./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5828f0140d590ad7769cb7343d2c3b5784d8d5d ............................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5828f0140d590ad7769cb7343d2c3b5784d8d5d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 19:26:30,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 19:26:30,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 19:26:30,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 19:26:30,266 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 19:26:30,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 19:26:30,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 19:26:30,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 19:26:30,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 19:26:30,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 19:26:30,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 19:26:30,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 19:26:30,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 19:26:30,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 19:26:30,310 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 19:26:30,312 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 19:26:30,313 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 19:26:30,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 19:26:30,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 19:26:30,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 19:26:30,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 19:26:30,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 19:26:30,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 19:26:30,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 19:26:30,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 19:26:30,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 19:26:30,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 19:26:30,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 19:26:30,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 19:26:30,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 19:26:30,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 19:26:30,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 19:26:30,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 19:26:30,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 19:26:30,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 19:26:30,363 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 19:26:30,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 19:26:30,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 19:26:30,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 19:26:30,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 19:26:30,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 19:26:30,370 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 19:26:30,429 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 19:26:30,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 19:26:30,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 19:26:30,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 19:26:30,435 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 19:26:30,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 19:26:30,436 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 19:26:30,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 19:26:30,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 19:26:30,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 19:26:30,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 19:26:30,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 19:26:30,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 19:26:30,438 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 19:26:30,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 19:26:30,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 19:26:30,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 19:26:30,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 19:26:30,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 19:26:30,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 19:26:30,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 19:26:30,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 19:26:30,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 19:26:30,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 19:26:30,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 19:26:30,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 19:26:30,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 19:26:30,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 19:26:30,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 19:26:30,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5828f0140d590ad7769cb7343d2c3b5784d8d5d [2020-12-02 19:26:30,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 19:26:30,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 19:26:30,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 19:26:30,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 19:26:30,934 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 19:26:30,935 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c [2020-12-02 19:26:31,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4b30588/49cd6c4f6cdc456bb20bc558ca46cd9b/FLAGc496fed7a [2020-12-02 19:26:31,696 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 19:26:31,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c [2020-12-02 19:26:31,705 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4b30588/49cd6c4f6cdc456bb20bc558ca46cd9b/FLAGc496fed7a [2020-12-02 19:26:32,053 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da4b30588/49cd6c4f6cdc456bb20bc558ca46cd9b [2020-12-02 19:26:32,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 19:26:32,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 19:26:32,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 19:26:32,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 19:26:32,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 19:26:32,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71949808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32, skipping insertion in model container [2020-12-02 19:26:32,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,116 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 19:26:32,136 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 19:26:32,355 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c[667,680] [2020-12-02 19:26:32,361 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 19:26:32,374 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 19:26:32,392 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c[667,680] [2020-12-02 19:26:32,393 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 19:26:32,410 INFO L217 MainTranslator]: Completed translation [2020-12-02 19:26:32,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32 WrapperNode [2020-12-02 19:26:32,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 19:26:32,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 19:26:32,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 19:26:32,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 19:26:32,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 19:26:32,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 19:26:32,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 19:26:32,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 19:26:32,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... [2020-12-02 19:26:32,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 19:26:32,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 19:26:32,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 19:26:32,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 19:26:32,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 19:26:32,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 19:26:32,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 19:26:32,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 19:26:32,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 19:26:32,927 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 19:26:32,928 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 