./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.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/float-newlib/double_req_bl_1051.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 b42939eee3e11712ad53342d1b2656dec849a2d0 ....................................................................................................................................................................................................................................................................................................... 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/float-newlib/double_req_bl_1051.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 b42939eee3e11712ad53342d1b2656dec849a2d0 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:31:24,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:31:24,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:31:24,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:31:24,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:31:24,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:31:24,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:31:24,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:31:24,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:31:24,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:31:24,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:31:24,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:31:24,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:31:24,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:31:24,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:31:24,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:31:24,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:31:24,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:31:24,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:31:24,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:31:24,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:31:24,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:31:24,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:31:24,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:31:24,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:31:24,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:31:24,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:31:24,238 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:31:24,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:31:24,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:31:24,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:31:24,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:31:24,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:31:24,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:31:24,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:31:24,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:31:24,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:31:24,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:31:24,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:31:24,261 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:31:24,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:31:24,263 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:31:24,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:31:24,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:31:24,292 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:31:24,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:31:24,293 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:31:24,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:31:24,293 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:31:24,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:31:24,294 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:31:24,294 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:31:24,294 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:31:24,294 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:31:24,295 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:31:24,295 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:31:24,295 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:31:24,295 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:31:24,296 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:31:24,296 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:31:24,296 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:31:24,297 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:31:24,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:31:24,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:31:24,297 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:31:24,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:31:24,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:31:24,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:31:24,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:31:24,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:31:24,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:31:24,299 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b42939eee3e11712ad53342d1b2656dec849a2d0 [2020-12-02 15:31:24,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:31:24,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:31:24,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:31:24,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:31:24,772 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:31:24,774 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-12-02 15:31:24,849 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe50e540/211d0902be534e51a321141365b42cd8/FLAG7b3b0bd01 [2020-12-02 15:31:25,467 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:31:25,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-12-02 15:31:25,479 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe50e540/211d0902be534e51a321141365b42cd8/FLAG7b3b0bd01 [2020-12-02 15:31:25,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe50e540/211d0902be534e51a321141365b42cd8 [2020-12-02 15:31:25,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:31:25,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:31:25,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:31:25,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:31:25,861 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:31:25,862 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:31:25" (1/1) ... [2020-12-02 15:31:25,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92ecc14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:25, skipping insertion in model container [2020-12-02 15:31:25,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:31:25" (1/1) ... [2020-12-02 15:31:25,879 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:31:25,907 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:31:26,123 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c[2106,2119] [2020-12-02 15:31:26,127 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:31:26,137 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:31:26,178 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c[2106,2119] [2020-12-02 15:31:26,179 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:31:26,199 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:31:26,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26 WrapperNode [2020-12-02 15:31:26,200 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:31:26,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:31:26,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:31:26,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:31:26,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:31:26,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:31:26,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:31:26,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:31:26,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (1/1) ... [2020-12-02 15:31:26,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:31:26,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:31:26,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:31:26,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:31:26,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (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 15:31:26,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 15:31:26,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:31:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-02 15:31:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-02 15:31:26,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-02 15:31:26,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:31:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:31:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-02 15:31:26,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:31:26,940 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:31:26,941 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-02 15:31:26,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:26 BoogieIcfgContainer [2020-12-02 15:31:26,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:31:26,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:31:26,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:31:26,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:31:26,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:31:25" (1/3) ... [2020-12-02 15:31:26,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee643f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:31:26, skipping