./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c --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-esbmc-regression/Double_div.i.p+cfa-reducer.c -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 fb5ab7eb36d10dfdf42ecc1671ac3f1599a6bed2 ............................................................................................................................................................................................................................................. 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-esbmc-regression/Double_div.i.p+cfa-reducer.c -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 fb5ab7eb36d10dfdf42ecc1671ac3f1599a6bed2 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 14:47:56,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:47:56,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:47:56,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:47:56,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:47:56,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:47:56,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:47:56,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:47:56,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:47:56,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:47:56,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:47:56,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:47:56,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:47:56,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:47:56,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:47:56,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:47:56,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:47:56,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:47:56,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:47:56,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:47:56,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:47:56,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:47:56,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:47:56,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:47:56,559 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:47:56,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:47:56,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:47:56,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:47:56,564 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:47:56,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:47:56,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:47:56,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:47:56,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:47:56,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:47:56,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:47:56,572 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:47:56,573 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:47:56,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:47:56,574 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:47:56,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:47:56,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:47:56,578 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 14:47:56,631 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:47:56,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:47:56,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:47:56,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:47:56,635 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:47:56,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:47:56,636 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:47:56,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:47:56,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:47:56,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:47:56,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:47:56,638 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:47:56,638 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:47:56,639 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:47:56,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:47:56,639 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:47:56,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:47:56,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:47:56,640 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:47:56,640 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:47:56,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:47:56,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:47:56,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:47:56,642 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:47:56,642 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:47:56,642 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:47:56,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:47:56,643 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:47:56,643 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:47:56,643 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb5ab7eb36d10dfdf42ecc1671ac3f1599a6bed2 [2020-10-24 14:47:57,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:47:57,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:47:57,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:47:57,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:47:57,162 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:47:57,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c [2020-10-24 14:47:57,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2774578/1d493b20e367402b9fddea307d4b4810/FLAG02b09729b [2020-10-24 14:47:57,914 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:47:57,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c [2020-10-24 14:47:57,923 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2774578/1d493b20e367402b9fddea307d4b4810/FLAG02b09729b [2020-10-24 14:47:58,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ea2774578/1d493b20e367402b9fddea307d4b4810 [2020-10-24 14:47:58,290 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:47:58,297 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:47:58,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:47:58,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:47:58,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:47:58,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58, skipping insertion in model container [2020-10-24 14:47:58,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,322 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:47:58,341 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:47:58,527 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:47:58,539 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:47:58,556 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:47:58,572 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:47:58,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58 WrapperNode [2020-10-24 14:47:58,573 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:47:58,575 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:47:58,575 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:47:58,575 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:47:58,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:47:58,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:47:58,613 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:47:58,613 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:47:58,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (1/1) ... [2020-10-24 14:47:58,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:47:58,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:47:58,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:47:58,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:47:58,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (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 14:47:58,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:47:58,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:47:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:47:58,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:47:59,066 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:47:59,067 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 14:47:59,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:59 BoogieIcfgContainer [2020-10-24 14:47:59,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:47:59,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:47:59,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:47:59,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:47:59,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:47:58" (1/3) ... [2020-10-24 