19:26:32,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:32 BoogieIcfgContainer [2020-12-02 19:26:32,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 19:26:32,935 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 19:26:32,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 19:26:32,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 19:26:32,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:26:32" (1/3) ... [2020-12-02 19:26:32,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef61932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:32, skipping insertion in model container [2020-12-02 19:26:32,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:32" (2/3) ... [2020-12-02 19:26:32,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ef61932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:32, skipping insertion in model container [2020-12-02 19:26:32,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:32" (3/3) ... [2020-12-02 19:26:32,948 INFO L111 eAbstractionObserver]: Analyzing ICFG Float_div.i.p+cfa-reducer.c [2020-12-02 19:26:32,967 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 19:26:32,972 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 19:26:32,986 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 19:26:33,035 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 19:26:33,036 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 19:26:33,036 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 19:26:33,037 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 19:26:33,037 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 19:26:33,037 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 19:26:33,037 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 19:26:33,037 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 19:26:33,058 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-02 19:26:33,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-02 19:26:33,066 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:26:33,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-02 19:26:33,067 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:26:33,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:26:33,076 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-12-02 19:26:33,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 19:26:33,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026693562] [2020-12-02 19:26:33,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 19:26:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 19:26:33,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 19:26:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 19:26:33,335 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 19:26:33,366 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 19:26:33,367 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 19:26:33,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 19:26:33,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:26:33 BoogieIcfgContainer [2020-12-02 19:26:33,408 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 19:26:33,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 19:26:33,411 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 19:26:33,412 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 19:26:33,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:32" (3/4) ... [2020-12-02 19:26:33,418 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 19:26:33,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 19:26:33,425 INFO L168 Benchmark]: Toolchain (without parser) took 1358.22 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 20.1 MB in the beginning and 27.8 MB in the end (delta: -7.7 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2020-12-02 19:26:33,428 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 41.9 MB. Free memory was 22.5 MB in the beginning and 22.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:26:33,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.34 ms. Allocated memory is still 41.9 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 99.8 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-02 19:26:33,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.31 ms. Allocated memory is still 41.9 MB. Free memory was 19.7 MB in the beginning and 18.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:26:33,434 INFO L168 Benchmark]: Boogie Preprocessor took 22.25 ms. Allocated memory is still 41.9 MB. Free memory was 18.4 MB in the beginning and 17.5 MB in the end (delta: 961.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 19:26:33,436 INFO L168 Benchmark]: RCFGBuilder took 457.74 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.3 MB in the beginning and 26.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-02 19:26:33,437 INFO L168 Benchmark]: TraceAbstraction took 473.15 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 28.3 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:26:33,438 INFO L168 Benchmark]: Witness Printer took 8.38 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 27.8 MB in the end (delta: 463.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:26:33,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 41.9 MB. Free memory was 22.5 MB in the beginning and 22.4 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 346.34 ms. Allocated memory is still 41.9 MB. Free memory was 19.8 MB in the beginning and 19.7 MB in the end (delta: 99.8 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.31 ms. Allocated memory is still 41.9 MB. Free memory was 19.7 MB in the beginning and 18.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.25 ms. Allocated memory is still 41.9 MB. Free memory was 18.4 MB in the beginning and 17.5 MB in the end (delta: 961.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 457.74 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.3 MB in the beginning and 26.8 MB in the end (delta: -9.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 473.15 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 28.3 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 8.38 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 27.8 MB in the end (delta: 463.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 10, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 12. Possible FailurePath: [L1] int __return_main; VAL [__return_main=0] [L9] float main__x = 1.0; [L10] float main__x1 = main__x / 2.5; VAL [__return_main=0] [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 VAL [__return_main=0] [L25] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_main=0] [L27] reach_error() VAL [__return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 19:26:36,198 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 19:26:36,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 19:26:36,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 19:26:36,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 19:26:36,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 19:26:36,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 19:26:36,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 19:26:36,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 19:26:36,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 19:26:36,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 19:26:36,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 19:26:36,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 19:26:36,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 19:26:36,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 19:26:36,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 19:26:36,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 19:26:36,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 19:26:36,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 19:26:36,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 19:26:36,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 19:26:36,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 19:26:36,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 19:26:36,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 19:26:36,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 