./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91279e250c876c25b5b998426afc8f34c58f709c .................................................................................................................................................................................................................................... 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_bad.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91279e250c876c25b5b998426afc8f34c58f709c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 14:52:05,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:52:05,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:52:05,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:52:05,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:52:05,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:52:05,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:52:05,110 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:52:05,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:52:05,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:52:05,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:52:05,127 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:52:05,128 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:52:05,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:52:05,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:52:05,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:52:05,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:52:05,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:52:05,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:52:05,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:52:05,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:52:05,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:52:05,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:52:05,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:52:05,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:52:05,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:52:05,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:52:05,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:52:05,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:52:05,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:52:05,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:52:05,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:52:05,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:52:05,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:52:05,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:52:05,186 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:52:05,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:52:05,187 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:52:05,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:52:05,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:52:05,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:52:05,192 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 14:52:05,257 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:52:05,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:52:05,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:52:05,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:52:05,262 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:52:05,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:52:05,262 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:52:05,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:52:05,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:52:05,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:52:05,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:52:05,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:52:05,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:52:05,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:52:05,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:52:05,266 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:52:05,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:52:05,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:52:05,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:52:05,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:52:05,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:52:05,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:52:05,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:52:05,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:52:05,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:52:05,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:52:05,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:52:05,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:52:05,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:52:05,271 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91279e250c876c25b5b998426afc8f34c58f709c [2020-10-24 14:52:05,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:52:05,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:52:05,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:52:05,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:52:05,770 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:52:05,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i [2020-10-24 14:52:05,873 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3244e52c/9c36eacfc8724013bb46f36ea7a58b29/FLAG92a0ace86 [2020-10-24 14:52:06,556 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:52:06,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i [2020-10-24 14:52:06,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3244e52c/9c36eacfc8724013bb46f36ea7a58b29/FLAG92a0ace86 [2020-10-24 14:52:06,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3244e52c/9c36eacfc8724013bb46f36ea7a58b29 [2020-10-24 14:52:06,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:52:06,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:52:06,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:52:06,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:52:06,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:52:06,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:52:06" (1/1) ... [2020-10-24 14:52:06,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3113a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:06, skipping insertion in model container [2020-10-24 14:52:06,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:52:06" (1/1) ... [2020-10-24 14:52:06,971 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:52:06,991 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:52:07,197 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:52:07,209 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:52:07,227 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:52:07,244 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:52:07,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07 WrapperNode [2020-10-24 14:52:07,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:52:07,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:52:07,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:52:07,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:52:07,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:52:07,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:52:07,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:52:07,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:52:07,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,308 