14:47:59,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49507c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:47:59, skipping insertion in model container [2020-10-24 14:47:59,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:47:58" (2/3) ... [2020-10-24 14:47:59,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49507c1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:47:59, skipping insertion in model container [2020-10-24 14:47:59,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:59" (3/3) ... [2020-10-24 14:47:59,091 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div.i.p+cfa-reducer.c [2020-10-24 14:47:59,112 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:47:59,117 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:47:59,133 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:47:59,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:47:59,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:47:59,181 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:47:59,181 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:47:59,181 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:47:59,182 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:47:59,182 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:47:59,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:47:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 14:47:59,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:47:59,206 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:47:59,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:47:59,207 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:47:59,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:47:59,216 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-10-24 14:47:59,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:47:59,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351024967] [2020-10-24 14:47:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:47:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:47:59,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:47:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:47:59,465 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:47:59,498 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:47:59,500 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:47:59,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:47:59,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:47:59 BoogieIcfgContainer [2020-10-24 14:47:59,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:47:59,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:47:59,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:47:59,544 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:47:59,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:47:59" (3/4) ... [2020-10-24 14:47:59,549 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:47:59,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:47:59,554 INFO L168 Benchmark]: Toolchain (without parser) took 1259.28 ms. Allocated memory is still 52.4 MB. Free memory was 29.7 MB in the beginning and 33.2 MB in the end (delta: -3.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:47:59,557 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 41.9 MB. Free memory was 21.8 MB in the beginning and 21.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:47:59,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.50 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 31.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:59,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.27 ms. Allocated memory is still 52.4 MB. Free memory was 31.0 MB in the beginning and 29.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:59,563 INFO L168 Benchmark]: Boogie Preprocessor took 20.74 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 28.7 MB in the end (delta: 872.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:47:59,565 INFO L168 Benchmark]: RCFGBuilder took 434.51 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 32.0 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:47:59,566 INFO L168 Benchmark]: TraceAbstraction took 469.70 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 33.5 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:47:59,567 INFO L168 Benchmark]: Witness Printer took 7.26 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 33.2 MB in the end (delta: 247.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:47:59,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 41.9 MB. Free memory was 21.8 MB in the beginning and 21.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.50 ms. Allocated memory is still 52.4 MB. Free memory was 29.1 MB in the beginning and 31.0 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.27 ms. Allocated memory is still 52.4 MB. Free memory was 31.0 MB in the beginning and 29.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.74 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 28.7 MB in the end (delta: 872.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 434.51 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 32.0 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 469.70 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 33.5 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.26 ms. Allocated memory is still 52.4 MB. Free memory was 33.5 MB in the beginning and 33.2 MB in the end (delta: 247.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 10, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 12. Possible FailurePath: [L1] int __return_main; VAL [__return_main=0] [L9] double main__x = 1.0; [L10] double main__x1 = main__x / 2.5; VAL [__return_main=0] [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0] [L25] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0] [L4] __assert_fail("0", "Double_div.i.p+cfa-reducer.c", 4, "reach_error") VAL [__return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 14:48:02,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:48:02,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:48:02,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:48:02,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:48:02,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:48:02,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:48:02,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:48:02,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:48:02,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:48:02,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:48:02,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:48:02,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:48:02,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:48:02,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:48:02,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:48:02,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:48:02,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:48:02,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:48:02,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:48:02,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:48:02,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:48:02,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:48:02,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:48:02,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:48:02,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:48:02,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:48:02,370 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:48:02,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:48:02,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:48:02,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:48:02,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:48:02,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:48:02,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:48:02,377 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:48:02,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:48:02,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:48:02,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:48:02,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:48:02,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:48:02,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:48:02,383 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 14:48:02,411 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:48:02,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:48:02,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:48:02,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:48:02,414 