19:26:36,280 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 19:26:36,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 19:26:36,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 19:26:36,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 19:26:36,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 19:26:36,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 19:26:36,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 19:26:36,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 19:26:36,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 19:26:36,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 19:26:36,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 19:26:36,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 19:26:36,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 19:26:36,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 19:26:36,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 19:26:36,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 19:26:36,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 19:26:36,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 19:26:36,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 19:26:36,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 19:26:36,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 19:26:36,379 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 19:26:36,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 19:26:36,380 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 19:26:36,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 19:26:36,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 19:26:36,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 19:26:36,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 19:26:36,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 19:26:36,383 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 19:26:36,383 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 19:26:36,383 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 19:26:36,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 19:26:36,384 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 19:26:36,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 19:26:36,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 19:26:36,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 19:26:36,385 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 19:26:36,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 19:26:36,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 19:26:36,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 19:26:36,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 19:26:36,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 19:26:36,387 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 19:26:36,387 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 19:26:36,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 19:26:36,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 19:26:36,388 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 19:26:36,389 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5828f0140d590ad7769cb7343d2c3b5784d8d5d [2020-12-02 19:26:36,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 19:26:36,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 19:26:36,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 19:26:36,956 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 19:26:36,956 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 19:26:36,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c [2020-12-02 19:26:37,054 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bc271115/8a4b3d61043d41eeb13857b048f92a61/FLAG9742d63c1 [2020-12-02 19:26:37,730 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 19:26:37,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c [2020-12-02 19:26:37,738 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bc271115/8a4b3d61043d41eeb13857b048f92a61/FLAG9742d63c1 [2020-12-02 19:26:38,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bc271115/8a4b3d61043d41eeb13857b048f92a61 [2020-12-02 19:26:38,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 19:26:38,123 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 19:26:38,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 19:26:38,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 19:26:38,130 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 19:26:38,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d1707d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38, skipping insertion in model container [2020-12-02 19:26:38,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,145 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 19:26:38,163 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 19:26:38,370 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c[667,680] [2020-12-02 19:26:38,376 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 19:26:38,394 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 19:26:38,413 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/Float_div.i.p+cfa-reducer.c[667,680] [2020-12-02 19:26:38,414 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 19:26:38,434 INFO L217 MainTranslator]: Completed translation [2020-12-02 19:26:38,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38 WrapperNode [2020-12-02 19:26:38,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 19:26:38,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 19:26:38,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 19:26:38,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 19:26:38,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 19:26:38,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 19:26:38,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 19:26:38,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 19:26:38,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... [2020-12-02 19:26:38,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 19:26:38,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 19:26:38,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 19:26:38,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 19:26:38,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 19:26:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 19:26:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 19:26:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 19:26:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 19:26:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 19:26:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 19:26:43,228 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 19:26:43,231 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-02 19:26:43,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:43 BoogieIcfgContainer [2020-12-02 19:26:43,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 19:26:43,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 19:26:43,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 19:26:43,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 19:26:43,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:26:38" (1/3) ... [2020-12-02 19:26:43,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772ea07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:43, skipping insertion in model container [2020-12-02 19:26:43,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:26:38" (2/3) ... [2020-12-02 19:26:43,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772ea07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:26:43, skipping insertion in model container [2020-12-02 19:26:43,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:43" (3/3) ... [2020-12-02 19:26:43,268 INFO L111 eAbstractionObserver]: Analyzing ICFG Float_div.i.p+cfa-reducer.c [2020-12-02 19:26:43,312 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 19:26:43,324 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 19:26:43,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 19:26:43,390 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 19:26:43,390 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 19:26:43,391 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 