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (1/1) ... [2020-10-24 14:52:07,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:52:07,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:52:07,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:52:07,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:52:07,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (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 14:52:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:52:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:52:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:52:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:52:07,604 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:52:07,604 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-24 14:52:07,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:52:07 BoogieIcfgContainer [2020-10-24 14:52:07,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:52:07,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:52:07,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:52:07,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:52:07,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:52:06" (1/3) ... [2020-10-24 14:52:07,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a33498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:52:07, skipping insertion in model container [2020-10-24 14:52:07,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:07" (2/3) ... [2020-10-24 14:52:07,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37a33498 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:52:07, skipping insertion in model container [2020-10-24 14:52:07,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:52:07" (3/3) ... [2020-10-24 14:52:07,618 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div_bad.i [2020-10-24 14:52:07,632 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:52:07,639 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:52:07,656 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:52:07,692 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:52:07,693 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:52:07,693 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:52:07,693 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:52:07,694 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:52:07,694 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:52:07,694 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:52:07,694 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:52:07,712 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-24 14:52:07,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 14:52:07,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:52:07,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:52:07,719 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:52:07,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:52:07,727 INFO L82 PathProgramCache]: Analyzing trace with hash 239624332, now seen corresponding path program 1 times [2020-10-24 14:52:07,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:52:07,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481829726] [2020-10-24 14:52:07,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:52:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:52:07,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:52:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:52:07,887 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:52:07,927 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:52:07,928 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:52:07,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:52:07,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:52:07 BoogieIcfgContainer [2020-10-24 14:52:07,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:52:07,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:52:07,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:52:07,974 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:52:07,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:52:07" (3/4) ... [2020-10-24 14:52:07,980 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:52:07,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:52:07,986 INFO L168 Benchmark]: Toolchain (without parser) took 1051.88 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 16.0 MB in the beginning and 22.5 MB in the end (delta: -6.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:52:07,991 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 39.8 MB. Free memory was 25.2 MB in the beginning and 25.2 MB in the end (delta: 19.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:52:07,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.11 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.4 MB in the beginning and 23.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:52:07,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 48.2 MB. Free memory was 23.7 MB in the beginning and 22.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:52:07,997 INFO L168 Benchmark]: Boogie Preprocessor took 25.19 ms. Allocated memory is still 48.2 MB. Free memory was 22.3 MB in the beginning and 21.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:52:07,998 INFO L168 Benchmark]: RCFGBuilder took 294.15 ms. Allocated memory is still 48.2 MB. Free memory was 21.3 MB in the beginning and 23.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:52:08,000 INFO L168 Benchmark]: TraceAbstraction took 362.41 ms. Allocated memory is still 48.2 MB. Free memory was 22.6 MB in the beginning and 22.9 MB in the end (delta: -285.3 kB). Peak memory consumption was 756.0 kB. Max. memory is 16.1 GB. [2020-10-24 14:52:08,001 INFO L168 Benchmark]: Witness Printer took 7.02 ms. Allocated memory is still 48.2 MB. Free memory was 22.9 MB in the beginning and 22.5 MB in the end (delta: 398.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:52:08,018 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 39.8 MB. Free memory was 25.2 MB in the beginning and 25.2 MB in the end (delta: 19.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.11 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 15.4 MB in the beginning and 23.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 48.2 MB. Free memory was 23.7 MB in the beginning and 22.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.19 ms. Allocated memory is still 48.2 MB. Free memory was 22.3 MB in the beginning and 21.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 294.15 ms. Allocated memory is still 48.2 MB. Free memory was 21.3 MB in the beginning and 23.1 MB in the end (delta: -1.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 362.41 ms. Allocated memory is still 48.2 MB. Free memory was 22.6 MB in the beginning and 22.9 MB in the end (delta: -285.3 kB). Peak memory consumption was 756.0 kB. Max. memory is 16.1 GB. * Witness Printer took 7.02 ms. Allocated memory is still 48.2 MB. Free memory was 22.9 MB in the beginning and 22.5 MB in the end (delta: 398.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: 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 21, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 29. Possible FailurePath: [L20] double x = 1.0; [L21] double x1 = x/1.6; [L23] COND FALSE !(x1 != x) [L13] COND TRUE !