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:48:02,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:48:02,415 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:48:02,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:48:02,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:48:02,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:48:02,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:48:02,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:48:02,417 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:48:02,417 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:48:02,417 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:48:02,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:48:02,418 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:48:02,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:48:02,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:48:02,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:48:02,419 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:48:02,419 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:48:02,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:48:02,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:48:02,420 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:48:02,420 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:48:02,420 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:48:02,421 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:48:02,421 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:48:02,421 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:48:02,421 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:48:02,422 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb5ab7eb36d10dfdf42ecc1671ac3f1599a6bed2 [2020-10-24 14:48:02,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:48:02,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:48:02,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:48:02,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:48:02,934 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:48:02,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c [2020-10-24 14:48:03,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4c7caa34/9dd84b5ffd1a49529c161ad39eea3533/FLAG829438886 [2020-10-24 14:48:03,593 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:48:03,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div.i.p+cfa-reducer.c [2020-10-24 14:48:03,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4c7caa34/9dd84b5ffd1a49529c161ad39eea3533/FLAG829438886 [2020-10-24 14:48:03,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f4c7caa34/9dd84b5ffd1a49529c161ad39eea3533 [2020-10-24 14:48:03,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:48:03,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:48:03,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:48:03,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:48:03,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:48:03,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:48:03" (1/1) ... [2020-10-24 14:48:03,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17797075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:03, skipping insertion in model container [2020-10-24 14:48:03,940 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:48:03" (1/1) ... [2020-10-24 14:48:03,949 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:48:03,965 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:48:04,136 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:48:04,158 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:48:04,183 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:48:04,203 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:48:04,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04 WrapperNode [2020-10-24 14:48:04,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:48:04,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:48:04,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:48:04,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:48:04,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:48:04,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:48:04,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:48:04,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:48:04,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (1/1) ... [2020-10-24 14:48:04,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:48:04,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:48:04,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:48:04,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:48:04,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (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 14:48:04,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:48:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:48:04,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:48:04,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:48:04,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:48:06,399 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:48:06,408 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-24 14:48:06,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:48:06 BoogieIcfgContainer [2020-10-24 14:48:06,414 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:48:06,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:48:06,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:48:06,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:48:06,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:48:03" (1/3) ... [2020-10-24 14:48:06,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34737d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:48:06, skipping insertion in model container [2020-10-24 14:48:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:48:04" (2/3) ... [2020-10-24 14:48:06,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34737d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:48:06, skipping insertion in model container [2020-10-24 14:48:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:48:06" (3/3) ... [2020-10-24 14:48:06,439 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div.i.p+cfa-reducer.c [2020-10-24 14:48:06,475 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:48:06,490 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:48:06,528 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:48:06,584 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:48:06,585 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:48:06,585 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:48:06,585 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:48:06,585 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:48:06,586 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:48:06,586 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:48:06,586 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:48:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 14:48:06,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:48:06,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:48:06,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:48:06,608 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:48:06,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:48:06,616 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-10-24 14:48:06,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:48:06,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266382867] [2020-10-24 14:48:06,631 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 14:48:07,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:48:07,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:48:07,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:48:09,901 WARN L838 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (exists ((|v_ULTIMATE.start_main_#t~nondet8_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse0))))) is different from false [2020-10-24 14:48:09,931 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 14:48:09,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:48:12,182 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x~0_7 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_7 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_7))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_7))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_6|)))) (or (not (= .cse0 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= .cse1 (fp.div c_~CRM .cse0 .cse2))) (not (fp.eq .cse1 .cse0)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2))))) is different from true [2020-10-24 14:48:12,184 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 14:48:12,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266382867] [2020-10-24 