19:26:43,391 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 19:26:43,391 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 19:26:43,391 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 19:26:43,391 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 19:26:43,392 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 19:26:43,406 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-02 19:26:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-02 19:26:43,412 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:26:43,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-02 19:26:43,414 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:26:43,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:26:43,421 INFO L82 PathProgramCache]: Analyzing trace with hash 28696774, now seen corresponding path program 1 times [2020-12-02 19:26:43,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 19:26:43,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210916700] [2020-12-02 19:26:43,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 19:26:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 19:26:44,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 19:26:44,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 19:26:46,700 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse1 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse2)) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse2))))) is different from false [2020-12-02 19:26:48,719 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse1 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse2)) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse2))))) is different from true [2020-12-02 19:26:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 19:26:48,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 19:26:51,066 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_7 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_7 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_7))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_7)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1)) (not (= .cse2 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse0))) (not (= .cse4 ((_ to_fp 8 24) c_~CRM .cse2))) (not (= ((_ to_fp 8 24) c_~CRM .cse1) .cse3)) (not (fp.eq .cse4 .cse3))))) is different from true [2020-12-02 19:26:51,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 19:26:51,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [210916700] [2020-12-02 19:26:51,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 19:26:51,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-02 19:26:51,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441147005] [2020-12-02 19:26:51,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 19:26:51,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 19:26:51,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 19:26:51,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=8, Unknown=3, NotChecked=10, Total=30 [2020-12-02 19:26:51,093 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 6 states. [2020-12-02 19:26:53,685 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_7 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_7 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_7) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_7))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_7) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_7)))) (or (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)) (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse1)) (not (= .cse2 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse0))) (not (= .cse4 ((_ to_fp 8 24) c_~CRM .cse2))) (not (= ((_ to_fp 8 24) c_~CRM .cse1) .cse3)) (not (fp.eq .cse4 .cse3)))))) is different from true [2020-12-02 19:26:55,911 WARN L838 $PredicateComparison]: unable to prove that (and (not (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet7_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_6|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_6|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse1 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse2)) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse2))))) is different from false [2020-12-02 19:27:00,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 19:27:00,535 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2020-12-02 19:27:00,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 19:27:00,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-12-02 19:27:00,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 19:27:00,547 INFO L225 Difference]: With dead ends: 16 [2020-12-02 19:27:00,547 INFO L226 Difference]: Without dead ends: 7 [2020-12-02 19:27:00,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=13, Invalid=10, Unknown=5, NotChecked=28, Total=56 [2020-12-02 19:27:00,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-12-02 19:27:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-12-02 19:27:00,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-02 19:27:00,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-12-02 19:27:00,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2020-12-02 19:27:00,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 19:27:00,589 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2020-12-02 19:27:00,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 19:27:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-12-02 19:27:00,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-02 19:27:00,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:27:00,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-02 19:27:00,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 19:27:00,813 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:27:00,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:27:00,815 INFO L82 PathProgramCache]: Analyzing trace with hash 889537510, now seen corresponding path program 1 times [2020-12-02 19:27:00,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 19:27:00,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051274808] [2020-12-02 19:27:00,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 19:27:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 19:27:02,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-02 19:27:02,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 19:27:04,934 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse2 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0) (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse2) .cse3)) (= ((_ to_fp 8 24) c_~CRM .cse0) .cse2) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse3) (= ((_ to_fp 8 24) c_~CRM .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-12-02 19:27:07,411 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse0) (= .cse1 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse0)) (= ((_ to_fp 8 24) roundNearestTiesToEven .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_8))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse2 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse3) .cse4)) (= ((_ to_fp 8 24) roundNearestTiesToEven .cse5) .cse3) (= .