(cond) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "Double_div_bad.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=14occurred 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, 8 NumberOfCodeBlocks, 8 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 14:52:10,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:52:10,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:52:10,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:52:10,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:52:10,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:52:10,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:52:10,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:52:10,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:52:10,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:52:10,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:52:10,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:52:10,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:52:10,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:52:10,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:52:10,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:52:10,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:52:10,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:52:10,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:52:10,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:52:10,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:52:10,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:52:10,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:52:10,896 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:52:10,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:52:10,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:52:10,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:52:10,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:52:10,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:52:10,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:52:10,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:52:10,911 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:52:10,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:52:10,915 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:52:10,916 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:52:10,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:52:10,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:52:10,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:52:10,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:52:10,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:52:10,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:52:10,923 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 14:52:10,983 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:52:10,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:52:10,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:52:10,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:52:10,988 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:52:10,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:52:10,989 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:52:10,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:52:10,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:52:10,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:52:10,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:52:10,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:52:10,992 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:52:10,992 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:52:10,993 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:52:10,993 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:52:10,993 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:52:10,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:52:10,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:52:10,994 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:52:10,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:52:10,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:52:10,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:52:10,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:52:10,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:52:10,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:52:10,996 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:52:10,996 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:52:10,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:52:10,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:52:10,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:52:10,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91279e250c876c25b5b998426afc8f34c58f709c [2020-10-24 14:52:11,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:52:11,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:52:11,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:52:11,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:52:11,515 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:52:11,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i [2020-10-24 14:52:11,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d8df12f8/73f227bbd0f14fbc8df25bb8e7f1a010/FLAG90b4b1fae [2020-10-24 14:52:12,246 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:52:12,247 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/Double_div_bad.i [2020-10-24 14:52:12,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d8df12f8/73f227bbd0f14fbc8df25bb8e7f1a010/FLAG90b4b1fae [2020-10-24 14:52:12,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d8df12f8/73f227bbd0f14fbc8df25bb8e7f1a010 [2020-10-24 14:52:12,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:52:12,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:52:12,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:52:12,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:52:12,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:52:12,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:52:12" (1/1) ... [2020-10-24 14:52:12,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e71a2f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:12, skipping insertion in model container [2020-10-24 14:52:12,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:52:12" (1/1) ... [2020-10-24 14:52:12,660 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:52:12,680 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:52:13,011 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:52:13,033 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:52:13,064 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:52:13,105 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:52:13,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13 WrapperNode [2020-10-24 14:52:13,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:52:13,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:52:13,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:52:13,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:52:13,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:52:13,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:52:13,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:52:13,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:52:13,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (1/1) ... [2020-10-24 