14:48:12,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:48:12,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:48:12,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445799938] [2020-10-24 14:48:12,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:48:12,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:48:12,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:48:12,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=10, Total=30 [2020-10-24 14:48:12,210 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-24 14:48:15,998 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (and (= roundNearestTiesToEven c_~CRM) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse0)) (exists ((|v_ULTIMATE.start_main_#t~nondet8_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse1)))))) is different from false [2020-10-24 14:48:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:48:20,588 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2020-10-24 14:48:20,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:48:20,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-10-24 14:48:20,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:48:20,601 INFO L225 Difference]: With dead ends: 17 [2020-10-24 14:48:20,601 INFO L226 Difference]: Without dead ends: 7 [2020-10-24 14:48:20,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=11, Invalid=10, Unknown=3, NotChecked=18, Total=42 [2020-10-24 14:48:20,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-10-24 14:48:20,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-10-24 14:48:20,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-24 14:48:20,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-10-24 14:48:20,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2020-10-24 14:48:20,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:48:20,644 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-10-24 14:48:20,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:48:20,645 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-10-24 14:48:20,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-24 14:48:20,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:48:20,645 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-24 14:48:20,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:48:20,860 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:48:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:48:20,863 INFO L82 PathProgramCache]: Analyzing trace with hash 889537510, now seen corresponding path program 1 times [2020-10-24 14:48:20,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:48:20,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170429420] [2020-10-24 14:48:20,865 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 14:48:22,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:48:22,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 14:48:22,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:48:24,997 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1))))) is different from false [2020-10-24 14:48:27,426 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse0)))) (exists ((v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_8)))) (and (= (fp.div roundNearestTiesToEven .cse1 .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse2) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1))))) is different from false [2020-10-24 14:48:27,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-10-24 14:48:27,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:48:29,709 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0))))) is different from false [2020-10-24 14:48:33,851 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x1~0_10 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_10 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_10))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_10))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (or (not (= .cse0 .cse1)) (not (= (fp.div c_~CRM .cse2 .cse1) .cse3)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4)) (not (fp.eq .cse3 .cse2)) (not (= .cse2 (fp.div c_~CRM .cse4 .cse5))) (not (= .cse0 .cse5))))) is different from true [2020-10-24 14:48:33,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-10-24 14:48:33,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170429420] [2020-10-24 14:48:33,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-24 14:48:33,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-24 14:48:33,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546500027] [2020-10-24 14:48:33,855 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 14:48:33,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:48:33,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 14:48:33,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=11, Unknown=4, NotChecked=28, Total=56 [2020-10-24 14:48:33,857 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2020-10-24 14:48:38,802 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 49 [2020-10-24 14:48:41,721 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0))))) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse3 .cse4)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse3) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse4)))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))) is different from false [2020-10-24 14:48:43,915 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_9)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0))))) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse3 .cse4)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse3) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse4)))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))) is different from true [2020-10-24 14:48:46,347 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|)))) (and (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse0)))) (exists ((v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_8|))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_8)))) (and (= (fp.div roundNearestTiesToEven .cse1 .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse2) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1)))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))))) is different from false [2020-10-24 14:48:49,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:48:49,629 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-10-24 14:48:49,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:48:49,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2020-10-24 14:48:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:48:49,631 INFO L225 Difference]: With dead ends: 11 [2020-10-24 14:48:49,631 INFO L226 Difference]: Without dead ends: 8 [2020-10-24 14:48:49,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=20, Invalid=16, Unknown=8, NotChecked=66, Total=110 [2020-10-24 14:48:49,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-24 14:48:49,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-24 14:48:49,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-24 14:48:49,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-10-24 14:48:49,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-10-24 14:48:49,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:48:49,636 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-10-24 14:48:49,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 14:48:49,637 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-10-24 14:48:49,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-24 14:48:49,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:48:49,637 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-10-24 14:48:49,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:48:49,839 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:48:49,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:48:49,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1805796550, now seen corresponding path program 2 times [2020-10-24 14:48:49,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:48:49,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961760917] [2020-10-24 14:48:49,842 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 14:48:52,590 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-24 14:48:52,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:48:52,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-24 14:48:52,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:48:55,125 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1))))) is different from false [2020-10-24 14:48:57,597 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse2) (= .cse3 .cse1) (= (fp.div c_~CRM .cse2 .cse4) .cse0) (= .cse3 .cse4))))) is different from false [2020-10-24 14:49:00,496 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= .cse0 (fp.div c_~CRM .cse1 .cse2)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1) (= (fp.div c_~CRM .cse0 .cse3) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse4 .cse3) (= .cse4 .cse2)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse5) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse5)))))) is different from false [2020-10-24 14:49:00,547 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 14:49:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-10-24 14:49:05,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:49:05,920 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 14:49:08,157 WARN L860 $PredicateComparison]: unable to prove that (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= .cse1 (fp.div c_~CRM .cse2 .cse0))))))) is different from true [2020-10-24 14:49:10,627 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= .cse0 .cse1)) (not (= .cse0 .cse2)) (not (fp.eq .cse3 .cse4)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse2) .cse4)) (fp.eq .cse4 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse3 (fp.div c_~CRM .cse4 .cse1)))))) is different from true [2020-10-24 14:49:13,497 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_15 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_15 (_ BitVec 64))) (let ((.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_15))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse7 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_15))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14)))) (or (not (= .cse0 .cse1)) (not (= .cse0 .cse2)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse3)) (not (= .cse0 .cse4)) (not (fp.eq .cse5 .cse6)) (not (= (fp.div c_~CRM .cse3 .cse1) .cse7)) (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse5 (fp.div c_~CRM .cse6 .cse2))) (not (= (fp.div c_~CRM .cse7 .cse4) .cse6))))) is different from true [2020-10-24 14:49:13,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-10-24 14:49:13,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961760917] [2020-10-24 14:49:13,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-24 14:49:13,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2020-10-24 14:49:13,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316837540] [2020-10-24 14:49:13,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 14:49:13,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:49:13,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 14:49:13,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=19, Unknown=6, NotChecked=66, Total=110 [2020-10-24 14:49:13,504 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2020-10-24 14:49:19,398 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification that was a NOOP. DAG size: 67 [2020-10-24 14:49:21,655 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1)))) (forall ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse2 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= .cse2 .cse3)) (not (= .cse2 .cse4)) (not (fp.eq .cse5 .cse6)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse4) .cse6)) (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse5 (fp.div c_~CRM .cse6 .cse3)))))) (let ((.cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (or (fp.eq .cse7 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse7))))) is different from false [2020-10-24 14:49:24,120 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= .cse1 (fp.div c_~CRM .cse2 .cse0))))))) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= (fp.div c_~CRM .cse3 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse5) (= .cse6 .cse4) (= (fp.div c_~CRM .cse5 .cse7) .cse3) (= .cse6 .cse7))))) is different from false [2020-10-24 14:49:26,318 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)) (not (fp.eq .cse1 .cse2)) (not (= .cse1 (fp.div c_~CRM .cse2 .cse0))))))) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= (fp.div c_~CRM .cse3 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse5) (= .cse6 .cse4) (= (fp.div c_~CRM .cse5 .cse7) .cse3) (= .cse6 .cse7))))) is different from true [2020-10-24 14:49:29,177 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_9|))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_10|)))) (and (= .cse0 (fp.div c_~CRM .cse1 .cse2)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1) (= (fp.div c_~CRM .cse0 .cse3) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse4 .cse3) (= .cse4 .cse2)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse5) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse5))))) (let ((.cse6 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))) (or (fp.eq .cse6 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse6))))) is different from false [2020-10-24 14:49:31,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:49:31,374 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-10-24 14:49:31,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 14:49:31,375 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-10-24 14:49:31,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:49:31,375 INFO L225 Difference]: With dead ends: 12 [2020-10-24 14:49:31,376 INFO L226 Difference]: Without dead ends: 9 [2020-10-24 14:49:31,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 9 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.1s TimeCoverageRelationStatistics Valid=28, Invalid=27, Unknown=11, NotChecked=144, Total=210 [2020-10-24 14:49:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-24 14:49:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-24 14:49:31,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-24 14:49:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-10-24 14:49:31,382 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-10-24 14:49:31,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:49:31,382 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-10-24 14:49:31,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 14:49:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-10-24 14:49:31,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 14:49:31,383 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:49:31,383 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2020-10-24 14:49:31,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:49:31,585 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:49:31,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:49:31,586 INFO L82 PathProgramCache]: Analyzing trace with hash 145055718, now seen corresponding path program 3 times [2020-10-24 14:49:31,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:49:31,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504900398] [2020-10-24 14:49:31,587 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 14:49:35,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:49:35,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:49:35,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-24 14:49:35,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:49:37,824 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse1) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0))))) is different from false [2020-10-24 14:49:40,287 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|)))) (and (= .cse0 .cse1) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse2) (= (fp.div c_~CRM .cse2 .cse1) .cse3) (= .cse4 .cse0) (= (fp.div c_~CRM .cse3 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-10-24 14:49:43,150 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_17 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_17))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse6 (fp ((_ extract 63 63) ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|)))) (and (= .cse0 .cse1) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse2) (= (fp.div c_~CRM .cse2 .cse1) .cse3) (= .cse4 .cse0) (= .cse5 .cse0) (= (fp.div c_~CRM .cse3 .cse5) .cse6) (= (fp.div c_~CRM .cse6 .cse4) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-10-24 14:49:47,071 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet8_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_17 (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_18 (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet8_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet8_12|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_17))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x~0_18) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x~0_18) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x~0_18))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|)))) (and (= (fp.div c_~CRM .cse0 .cse1) .cse2) (= .cse3 .cse4) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse5) (= (fp.div c_~CRM .cse5 .cse4) .cse0) (= .cse6 .cse3) (= .cse1 .cse3) (= (fp.div c_~CRM .cse2 .cse6) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64))) (let ((.