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse5))))) is different from false [2020-12-02 19:27:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-12-02 19:27:07,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 19:27:10,972 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse1 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))) (or (not (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2))) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse3)) (not (fp.eq .cse3 .cse1))))) is different from false [2020-12-02 19:27:13,195 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse1 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))) (or (not (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2))) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse3)) (not (fp.eq .cse3 .cse1))))) is different from true [2020-12-02 19:27:15,689 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32)) (v_ULTIMATE.start_main_~main__x1~0_10 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_10 (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_10))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_10)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0)) (not (= .cse1 .cse2)) (not (= .cse1 .cse3)) (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse5) .cse2))) (not (= .cse6 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse7) .cse3))) (not (= ((_ to_fp 8 24) c_~CRM .cse6) .cse5)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse7)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse8)) (not (fp.eq .cse8 .cse5))))) is different from true [2020-12-02 19:27:15,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2020-12-02 19:27:15,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051274808] [2020-12-02 19:27:15,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-02 19:27:15,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2020-12-02 19:27:15,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008132900] [2020-12-02 19:27:15,693 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-02 19:27:15,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 19:27:15,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-02 19:27:15,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=10, Unknown=5, NotChecked=28, Total=56 [2020-12-02 19:27:15,696 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2020-12-02 19:27:18,058 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32)) (v_ULTIMATE.start_main_~main__x1~0_10 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_10 (_ BitVec 32))) (let ((.cse1 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_10) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_10))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_10) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_10)))) (or (not (= ((_ to_fp 11 53) c_~CRM 1.0) .cse0)) (not (= .cse1 .cse2)) (not (= .cse1 .cse3)) (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse5) .cse2))) (not (= .cse6 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse7) .cse3))) (not (= ((_ to_fp 8 24) c_~CRM .cse6) .cse5)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse7)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse8)) (not (fp.eq .cse8 .cse5)))))) is different from true [2020-12-02 19:27:20,910 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse1 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))) (or (not (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2))) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse3)) (not (fp.eq .cse3 .cse1))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse6 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4) (= .cse5 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse6) .cse7)) (= ((_ to_fp 8 24) c_~CRM .cse4) .cse6) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse7) (= ((_ to_fp 8 24) c_~CRM .cse5) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from false [2020-12-02 19:27:22,932 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_9 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_9) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_9))) (.cse1 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))) (or (not (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2))) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse3)) (not (fp.eq .cse3 .cse1))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|))) (.cse6 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|)))) (and (= ((_ to_fp 11 53) c_~CRM 1.0) .cse4) (= .cse5 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse6) .cse7)) (= ((_ to_fp 8 24) c_~CRM .cse4) .cse6) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse7) (= ((_ to_fp 8 24) c_~CRM .cse5) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))))))) is different from true [2020-12-02 19:27:25,403 WARN L838 $PredicateComparison]: unable to prove that (and (not (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0)))) (exists ((|v_ULTIMATE.start_main_#t~nondet12_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_6|)))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0)) .cse0) (= .cse1 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse0)) (= ((_ to_fp 8 24) roundNearestTiesToEven .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (exists ((|v_ULTIMATE.start_main_#t~nondet10_8| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_8 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_8|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_8) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_8))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_8|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_8|)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse2 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven .cse3) .cse4)) (= ((_ to_fp 8 24) roundNearestTiesToEven .cse5) .cse3) (= .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 5.0 2.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) .cse5))))) is different from false [2020-12-02 19:27:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 19:27:30,153 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2020-12-02 19:27:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 19:27:30,154 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2020-12-02 19:27:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 19:27:30,155 INFO L225 Difference]: With dead ends: 11 [2020-12-02 19:27:30,155 INFO L226 Difference]: Without dead ends: 8 [2020-12-02 19:27:30,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=19, Invalid=12, Unknown=9, NotChecked=70, Total=110 [2020-12-02 19:27:30,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-02 19:27:30,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-02 19:27:30,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-02 19:27:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-02 19:27:30,161 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2020-12-02 19:27:30,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 19:27:30,162 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-02 19:27:30,162 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-02 19:27:30,162 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-02 19:27:30,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-02 19:27:30,163 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:27:30,163 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-02 19:27:30,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 19:27:30,365 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:27:30,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:27:30,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1805796550, now seen corresponding path program 2 times [2020-12-02 19:27:30,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 19:27:30,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799701658] [2020-12-02 19:27:30,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 19:27:33,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-02 19:27:33,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-02 19:27:33,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-02 19:27:33,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 19:27:35,578 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2)) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2) (= .cse3 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 8 24) c_~CRM .cse3) .cse1))))) is different from false [2020-12-02 19:27:38,085 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|)))) (and (= .cse0 .cse1) (= ((_ to_fp 8 24) c_~CRM .cse2) .cse3) (= .cse4 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse5 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse6)) (= ((_ to_fp 8 24) c_~CRM .cse4) .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse7) .cse1) .cse2) (= .cse6 .cse0) (= ((_ to_fp 8 24) c_~CRM .cse5) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-02 19:27:41,051 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (and (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse0) .cse1) (= ((_ to_fp 8 24) c_~CRM .