insertion in model container [2020-12-02 15:31:26,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:26" (2/3) ... [2020-12-02 15:31:26,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee643f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:31:26, skipping insertion in model container [2020-12-02 15:31:26,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:26" (3/3) ... [2020-12-02 15:31:26,967 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-12-02 15:31:27,006 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:31:27,016 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:31:27,033 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:31:27,087 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:31:27,087 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:31:27,088 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:31:27,088 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:31:27,088 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:31:27,088 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:31:27,088 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:31:27,089 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:31:27,111 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-02 15:31:27,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:31:27,120 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:31:27,121 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:31:27,122 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:31:27,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:31:27,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-12-02 15:31:27,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:31:27,140 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090881095] [2020-12-02 15:31:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:31:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:31:27,380 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 15:31:27,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090881095] [2020-12-02 15:31:27,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:31:27,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-02 15:31:27,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024404362] [2020-12-02 15:31:27,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:31:27,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-02 15:31:27,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:31:27,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:31:27,413 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-02 15:31:27,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:31:27,446 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2020-12-02 15:31:27,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:31:27,448 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 15:31:27,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:31:27,477 INFO L225 Difference]: With dead ends: 66 [2020-12-02 15:31:27,478 INFO L226 Difference]: Without dead ends: 31 [2020-12-02 15:31:27,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:31:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-02 15:31:27,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-02 15:31:27,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-02 15:31:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-12-02 15:31:27,527 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-12-02 15:31:27,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:31:27,528 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-12-02 15:31:27,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:31:27,528 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-12-02 15:31:27,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:31:27,529 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:31:27,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:31:27,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 15:31:27,530 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:31:27,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:31:27,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-12-02 15:31:27,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 15:31:27,531 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388189891] [2020-12-02 15:31:27,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 15:31:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:31:27,590 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:31:27,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 15:31:27,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 15:31:27,658 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 15:31:27,658 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 15:31:27,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-02 15:31:27,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:31:27 BoogieIcfgContainer [2020-12-02 15:31:27,720 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:31:27,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:31:27,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:31:27,721 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:31:27,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:26" (3/4) ... [2020-12-02 15:31:27,727 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 15:31:27,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:31:27,733 INFO L168 Benchmark]: Toolchain (without parser) took 1878.71 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.8 MB in the beginning and 36.5 MB in the end (delta: -14.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:31:27,734 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory was 24.7 MB in the beginning and 24.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:31:27,736 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.88 ms. Allocated memory is still 44.0 MB. Free memory was 21.6 MB in the beginning and 22.0 MB in the end (delta: -410.1 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:31:27,737 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.48 ms. Allocated memory is still 44.0 MB. Free memory was 21.9 MB in the beginning and 20.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:31:27,739 INFO L168 Benchmark]: Boogie Preprocessor took 47.21 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.1 MB in the beginning and 38.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:31:27,741 INFO L168 Benchmark]: RCFGBuilder took 650.80 ms. Allocated memory is still 54.5 MB. Free memory was 38.5 MB in the beginning and 31.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:31:27,742 INFO L168 Benchmark]: TraceAbstraction took 768.51 ms. Allocated memory is still 54.5 MB. Free memory was 31.2 MB in the beginning and 36.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-12-02 15:31:27,745 INFO L168 Benchmark]: Witness Printer took 5.93 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 36.5 MB in the end (delta: 303.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:31:27,761 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 44.0 MB. Free memory was 24.7 MB in the beginning and 24.6 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.88 ms. Allocated memory is still 44.0 MB. Free memory was 21.6 MB in the beginning and 22.0 MB in the end (delta: -410.1 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.48 ms. Allocated memory is still 44.0 MB. Free memory was 21.9 MB in the beginning and 20.1 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.21 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.1 MB in the beginning and 38.5 MB in the end (delta: -18.4 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 650.80 ms. Allocated memory is still 54.5 MB. Free memory was 38.5 MB in the beginning and 31.6 MB in the end (delta: 6.9 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 768.51 ms. Allocated memory is still 54.5 MB. Free memory was 31.2 MB in the beginning and 36.8 MB in the end (delta: -5.6 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 5.93 ms. Allocated memory is still 54.5 MB. Free memory was 36.8 MB in the beginning and 36.5 MB in the end (delta: 303.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 95]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 39, overapproximation of bitwiseOr at line 40, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryArithmeticDOUBLE_SMToperation at line 90, overapproximation of someBinaryDOUBLE_SMTComparisonOperation at line 82. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L90] double x = 0.