14:52:13,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:52:13,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:52:13,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:52:13,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:52:13,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (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 14:52:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:52:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:52:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:52:13,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:52:13,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:52:17,217 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:52:17,217 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-24 14:52:17,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:52:17 BoogieIcfgContainer [2020-10-24 14:52:17,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:52:17,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:52:17,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:52:17,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:52:17,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:52:12" (1/3) ... [2020-10-24 14:52:17,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4232c3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:52:17, skipping insertion in model container [2020-10-24 14:52:17,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:52:13" (2/3) ... [2020-10-24 14:52:17,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4232c3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:52:17, skipping insertion in model container [2020-10-24 14:52:17,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:52:17" (3/3) ... [2020-10-24 14:52:17,260 INFO L111 eAbstractionObserver]: Analyzing ICFG Double_div_bad.i [2020-10-24 14:52:17,295 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:52:17,303 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:52:17,339 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:52:17,373 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:52:17,374 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:52:17,374 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:52:17,374 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:52:17,375 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:52:17,375 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:52:17,375 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:52:17,375 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:52:17,388 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2020-10-24 14:52:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-24 14:52:17,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:52:17,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:52:17,396 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:52:17,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:52:17,403 INFO L82 PathProgramCache]: Analyzing trace with hash 239624332, now seen corresponding path program 1 times [2020-10-24 14:52:17,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:52:17,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672528312] [2020-10-24 14:52:17,418 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 14:52:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:52:18,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:52:18,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:52:21,022 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet4_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_6|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) .cse0)) (= .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0)))))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)))) is different from false [2020-10-24 14:52:21,047 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 14:52:21,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:52:23,359 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet4_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_7 (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_8 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_6|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_7) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_7) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_7))) (.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_8) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_8) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_8)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0)) (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse1)) (not (= .cse2 (fp.div c_~CRM .cse0 .cse1))) (not (fp.eq .cse2 .cse0))))) is different from true [2020-10-24 14:52:23,361 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 14:52:23,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672528312] [2020-10-24 14:52:23,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:52:23,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 14:52:23,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826129760] [2020-10-24 14:52:23,370 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:52:23,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:52:23,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:52:23,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=9, Unknown=2, NotChecked=10, Total=30 [2020-10-24 14:52:23,389 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 6 states. [2020-10-24 14:52:27,689 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)))) (and (exists ((|v_ULTIMATE.start_main_#t~nondet4_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_6|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) .cse0)) (= .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0)))))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse1) (= roundNearestTiesToEven c_~CRM) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) .cse1)))) is different from false [2020-10-24 14:52:32,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:52:32,291 INFO L93 Difference]: Finished difference Result 25 states and 31 transitions. [2020-10-24 14:52:32,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:52:32,293 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-10-24 14:52:32,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:52:32,301 INFO L225 Difference]: With dead ends: 25 [2020-10-24 14:52:32,301 INFO L226 Difference]: Without dead ends: 10 [2020-10-24 14:52:32,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 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 14:52:32,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-24 14:52:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-24 14:52:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-24 14:52:32,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-10-24 14:52:32,337 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2020-10-24 14:52:32,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:52:32,338 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-10-24 14:52:32,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:52:32,338 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-10-24 14:52:32,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-24 14:52:32,339 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:52:32,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:52:32,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:52:32,553 