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)))) (= roundNearestTiesToEven c_~CRM) (exists ((v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse5 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse9 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse3 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (and (= ((_ to_fp 8 24) c_~CRM .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse3 .cse4) (= .cse2 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse5) .cse6)) (= .cse7 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse8) .cse5) (= ((_ to_fp 8 24) c_~CRM .cse7) .cse9) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse9) .cse4) .cse8) (= .cse6 .cse3))))) is different from false [2020-12-02 19:27:41,138 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-02 19:27:41,145 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 13 disjuncts [2020-12-02 19:27:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-12-02 19:27:41,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 19:27:41,614 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-02 19:27:43,880 WARN L860 $PredicateComparison]: unable to prove that (or (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse1 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (or (not (fp.eq .cse0 .cse1)) (not (= ((_ to_fp 8 24) c_~CRM .cse2) .cse0)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse3)) (not (= .cse2 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse3))))))) is different from true [2020-12-02 19:27:46,401 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse5 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (or (not (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) .cse1))) (not (= ((_ to_fp 8 24) c_~CRM .cse2) .cse3)) (fp.eq .cse4 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (fp.eq .cse3 .cse4)) (not (= ((_ to_fp 8 24) c_~CRM .cse0) .cse4)) (not (= .cse5 .cse6)) (not (= .cse2 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse4) .cse6))) (not (= .cse1 .cse5))))) is different from true [2020-12-02 19:27:49,405 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~main__x~0_15 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_15 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_15))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse0 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_15))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse9 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (or (not (= .cse0 ((_ to_fp 8 24) c_~CRM .cse1))) (not (= ((_ to_fp 8 24) c_~CRM .cse2) .cse3)) (not (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse4) .cse5) .cse1)) (fp.eq .cse6 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (= .cse2 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse6) .cse7))) (not (= .cse8 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= ((_ to_fp 8 24) c_~CRM .cse8) .cse4)) (not (= .cse9 .cse5)) (not (= .cse10 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse0) .cse11))) (not (fp.eq .cse3 .cse6)) (not (= ((_ to_fp 8 24) c_~CRM .cse10) .cse6)) (not (= .cse9 .cse7)) (not (= .cse11 .cse9))))) is different from true [2020-12-02 19:27:49,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2020-12-02 19:27:49,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799701658] [2020-12-02 19:27:49,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-02 19:27:49,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2020-12-02 19:27:49,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98368311] [2020-12-02 19:27:49,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 19:27:49,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 19:27:49,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 19:27:49,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=19, Unknown=6, NotChecked=66, Total=110 [2020-12-02 19:27:49,417 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2020-12-02 19:27:52,779 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (forall ((v_ULTIMATE.start_main_~main__x~0_15 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_15 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse4 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_15) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_15))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse0 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_15) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_15))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse9 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (or (not (= .cse0 ((_ to_fp 8 24) c_~CRM .cse1))) (not (= ((_ to_fp 8 24) c_~CRM .cse2) .cse3)) (not (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse4) .cse5) .cse1)) (fp.eq .cse6 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (= .cse2 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse6) .cse7))) (not (= .cse8 ((_ to_fp 11 53) c_~CRM 1.0))) (not (= ((_ to_fp 8 24) c_~CRM .cse8) .cse4)) (not (= .cse9 .cse5)) (not (= .cse10 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse0) .cse11))) (not (fp.eq .cse3 .cse6)) (not (= ((_ to_fp 8 24) c_~CRM .cse10) .cse6)) (not (= .cse9 .cse7)) (not (= .cse11 .cse9)))))) is different from true [2020-12-02 19:27:55,014 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2)) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2) (= .cse3 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 8 24) c_~CRM .cse3) .cse1)))) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64))) (let ((.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse9 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (or (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) .cse5))) (not (= ((_ to_fp 8 24) c_~CRM .cse6) .cse7)) (fp.eq .cse8 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (fp.eq .cse7 .cse8)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse8)) (not (= .cse9 .cse10)) (not (= .cse6 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse8) .cse10))) (not (= .cse5 .cse9)))))) is different from false [2020-12-02 19:27:57,817 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse2)) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2) (= .cse3 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 8 24) c_~CRM .cse3) .cse1)))) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_14 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64))) (let ((.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_14) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_14))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse9 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (or (not (= .cse4 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) .cse5))) (not (= ((_ to_fp 8 24) c_~CRM .cse6) .cse7)) (fp.eq .cse8 ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (not (fp.eq .cse7 .cse8)) (not (= ((_ to_fp 8 24) c_~CRM .cse4) .cse8)) (not (= .cse9 .cse10)) (not (= .cse6 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse8) .cse10))) (not (= .cse5 .cse9)))))) is different from true [2020-12-02 19:28:00,813 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|)))) (and (= .cse0 .cse1) (= ((_ to_fp 8 24) c_~CRM .cse2) .cse3) (= .cse4 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse5 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse6)) (= ((_ to_fp 8 24) c_~CRM .cse4) .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse7) .cse1) .cse2) (= .cse6 .cse0) (= ((_ to_fp 8 24) c_~CRM .cse5) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (= roundNearestTiesToEven c_~CRM) (or (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse9 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (or (not (fp.eq .cse8 .cse9)) (not (= ((_ to_fp 8 24) c_~CRM .cse10) .cse8)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse11)) (not (= .cse10 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse9) .cse11)))))))) is different from false [2020-12-02 19:28:03,686 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse7 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse0 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|)))) (and (= .cse0 .cse1) (= ((_ to_fp 8 24) c_~CRM .cse2) .cse3) (= .cse4 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse5 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse6)) (= ((_ to_fp 8 24) c_~CRM .cse4) .