 14:18:25,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:18:25,776 INFO L225 Difference]: With dead ends: 19 [2020-10-24 14:18:25,777 INFO L226 Difference]: Without dead ends: 16 [2020-10-24 14:18:25,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 44.6s TimeCoverageRelationStatistics Valid=31, Invalid=37, Unknown=12, NotChecked=102, Total=182 [2020-10-24 14:18:25,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-24 14:18:25,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-10-24 14:18:25,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-24 14:18:25,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-10-24 14:18:25,781 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-10-24 14:18:25,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:18:25,782 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-10-24 14:18:25,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 14:18:25,782 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-10-24 14:18:25,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 14:18:25,783 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:18:25,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:18:25,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:18:25,993 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:18:25,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:18:25,994 INFO L82 PathProgramCache]: Analyzing trace with hash 120341646, now seen corresponding path program 1 times [2020-10-24 14:18:25,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:18:25,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040323249] [2020-10-24 14:18:25,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 14:18:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:18:26,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-24 14:18:26,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:18:27,278 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-24 14:18:27,324 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 14:18:27,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:18:29,568 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-10-24 14:18:31,717 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-10-24 14:18:33,830 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-10-24 14:18:33,861 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 14:18:33,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040323249] [2020-10-24 14:18:33,862 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:18:33,862 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-10-24 14:18:33,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291075747] [2020-10-24 14:18:33,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 14:18:33,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:18:33,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 14:18:33,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-24 14:18:33,865 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 10 states. [2020-10-24 14:18:38,895 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-10-24 14:18:38,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:18:38,897 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-10-24 14:18:38,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 14:18:38,897 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2020-10-24 14:18:38,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:18:38,897 INFO L225 Difference]: With dead ends: 16 [2020-10-24 14:18:38,897 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:18:38,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-24 14:18:38,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:18:38,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:18:38,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:18:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:18:38,899 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-10-24 14:18:38,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:18:38,899 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:18:38,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 14:18:38,899 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:18:38,899 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:18:39,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 14:18:39,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:18:39,165 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-24 14:18:39,165 INFO L274 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-10-24 14:18:39,165 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,165 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-10-24 14:18:39,165 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:18:39,166 INFO L270 CegarLoopResult]: At program point L32-2(lines 26 35) the Hoare annotation is: (= roundNearestTiesToEven ~CRM) [2020-10-24 14:18:39,166 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:18:39,166 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:18:39,166 INFO L277 CegarLoopResult]: At program point L57(lines 47 58) the Hoare annotation is: true [2020-10-24 14:18:39,167 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,167 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:18:39,167 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-10-24 14:18:39,167 INFO L270 CegarLoopResult]: At program point L21-2(lines 16 24) the Hoare annotation is: (= roundNearestTiesToEven ~CRM) [2020-10-24 14:18:39,167 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-10-24 14:18:39,167 INFO L274 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-10-24 14:18:39,167 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,167 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,167 INFO L274 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,168 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-24 14:18:39,168 INFO L274 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,168 INFO L277 CegarLoopResult]: At program point L42-2(lines 37 45) the Hoare annotation is: true [2020-10-24 14:18:39,168 INFO L274 CegarLoopResult]: For program point L13-6(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,168 INFO L274 CegarLoopResult]: For program point L13-7(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,168 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-10-24 14:18:39,168 INFO L274 CegarLoopResult]: For program point L13-8(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,168 INFO L274 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-10-24 14:18:39,168 INFO L274 CegarLoopResult]: For program point L13-10(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,169 INFO L274 CegarLoopResult]: For program point L13-11(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,169 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-10-24 14:18:39,183 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:39,186 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:39,188 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:39,189 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:39,190 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:39,190 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:39,192 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:39,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:39,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:18:39 BoogieIcfgContainer [2020-10-24 14:18:39,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:18:39,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:18:39,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:18:39,197 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:18:39,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:16:25" (3/4) ... [2020-10-24 14:18:39,213 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:18:39,233 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-24 14:18:39,234 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:18:39,234 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:18:39,235 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:18:39,327 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:18:39,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:18:39,329 INFO L168 Benchmark]: Toolchain (without parser) took 137599.87 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 25.0 MB in the end (delta: 4.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:39,330 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 22.5 MB in the beginning and 22.5 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:18:39,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.85 ms. Allocated memory is still 44.0 MB. Free memory was 28.4 MB in the beginning and 27.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:39,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.94 ms. Allocated memory is still 44.0 MB. Free memory was 27.0 MB in the beginning and 25.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:18:39,332 INFO L168 Benchmark]: Boogie Preprocessor took 37.84 ms. Allocated memory is still 44.0 MB. Free memory was 25.2 MB in the beginning and 23.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:39,332 INFO L168 Benchmark]: RCFGBuilder took 3355.37 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 27.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:39,333 INFO L168 Benchmark]: TraceAbstraction took 133635.31 ms. Allocated memory is still 44.0 MB. Free memory was 27.2 MB in the beginning and 16.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:39,333 INFO L168 Benchmark]: Witness Printer took 131.25 ms. Allocated memory is still 44.0 MB. Free memory was 16.2 MB in the beginning and 25.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:18:39,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 35.7 MB. Free memory was 22.5 MB in the beginning and 22.5 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.85 ms. Allocated memory is still 44.0 MB. Free memory was 28.4 MB in the beginning and 27.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.94 ms. Allocated memory is still 44.0 MB. Free memory was 27.0 MB in the beginning and 25.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.84 ms. Allocated memory is still 44.0 MB. Free memory was 25.2 MB in the beginning and 23.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3355.37 ms. Allocated memory is still 44.0 MB. Free memory was 23.8 MB in the beginning and 27.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 133635.31 ms. Allocated memory is still 44.0 MB. Free memory was 27.2 MB in the beginning and 16.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. * Witness Printer took 131.25 ms. Allocated memory is still 44.0 MB. Free memory was 16.2 MB in the beginning and 25.0 MB in the end (delta: -8.8 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable ~CRM - GenericResult: Unfinished Backtranslation unknown boogie variable ~CRM - GenericResult: Unfinished Backtranslation unknown boogie variable ~CRM - GenericResult: Unfinished Backtranslation unknown boogie variable ~CRM * 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 14:18:39,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:39,347 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:39,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:39,348 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM Derived loop invariant: ~roundNearestTiesToEven == unknown-~CRM-unknown - InvariantResult [Line: 26]: Loop Invariant [2020-10-24 14:18:39,349 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:39,349 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM [2020-10-24 14:18:39,349 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 14:18:39,349 WARN L1295 BoogieBacktranslator]: unknown boogie variable ~CRM Derived loop invariant: ~roundNearestTiesToEven == unknown-~CRM-unknown - 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: 133.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 74.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 7 SDslu, 127 SDs, 0 SdLazy, 92 SolverSat, 4 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 32.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 95.2s 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, 8 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 56.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 27 QuantifiedInterpolants, 31532 SizeOfPredicates, 15 NumberOfNonLiveVariables, 160 ConjunctsInSsa, 28 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...