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:52:32,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:52:32,556 INFO L82 PathProgramCache]: Analyzing trace with hash 438817201, now seen corresponding path program 1 times [2020-10-24 14:52:32,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:52:32,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1755862188] [2020-10-24 14:52:32,563 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 14:52:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:52:34,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 14:52:34,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:52:36,716 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet4_8| (_ BitVec 64)) (ULTIMATE.start_main_~x~0 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_8|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= .cse1 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))))))) is different from false [2020-10-24 14:52:39,127 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet4_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_9 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_9))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_8|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0))) (= .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet6_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_6|)))) (and (= .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0))) (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0))))))) is different from false [2020-10-24 14:52:39,156 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 14:52:39,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:52:41,907 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet6_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_9 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_6|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_9))) (.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0)) (not (= (fp.div c_~CRM .cse1 .cse0) .cse2)) (not (fp.eq .cse2 .cse1))))) is different from false [2020-10-24 14:52:44,103 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet6_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_9 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_6|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_9))) (.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0)) (not (= (fp.div c_~CRM .cse1 .cse0) .cse2)) (not (fp.eq .cse2 .cse1))))) is different from true [2020-10-24 14:52:46,561 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~x~0_11 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_9 (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_10 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_6|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_9))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_10) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_10) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_10))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_8|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_11) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_11) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_11)))) (or (not (= .cse0 .cse1)) (not (= (fp.div c_~CRM .cse2 .cse1) .cse3)) (not (= (fp.div c_~CRM .cse4 .cse5) .cse2)) (not (fp.eq .cse3 .cse2)) (not (= .cse5 .cse0)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4))))) is different from true [2020-10-24 14:52:46,562 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 14:52:46,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1755862188] [2020-10-24 14:52:46,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-24 14:52:46,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-10-24 14:52:46,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788958096] [2020-10-24 14:52:46,567 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 14:52:46,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:52:46,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 14:52:46,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=10, Unknown=5, NotChecked=28, Total=56 [2020-10-24 14:52:46,571 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2020-10-24 14:52:51,621 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 49 [2020-10-24 14:52:56,053 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_#t~nondet6_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_9 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_6|))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_9))) (.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0)) (not (= (fp.div c_~CRM .cse1 .cse0) .cse2)) (not (fp.eq .cse2 .cse1))))) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet4_8| (_ BitVec 64)) (ULTIMATE.start_main_~x~0 (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_8|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse3) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div c_~CRM .cse3 .cse4)) (= .cse4 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0))))) is different from false [2020-10-24 14:52:59,412 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet4_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_9 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_9) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_9) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_9))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_8|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0))) (= .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0)))))) (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet6_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_6|)))) (and (= .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 8.0 5.0))) (= (fp.div roundNearestTiesToEven (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0))))))) is different from false [2020-10-24 14:53:04,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:53:04,110 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-10-24 14:53:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:53:04,112 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2020-10-24 14:53:04,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:53:04,113 INFO L225 Difference]: With dead ends: 17 [2020-10-24 14:53:04,113 INFO L226 Difference]: Without dead ends: 11 [2020-10-24 14:53:04,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=20, Invalid=16, Unknown=8, NotChecked=66, Total=110 [2020-10-24 14:53:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-24 14:53:04,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-24 14:53:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-24 14:53:04,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2020-10-24 14:53:04,118 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2020-10-24 14:53:04,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:53:04,119 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2020-10-24 14:53:04,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 14:53:04,119 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2020-10-24 14:53:04,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 14:53:04,120 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:53:04,120 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:53:04,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 14:53:04,332 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:53:04,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:53:04,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1976138452, now