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double res = floor_double(x); [L82] return x != x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L94] COND TRUE !isnan_double(res) [L95] reach_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 15:31:30,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:31:30,367 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:31:30,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:31:30,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:31:30,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:31:30,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:31:30,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:31:30,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:31:30,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:31:30,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:31:30,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:31:30,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:31:30,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:31:30,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:31:30,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:31:30,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:31:30,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:31:30,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:31:30,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:31:30,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:31:30,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:31:30,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:31:30,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:31:30,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:31:30,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:31:30,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:31:30,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:31:30,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:31:30,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:31:30,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:31:30,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:31:30,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:31:30,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:31:30,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:31:30,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:31:30,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:31:30,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:31:30,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:31:30,471 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:31:30,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:31:30,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:31:30,522 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:31:30,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:31:30,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:31:30,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:31:30,525 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:31:30,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:31:30,525 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:31:30,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:31:30,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:31:30,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:31:30,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:31:30,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:31:30,527 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:31:30,527 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:31:30,527 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:31:30,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:31:30,528 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:31:30,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:31:30,529 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:31:30,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:31:30,529 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:31:30,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:31:30,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:31:30,530 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:31:30,530 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:31:30,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:31:30,531 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:31:30,531 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:31:30,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:31:30,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:31:30,532 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:31:30,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b42939eee3e11712ad53342d1b2656dec849a2d0 [2020-12-02 15:31:30,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:31:30,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:31:30,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:31:30,985 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:31:30,986 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:31:30,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-12-02 15:31:31,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b5436099/289bae9ef4a74892bc219aa3470deb55/FLAGf00d4a312 [2020-12-02 15:31:31,629 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:31:31,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c [2020-12-02 15:31:31,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b5436099/289bae9ef4a74892bc219aa3470deb55/FLAGf00d4a312 [2020-12-02 15:31:31,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b5436099/289bae9ef4a74892bc219aa3470deb55 [2020-12-02 15:31:31,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:31:31,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:31:32,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:31:32,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:31:32,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:31:32,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:31:31" (1/1) ... [2020-12-02 15:31:32,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc5235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32, skipping insertion in model container [2020-12-02 15:31:32,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:31:31" (1/1) ... [2020-12-02 15:31:32,026 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:31:32,056 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:31:32,311 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c[2106,2119] [2020-12-02 15:31:32,314 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:31:32,331 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:31:32,365 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1051.c[2106,2119] [2020-12-02 15:31:32,366 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:31:32,391 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:31:32,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32 WrapperNode [2020-12-02 15:31:32,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:31:32,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:31:32,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:31:32,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:31:32,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:31:32,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:31:32,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:31:32,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:31:32,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (1/1) ... [2020-12-02 15:31:32,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:31:32,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:31:32,554 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:31:32,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:31:32,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (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 15:31:32,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:31:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 15:31:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 15:31:32,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:31:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:31:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:31:32,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:31:32,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:31:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:31:32,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:31:33,887 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:31:33,888 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-12-02 15:31:33,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:33 BoogieIcfgContainer [2020-12-02 15:31:33,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:31:33,892 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:31:33,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:31:33,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:31:33,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:31:31" (1/3) ... [2020-12-02 15:31:33,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22edcdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:31:33, skipping insertion in model container [2020-12-02 15:31:33,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:31:32" (2/3) ... [2020-12-02 15:31:33,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22edcdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:31:33, skipping insertion in model container [2020-12-02 15:31:33,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:31:33" (3/3) ... [2020-12-02 15:31:33,901 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051.c [2020-12-02 15:31:33,919 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:31:33,924 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:31:33,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:31:33,967 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:31:33,967 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:31:33,967 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:31:33,968 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:31:33,968 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:31:33,968 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:31:33,968 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:31:33,968 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:31:33,984 