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|)))) (and (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x~0)) .cse7) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse7)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-10-24 14:49:47,132 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 14:49:52,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 6 not checked. [2020-10-24 14:49:52,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:49:53,420 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 14:49:55,676 WARN L860 $PredicateComparison]: unable to prove that (or (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|)))) (or (not (fp.eq .cse0 .cse1)) (not (= (fp.div c_~CRM .cse1 .cse2) .cse0)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)))))) is different from true [2020-10-24 14:49:58,128 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_20 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse2 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_20)))) (or (fp.eq .cse0 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse1 .cse2)) (not (fp.eq .cse3 .cse0)) (not (= (fp.div c_~CRM .cse0 .cse4) .cse3)) (not (= .cse2 .cse4)) (not (= (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse1) .cse0))))) is different from true [2020-10-24 14:50:00,862 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x1~0_21 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_20 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_16| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_14| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_19 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_15|))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_20) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_20))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_19) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_19))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_16|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_16|))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~main__x1~0_21) ((_ extract 62 52) v_ULTIMATE.start_main_~main__x1~0_21) ((_ extract 51 0) v_ULTIMATE.start_main_~main__x1~0_21))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_14|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (or (not (= .cse0 (fp.div c_~CRM .cse1 .cse2))) (fp.eq .cse0 ((_ to_fp 11 53) c_~CRM (_ bv0 32))) (not (= .cse2 .cse3)) (not (fp.eq .cse4 .cse0)) (not (= (fp.div c_~CRM .cse0 .cse5) .cse4)) (not (= .cse3 .cse5)) (not (= .cse1 (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~main__x1~0)) .cse6))) (not (= .cse6 .cse3))))) is different from true [2020-10-24 14:50:03,589 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-10-24 14:50:03,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504900398] [2020-10-24 14:50:03,592 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") [2020-10-24 14:50:03,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1657843982] [2020-10-24 14:50:03,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2020-10-24 14:50:10,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:50:10,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:50:10,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 18 conjunts are in the unsatisfiable core [2020-10-24 14:50:10,810 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@70a4ee06 [2020-10-24 14:50:10,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803826756] [2020-10-24 14:50:10,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 14:51:02,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:51:02,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:51:03,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-24 14:51:03,646 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@70a4ee06 [2020-10-24 14:51:03,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:51:03,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-24 14:51:03,646 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-24 14:51:03,647 INFO L523 BasicCegarLoop]: Counterexample might be feasible [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2020-10-24 14:51:04,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt --rewrite-divk,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-24 14:51:04,279 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-24 14:51:04,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:51:04 BoogieIcfgContainer [2020-10-24 14:51:04,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:51:04,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:51:04,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:51:04,287 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:51:04,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:48:06" (3/4) ... [2020-10-24 14:51:04,295 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:51:04,296 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:51:04,308 INFO L168 Benchmark]: Toolchain (without parser) took 180374.02 ms. Allocated memory is still 62.9 MB. Free memory was 45.5 MB in the beginning and 36.5 MB in the end (delta: 9.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:51:04,310 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 27.6 MB in the beginning and 27.5 MB in the end (delta: 84.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:51:04,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.33 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 34.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:51:04,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.07 ms. Allocated memory is still 62.9 MB. Free memory was 34.8 MB in the beginning and 33.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:51:04,313 INFO L168 Benchmark]: Boogie Preprocessor took 31.99 ms. Allocated memory is still 62.9 MB. Free memory was 33.3 MB in the beginning and 32.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:51:04,314 INFO L168 Benchmark]: RCFGBuilder took 2129.48 ms. Allocated memory is still 62.9 MB. Free memory was 32.1 MB in the beginning and 36.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:51:04,314 INFO L168 Benchmark]: TraceAbstraction took 177861.22 ms. Allocated memory is still 62.9 MB. Free memory was 35.9 MB in the beginning and 36.5 MB in the end (delta: -609.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:51:04,315 INFO L168 Benchmark]: Witness Printer took 10.45 ms. Allocated memory is still 62.9 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:51:04,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 27.6 MB in the beginning and 27.5 MB in the end (delta: 84.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 275.33 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 34.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.07 ms. Allocated memory is still 62.9 MB. Free memory was 34.8 MB in the beginning and 33.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.99 ms. Allocated memory is still 62.9 MB. Free memory was 33.3 MB in the beginning and 32.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2129.48 ms. Allocated memory is still 62.9 MB. Free memory was 32.1 MB in the beginning and 36.4 MB in the end (delta: -4.2 MB). Peak memory consumption was 3.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 177861.22 ms. Allocated memory is still 62.9 MB. Free memory was 35.9 MB in the beginning and 36.5 MB in the end (delta: -609.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Witness Printer took 10.45 ms. Allocated memory is still 62.9 MB. Free memory was 36.5 MB in the beginning and 36.5 MB in the end (delta: 2.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1] int __return_main; [L9] EXPR 1.0 [L9] double main__x = 1.0; [L10] EXPR 2.5 [L10] EXPR main__x / 2.5 [L10] double main__x1 = main__x / 2.5; [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 [L25] COND TRUE __VERIFIER_assert__cond == 0 [L4] __assert_fail("0", "Double_div.i.p+cfa-reducer.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 177.6s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 42.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 3 SDslu, 42 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 9.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 18 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.1s SatisfiabilityAnalysisTime, 36.8s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 12 QuantifiedInterpolants, 5894 SizeOfPredicates, 13 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/8 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...