seen corresponding path program 2 times [2020-10-24 14:53:04,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:53:04,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1527179870] [2020-10-24 14:53:04,337 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 14:53:06,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-24 14:53:06,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:53:07,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-24 14:53:07,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:53:18,315 WARN L193 SmtUtils]: Spent 9.16 s on a formula simplification that was a NOOP. DAG size: 29 [2020-10-24 14:53:20,792 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64)) (ULTIMATE.start_main_~x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_12))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|))) (.cse2 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (and (= .cse0 ((_ to_fp 11 53) c_~CRM 1.0)) (= (fp.div c_~CRM .cse0 .cse1) .cse2) (= .cse3 .cse1) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div c_~CRM .cse2 .cse4)) (= .cse4 .cse3)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-10-24 14:53:23,706 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) .cse0))))) (= roundNearestTiesToEven c_~CRM) (exists ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_12))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_13))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (and (= (fp.div c_~CRM .cse1 .cse2) .cse3) (= .cse1 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse4 .cse2) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) (fp.div c_~CRM .cse3 .cse5)) (= .cse5 .cse4))))) is different from false [2020-10-24 14:53:26,603 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~x1~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~x1~0) ((_ extract 62 52) ULTIMATE.start_main_~x1~0) ((_ extract 51 0) ULTIMATE.start_main_~x1~0))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (fp.eq .cse1 .cse2) (= .cse1 (fp.div c_~CRM .cse2 .cse0))))) (exists ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_12))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_13))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (and (= (fp.div c_~CRM .cse3 .cse4) .cse5) (= .cse3 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse6 .cse4) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) (fp.div c_~CRM .cse5 .cse7)) (= .cse7 .cse6))))) is different from false [2020-10-24 14:53:26,688 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-24 14:53:31,787 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 14:53:31,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:53:39,065 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-10-24 14:53:41,330 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_13 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|))) (.cse1 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_13))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0)) (not (= .cse1 (fp.div c_~CRM .cse2 .cse0))) (not (fp.eq .cse1 .cse2))))) (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32)))) is different from true [2020-10-24 14:53:43,793 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_13))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_14)))) (or (not (= .cse0 .cse1)) (not (fp.eq .cse2 .cse3)) (not (= .cse3 (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) .cse4))) (not (= .cse4 .cse0)) (not (= .cse2 (fp.div c_~CRM .cse3 .cse1))) (fp.eq .cse3 ((_ to_fp 11 53) c_~CRM (_ bv0 32)))))) is different from true [2020-10-24 14:53:46,812 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_16 (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_15 (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_14 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_16) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_16) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_16))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_15) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_15) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_15))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_13))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_14)))) (or (not (= .cse0 .cse1)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse2)) (not (fp.eq .cse3 .cse4)) (not (= (fp.div c_~CRM .cse2 .cse5) .cse6)) (not (= .cse7 .cse0)) (not (= (fp.div c_~CRM .cse6 .cse7) .cse4)) (not (= .cse3 (fp.div c_~CRM .cse4 .cse1))) (not (= .cse0 .cse5)) (fp.eq .cse4 ((_ to_fp 11 53) c_~CRM (_ bv0 32)))))) is different from true [2020-10-24 14:53:46,814 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 14:53:46,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1527179870] [2020-10-24 14:53:46,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-24 14:53:46,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2020-10-24 14:53:46,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732791786] [2020-10-24 14:53:46,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-24 14:53:46,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:53:46,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-24 14:53:46,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=32, Unknown=9, NotChecked=90, Total=156 [2020-10-24 14:53:46,818 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 13 states. [2020-10-24 14:53:56,898 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification that was a NOOP. DAG size: 67 [2020-10-24 14:54:01,092 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_14 (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_13))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_14) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_14) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_14)))) (or (not (= .cse0 .cse1)) (not (fp.eq .cse2 .cse3)) (not (= .cse3 (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) .cse4))) (not (= .cse4 .cse0)) (not (= .cse2 (fp.div c_~CRM .cse3 .cse1))) (fp.eq .cse3 ((_ to_fp 11 53) c_~CRM (_ bv0 32)))))) (let ((.cse5 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)))) (or (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) .cse5)) (fp.eq .cse5 ((_ to_fp 11 53) c_~CRM (_ bv0 32))))) (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64))) (let ((.cse6 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse6) (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse7) (= (fp.div c_~CRM .cse6 .cse7) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0))))))) is different from false [2020-10-24 14:54:05,345 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64)) (ULTIMATE.start_main_~x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_12))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|))) (.cse2 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (and (= .cse0 ((_ to_fp 11 53) c_~CRM 1.0)) (= (fp.div c_~CRM .cse0 .cse1) .cse2) (= .cse3 .cse1) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div c_~CRM .cse2 .cse4)) (= .cse4 .cse3)))) (= roundNearestTiesToEven c_~CRM) (or (forall ((|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_13 (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_13))) (.cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse5)) (not (= .cse6 (fp.div c_~CRM .cse7 .cse5))) (not (fp.eq .cse6 .cse7))))) (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))))) is different from false [2020-10-24 14:54:08,121 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64)) (ULTIMATE.start_main_~x~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_12))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|))) (.cse2 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (and (= .cse0 ((_ to_fp 11 53) c_~CRM 1.0)) (= (fp.div c_~CRM .cse0 .cse1) .cse2) (= .cse3 .cse1) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div c_~CRM .cse2 .cse4)) (= .cse4 .cse3)))) (= roundNearestTiesToEven c_~CRM) (or (forall ((|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x1~0_13 (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|))) (.cse6 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x1~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x1~0_13))) (.cse7 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse5)) (not (= .cse6 (fp.div c_~CRM .cse7 .cse5))) (not (fp.eq .cse6 .cse7))))) (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32))))) is different from true [2020-10-24 14:54:10,965 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div c_~CRM (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) .cse0))))) (let ((.cse1 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)))) (or (not (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) .cse1)) (fp.eq .cse1 ((_ to_fp 11 53) c_~CRM (_ bv0 32))))) (= roundNearestTiesToEven c_~CRM) (exists ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_12))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_13))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse5 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (and (= (fp.div c_~CRM .cse2 .cse3) .cse4) (= .cse2 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse5 .cse3) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) (fp.div c_~CRM .cse4 .cse6)) (= .cse6 .cse5))))) is different from false [2020-10-24 14:54:13,832 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((ULTIMATE.start_main_~x1~0 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) ULTIMATE.start_main_~x1~0) ((_ extract 62 52) ULTIMATE.start_main_~x1~0) ((_ extract 51 0) ULTIMATE.start_main_~x1~0))) (.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_10|)))) (and (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse0) (fp.eq .cse1 .cse2) (= .cse1 (fp.div c_~CRM .cse2 .cse0))))) (exists ((v_ULTIMATE.start_main_~x~0_12 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_13 (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_9| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_12) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_12) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_12))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_10|))) (.cse5 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_13) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_13) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_13))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_9|))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)))) (and (= (fp.div c_~CRM .cse3 .cse4) .cse5) (= .cse3 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse6 .cse4) (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) (fp.div c_~CRM .cse5 .cse7)) (= .cse7 .cse6)))) (fp.eq (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x~0)) ((_ to_fp 11 53) c_~CRM (_ bv0 32)))) is different from false [2020-10-24 14:54:17,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:54:17,533 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-10-24 14:54:17,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 14:54:17,535 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 10 [2020-10-24 14:54:17,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:54:17,535 INFO L225 Difference]: With dead ends: 18 [2020-10-24 14:54:17,535 INFO L226 Difference]: Without dead ends: 12 [2020-10-24 14:54:17,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 59.4s TimeCoverageRelationStatistics Valid=36, Invalid=44, Unknown=16, NotChecked=210, Total=306 [2020-10-24 14:54:17,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-10-24 14:54:17,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-10-24 14:54:17,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-24 14:54:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-10-24 14:54:17,546 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-10-24 14:54:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:54:17,547 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-10-24 14:54:17,547 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-24 14:54:17,550 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-10-24 14:54:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 14:54:17,551 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:54:17,552 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 14:54:17,764 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 14:54:17,765 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:54:17,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:54:17,767 INFO L82 PathProgramCache]: Analyzing trace with hash 469647633, now seen corresponding path program 3 times [2020-10-24 14:54:17,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:54:17,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1879748530] [2020-10-24 14:54:17,768 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 14:54:21,642 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:54:21,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:54:21,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-24 14:54:21,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:54:24,299 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet4_12| (_ BitVec 64)) (ULTIMATE.start_main_~x~0 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_12|)))) (and (= (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0)) (fp.div c_~CRM .cse0 .cse1)) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0)) .cse1)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-10-24 14:54:26,824 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet4_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_14| (_ BitVec 64)) (ULTIMATE.start_main_~x~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_17 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_14|))) (.cse0 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse3 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_17) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_17) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_17))) (.cse2 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_12|)))) (and (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0))) (= .cse2 .cse1) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse3) (= .cse0 (fp.div c_~CRM .cse3 .cse4)) (= .cse2 .cse4)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-10-24 14:54:29,792 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet6_15| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet4_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet6_14| (_ BitVec 64)) (ULTIMATE.start_main_~x~0 (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_18 (_ BitVec 64)) (v_ULTIMATE.start_main_~x~0_17 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_14|))) (.cse3 (fp ((_ extract 63 63) ULTIMATE.start_main_~x~0) ((_ extract 62 52) ULTIMATE.start_main_~x~0) ((_ extract 