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse7) .cse1) .cse2) (= .cse6 .cse0) (= ((_ to_fp 8 24) c_~CRM .cse5) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)))))) (= roundNearestTiesToEven c_~CRM) (or (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) ((_ to_fp 8 24) c_~CRM (_ bv0 32))) (forall ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x1~0_13 (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x1~0_13) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x1~0_13))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse9 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (.cse11 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (or (not (fp.eq .cse8 .cse9)) (not (= ((_ to_fp 8 24) c_~CRM .cse10) .cse8)) (not (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse11)) (not (= .cse10 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse9) .cse11)))))))) is different from true [2020-12-02 19:28:06,652 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet12_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_10|))) (.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_10|)))) (and (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) .cse0) .cse1) (= ((_ to_fp 8 24) c_~CRM .cse1) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse0)))) (= roundNearestTiesToEven c_~CRM) (let ((.cse2 (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0)))) (or (not (fp.eq (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0)) .cse2)) (fp.eq .cse2 ((_ to_fp 8 24) c_~CRM (_ bv0 32))))) (exists ((v_ULTIMATE.start_main_~main__x~0_12 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet9_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet7_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_9| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_9| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_11 (_ BitVec 32))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_9|))) (.cse6 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_12) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_12))) (.cse8 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_10|))) (.cse10 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_11) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_11))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_10|))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_10|))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_9|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_9|))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)))) (and (= ((_ to_fp 8 24) c_~CRM .cse3) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x~0))) (= .cse4 .cse5) (= .cse3 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse6) .cse7)) (= .cse8 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 8 24) c_~CRM .cse9) .cse6) (= ((_ to_fp 8 24) c_~CRM .cse8) .cse10) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse10) .cse5) .cse9) (= .cse7 .cse4))))) is different from false [2020-12-02 19:28:11,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 19:28:11,399 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2020-12-02 19:28:11,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 19:28:11,399 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2020-12-02 19:28:11,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 19:28:11,400 INFO L225 Difference]: With dead ends: 12 [2020-12-02 19:28:11,400 INFO L226 Difference]: Without dead ends: 9 [2020-12-02 19:28:11,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.1s TimeCoverageRelationStatistics Valid=27, Invalid=21, Unknown=12, NotChecked=150, Total=210 [2020-12-02 19:28:11,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-02 19:28:11,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-02 19:28:11,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-02 19:28:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-02 19:28:11,405 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-12-02 19:28:11,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 19:28:11,405 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-02 19:28:11,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-02 19:28:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-02 19:28:11,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-02 19:28:11,406 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:28:11,407 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2020-12-02 19:28:11,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 19:28:11,616 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:28:11,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:28:11,618 INFO L82 PathProgramCache]: Analyzing trace with hash 145055718, now seen corresponding path program 3 times [2020-12-02 19:28:11,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 19:28:11,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394314097] [2020-12-02 19:28:11,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-02 19:28:16,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-02 19:28:16,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-02 19:28:16,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-02 19:28:16,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 19:28:18,713 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet7_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_12| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_12|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_12|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_12|))) (.cse3 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse1 ((_ to_fp 11 53) c_~CRM 1.0)) (= ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0)) .cse2) (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse2)) (= ((_ to_fp 8 24) c_~CRM .cse1) .cse3))))) is different from false [2020-12-02 19:28:21,217 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_14| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_12|))) (.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_12|))) (.cse6 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse1 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_14|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_14|))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_12|))) (.cse3 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_16)))) (and (= ((_ to_fp 8 24) c_~CRM .cse0) .cse1) (= ((_ to_fp 8 24) c_~CRM .cse2) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= .cse0 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse3) .cse4)) (= .cse5 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse6 .cse4) (= .cse6 .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse1) .cse7) .cse2) (= ((_ to_fp 8 24) c_~CRM .cse5) .cse3))))) is different from false [2020-12-02 19:28:24,290 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet12_15| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_16 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet7_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet12_14| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet13_15| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet9_12| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet10_12| (_ BitVec 64)) (v_ULTIMATE.start_main_~main__x~0_17 (_ BitVec 32)) (|v_ULTIMATE.start_main_#t~nondet13_14| (_ BitVec 64)) (ULTIMATE.start_main_~main__x~0 (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet10_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet10_12|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet9_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet9_12|))) (.cse4 ((_ to_fp 11 53) c_~CRM (/ 5.0 2.0))) (.cse5 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_15|))) (.cse0 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_17) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_17))) (.cse7 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet12_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet12_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet12_14|))) (.cse6 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet7_12|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet7_12|))) (.cse2 (fp ((_ extract 31 31) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 30 23) v_ULTIMATE.start_main_~main__x~0_16) ((_ extract 22 0) v_ULTIMATE.start_main_~main__x~0_16))) (.cse9 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_15|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_15|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_15|))) (.cse10 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet13_14|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet13_14|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet13_14|))) (.cse8 (fp ((_ extract 31 31) ULTIMATE.start_main_~main__x~0) ((_ extract 30 23) ULTIMATE.start_main_~main__x~0) ((_ extract 22 0) ULTIMATE.start_main_~main__x~0)))) (and (= .cse0 ((_ to_fp 8 24) c_~CRM .cse1)) (= .cse1 (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse2) .cse3)) (= .cse4 .cse5) (= .cse6 ((_ to_fp 11 53) c_~CRM 1.0)) (= .cse4 .cse3) (= .cse4 .cse7) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse8) .cse5) .cse9) (= (fp.div c_~CRM ((_ to_fp 11 53) c_~CRM .cse0) .cse7) .cse10) (= ((_ to_fp 8 24) c_~CRM .cse6) .cse2) (= ((_ to_fp 8 24) c_~CRM .cse9) (fp ((_ extract 31 31) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 30 23) c_ULTIMATE.start_main_~main__x1~0) ((_ extract 22 0) c_ULTIMATE.start_main_~main__x1~0))) (= ((_ to_fp 8 24) c_~CRM .cse10) .cse8))))) is different from false [2020-12-02 19:28:27,519 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 19:28:27,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394314097] [2020-12-02 19:28:27,522 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") [2020-12-02 19:28:27,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [501905526] [2020-12-02 19:28:27,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/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) [2020-12-02 19:28:27,557 FATAL L? ?]: Ignoring exception! de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (cvc4 --incremental --print-success --lang smt --rewrite-divk) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.createProcess(Executor.java:107) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.(Executor.java:83) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.(Scriptor.java:72) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.solverbuilder.SolverBuilder.buildScript(SolverBuilder.java:149) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.solverbuilder.SolverBuilder.buildAndInitializeSolver(SolverBuilder.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCvc4.constructManagedScript(IpTcStrategyModuleCvc4.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:254) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 33 more [2020-12-02 19:28:27,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854789880] [2020-12-02 19:28:27,564 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk 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 [2020-12-02 19:30:49,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-02 19:30:49,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-02 19:30:50,491 WARN L261 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-02 19:30:50,492 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@cf6110c [2020-12-02 19:30:50,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-02 19:30:50,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-02 19:30:50,492 ERROR L205 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2020-12-02 19:30:50,492 INFO L523 BasicCegarLoop]: Counterexample might be feasible [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2020-12-02 19:30:50,907 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-02 19:30:50,960 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-02 19:30:50,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:30:50 BoogieIcfgContainer [2020-12-02 19:30:50,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 19:30:50,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 19:30:50,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 19:30:50,966 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 19:30:50,967 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:26:43" (3/4) ... [2020-12-02 19:30:50,978 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 19:30:50,980 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 19:30:50,983 INFO L168 Benchmark]: Toolchain (without parser) took 252858.31 ms. Allocated memory is still 48.2 MB. Free memory was 25.1 MB in the beginning and 26.4 MB in the end (delta: -1.3 MB). Peak memory consumption was 653.5 kB. Max. memory is 16.1 GB. [2020-12-02 19:30:50,987 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 39.8 MB. Free memory was 19.5 MB in the beginning and 19.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:30:50,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.27 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 25.8 MB in the end (delta: -906.0 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 19:30:50,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.43 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 24.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 19:30:51,000 INFO L168 Benchmark]: Boogie Preprocessor took 32.84 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 23.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 19:30:51,001 INFO L168 Benchmark]: RCFGBuilder took 4718.19 ms. Allocated memory is still 48.2 MB. Free memory was 22.9 MB in the beginning and 21.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-12-02 19:30:51,002 INFO L168 Benchmark]: TraceAbstraction took 247723.30 ms. Allocated memory is still 48.2 MB. Free memory was 21.3 MB in the beginning and 26.7 MB in the end (delta: -5.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:30:51,004 INFO L168 Benchmark]: Witness Printer took 15.47 ms. Allocated memory is still 48.2 MB. Free memory was 26.7 MB in the beginning and 26.4 MB in the end (delta: 326.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:30:51,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 39.8 MB. Free memory was 19.5 MB in the beginning and 19.5 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.27 ms. Allocated memory is still 48.2 MB. Free memory was 24.9 MB in the beginning and 25.8 MB in the end (delta: -906.0 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.43 ms. Allocated memory is still 48.2 MB. Free memory was 25.8 MB in the beginning and 24.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.84 ms. Allocated memory is still 48.2 MB. Free memory was 24.3 MB in the beginning and 23.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 4718.19 ms. Allocated memory is still 48.2 MB. Free memory was 22.9 MB in the beginning and 21.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 247723.30 ms. Allocated memory is still 48.2 MB. Free memory was 21.3 MB in the beginning and 26.7 MB in the end (delta: -5.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 15.47 ms. Allocated memory is still 48.2 MB. Free memory was 26.7 MB in the beginning and 26.4 MB in the end (delta: 326.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L1] int __return_main; [L9] EXPR 1.0 [L9] float main__x = 1.0; [L10] EXPR 2.5 [L10] EXPR main__x / 2.5 [L10] float main__x1 = main__x / 2.5; [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND TRUE main__x1 != main__x [L14] main__x = main__x1 [L15] EXPR 2.5 [L15] EXPR main__x / 2.5 [L15] main__x1 = main__x / 2.5 [L12] COND FALSE !(main__x1 != main__x) [L21] int __tmp_1; [L22] __tmp_1 = main__x == 0 [L23] int __VERIFIER_assert__cond; [L24] __VERIFIER_assert__cond = __tmp_1 [L25] COND TRUE __VERIFIER_assert__cond == 0 [L27] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 247.5s, OverallIterations: 4, TraceHistogramMax: 3, AutomataDifference: 45.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 0 SDslu, 34 SDs, 0 SdLazy, 9 SolverSat, 0 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 13.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 21 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 67.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 5.2s SatisfiabilityAnalysisTime, 36.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 12 QuantifiedInterpolants, 8861 SizeOfPredicates, 13 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 36 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...