51 0) ULTIMATE.start_main_~x~0))) (.cse2 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_18) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_18) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_18))) (.cse4 (fp ((_ extract 63 63) v_ULTIMATE.start_main_~x~0_17) ((_ extract 62 52) v_ULTIMATE.start_main_~x~0_17) ((_ extract 51 0) v_ULTIMATE.start_main_~x~0_17))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet4_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet4_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet4_12|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 8.0 5.0))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet6_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet6_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet6_15|)))) (and (= .cse0 .cse1) (= (fp.div c_~CRM .cse2 .cse1) .cse3) (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4) (= .cse0 .cse5) (= (fp.div c_~CRM .cse3 .cse6) (fp ((_ extract 63 63) c_ULTIMATE.start_main_~x1~0) ((_ extract 62 52) c_ULTIMATE.start_main_~x1~0) ((_ extract 51 0) c_ULTIMATE.start_main_~x1~0))) (= .cse2 (fp.div c_~CRM .cse4 .cse5)) (= .cse0 .cse6))))) is different from false [2020-10-24 14:54:32,240 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-10-24 14:54:32,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1879748530] [2020-10-24 14:54:32,244 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 14:54:32,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1235046799] [2020-10-24 14:54:32,244 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 14:54:40,326 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:54:40,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:54:40,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-24 14:54:40,337 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@4ff61a52 [2020-10-24 14:54:40,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100379731] [2020-10-24 14:54:40,338 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 14:57:33,580 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-10-24 14:57:33,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-24 14:57:34,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 17 conjunts are in the unsatisfiable core [2020-10-24 14:57:34,416 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@4ff61a52 [2020-10-24 14:57:34,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:57:34,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-10-24 14:57:34,417 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-10-24 14:57:34,417 INFO L523 BasicCegarLoop]: Counterexample might be feasible [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2020-10-24 14:57:35,023 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 14:57:35,061 WARN L238 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-24 14:57:35,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:57:35 BoogieIcfgContainer [2020-10-24 14:57:35,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:57:35,072 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:57:35,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:57:35,073 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:57:35,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:52:17" (3/4) ... [2020-10-24 14:57:35,081 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:57:35,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:57:35,083 INFO L168 Benchmark]: Toolchain (without parser) took 322463.02 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 19.3 MB in the end (delta: 4.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:57:35,084 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 37.7 MB. Free memory was 23.9 MB in the beginning and 23.9 MB in the end (delta: 22.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:57:35,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.75 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 23.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:57:35,085 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.58 ms. Allocated memory is still 46.1 MB. Free memory was 23.8 MB in the beginning and 22.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:57:35,086 INFO L168 Benchmark]: Boogie Preprocessor took 48.59 ms. Allocated memory is still 46.1 MB. Free memory was 22.4 MB in the beginning and 30.9 MB in the end (delta: -8.5 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:57:35,087 INFO L168 Benchmark]: RCFGBuilder took 3980.24 ms. Allocated memory is still 46.1 MB. Free memory was 30.9 MB in the beginning and 29.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:57:35,088 INFO L168 Benchmark]: TraceAbstraction took 317830.31 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 19.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:57:35,089 INFO L168 Benchmark]: Witness Printer took 9.05 ms. Allocated memory is still 46.1 MB. Free memory was 19.6 MB in the beginning and 19.3 MB in the end (delta: 278.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:57:35,093 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 37.7 MB. Free memory was 23.9 MB in the beginning and 23.9 MB in the end (delta: 22.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.75 ms. Allocated memory is still 46.1 MB. Free memory was 22.7 MB in the beginning and 23.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.58 ms. Allocated memory is still 46.1 MB. Free memory was 23.8 MB in the beginning and 22.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.59 ms. Allocated memory is still 46.1 MB. Free memory was 22.4 MB in the beginning and 30.9 MB in the end (delta: -8.5 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3980.24 ms. Allocated memory is still 46.1 MB. Free memory was 30.9 MB in the beginning and 29.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 317830.31 ms. Allocated memory is still 46.1 MB. Free memory was 28.8 MB in the beginning and 19.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Witness Printer took 9.05 ms. Allocated memory is still 46.1 MB. Free memory was 19.6 MB in the beginning and 19.3 MB in the end (delta: 278.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: 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: [L20] EXPR 1.0 [L20] double x = 1.0; [L21] EXPR 1.6 [L21] EXPR x/1.6 [L21] double x1 = x/1.6; [L23] COND TRUE x1 != x [L25] x = x1 [L26] EXPR 1.6 [L26] EXPR x/1.6 [L26] x1 = x/1.6 [L23] COND TRUE x1 != x [L25] x = x1 [L26] EXPR 1.6 [L26] EXPR x/1.6 [L26] x1 = x/1.6 [L23] COND TRUE x1 != x [L25] x = x1 [L26] EXPR 1.6 [L26] EXPR x/1.6 [L26] x1 = x/1.6 [L23] COND FALSE !(x1 != x) [L13] COND TRUE !(cond) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "Double_div_bad.c", 3, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 317.6s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 57.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 3 SDslu, 77 SDs, 0 SdLazy, 23 SolverSat, 2 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 16.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 19 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 91.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 5.4s SatisfiabilityAnalysisTime, 56.8s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 48 ConstructedInterpolants, 13 QuantifiedInterpolants, 10616 SizeOfPredicates, 13 NumberOfNonLiveVariables, 96 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...