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-12-02 15:31:33,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:31:33,991 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:31:33,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:31:33,992 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:31:33,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:31:33,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1930047821, now seen corresponding path program 1 times [2020-12-02 15:31:34,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:31:34,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726715451] [2020-12-02 15:31:34,022 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 15:31:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:31:35,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:31:35,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:31:35,215 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 15:31:35,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:31:35,240 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 15:31:35,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726715451] [2020-12-02 15:31:35,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:31:35,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:31:35,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588781428] [2020-12-02 15:31:35,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:31:35,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:31:35,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:31:35,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:31:35,277 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-12-02 15:31:35,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:31:35,310 INFO L93 Difference]: Finished difference Result 66 states and 104 transitions. [2020-12-02 15:31:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:31:35,312 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 15:31:35,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:31:35,331 INFO L225 Difference]: With dead ends: 66 [2020-12-02 15:31:35,331 INFO L226 Difference]: Without dead ends: 31 [2020-12-02 15:31:35,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:31:35,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-02 15:31:35,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-02 15:31:35,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-02 15:31:35,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 45 transitions. [2020-12-02 15:31:35,379 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 45 transitions. Word has length 11 [2020-12-02 15:31:35,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:31:35,380 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 45 transitions. [2020-12-02 15:31:35,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:31:35,380 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-12-02 15:31:35,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:31:35,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:31:35,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:31:35,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:31:35,590 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:31:35,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:31:35,592 INFO L82 PathProgramCache]: Analyzing trace with hash -1310126896, now seen corresponding path program 1 times [2020-12-02 15:31:35,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:31:35,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036509120] [2020-12-02 15:31:35,596 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 15:31:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:31:36,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-02 15:31:36,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:31:42,021 WARN L197 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 15:31:44,165 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 64)) (ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_6|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (= c_ULTIMATE.start_floor_double_~i0~0 ((_ extract 63 32) ULTIMATE.start_floor_double_~x)) (= (_ +zero 11 53) .cse0) (= .cse1 (_ +zero 11 53))))) is different from false [2020-12-02 15:31:56,580 WARN L197 SmtUtils]: Spent 2.14 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:31:56,606 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 15:31:56,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:32:07,304 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 15:32:07,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036509120] [2020-12-02 15:32:07,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:32:07,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 15:32:07,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816476161] [2020-12-02 15:32:07,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-02 15:32:07,308 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:32:07,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-02 15:32:07,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=40, Unknown=3, NotChecked=12, Total=72 [2020-12-02 15:32:07,310 INFO L87 Difference]: Start difference. First operand 31 states and 45 transitions. Second operand 9 states. [2020-12-02 15:32:21,117 WARN L197 SmtUtils]: Spent 5.22 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:32:24,894 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_6|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x))) (= (_ +zero 11 53) .cse0) (= .cse1 (_ +zero 11 53))))) (= roundNearestTiesToEven c_~CRM) (not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr c_ULTIMATE.start_floor_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32))) (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 64)) (ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_6|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_6|)))) (and (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (= c_ULTIMATE.start_floor_double_~i0~0 ((_ extract 63 32) ULTIMATE.start_floor_double_~x)) (= (_ +zero 11 53) .cse2) (= .cse3 (_ +zero 11 53)))))) is different from false [2020-12-02 15:32:46,160 WARN L197 SmtUtils]: Spent 6.56 s on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-12-02 15:32:49,684 WARN L838 $PredicateComparison]: unable to prove that (and (not (bvslt (bvadd (bvand (_ bv2047 32) (bvashr c_ULTIMATE.start_floor_double_~i0~0 (_ bv20 32))) (_ bv4294966273 32)) (_ bv20 32))) (exists ((|v_ULTIMATE.start_main_#t~nondet22_6| (_ BitVec 64)) (ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_6|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_6|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_6|)))) (and (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (= (_ +zero 11 53) .cse0) (= (bvadd c_ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_floor_double_~x) (_ bv20 32)))) (= .cse1 (_ +zero 11 53)))))) is different from false [2020-12-02 15:32:51,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:32:51,084 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2020-12-02 15:32:51,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-02 15:32:51,085 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2020-12-02 15:32:51,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:32:51,086 INFO L225 Difference]: With dead ends: 53 [2020-12-02 15:32:51,086 INFO L226 Difference]: Without dead ends: 37 [2020-12-02 15:32:51,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 70.3s TimeCoverageRelationStatistics Valid=29, Invalid=68, Unknown=5, NotChecked=54, Total=156 [2020-12-02 15:32:51,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-12-02 15:32:51,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 23. [2020-12-02 15:32:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-02 15:32:51,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2020-12-02 15:32:51,093 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 12 [2020-12-02 15:32:51,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:32:51,094 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2020-12-02 15:32:51,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-02 15:32:51,094 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2020-12-02 15:32:51,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:32:51,095 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:32:51,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:32:51,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:32:51,297 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:32:51,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:32:51,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1803097798, now seen corresponding path program 1 times [2020-12-02 15:32:51,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:32:51,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1239568086] [2020-12-02 15:32:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 15:32:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:32:52,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-02 15:32:52,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:32:58,666 WARN L197 SmtUtils]: Spent 2.10 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-02 15:33:09,882 WARN L197 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:33:27,870 WARN L197 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:33:30,001 WARN L838 $PredicateComparison]: unable to prove that (and (not (bvslt c_ULTIMATE.start_floor_double_~j0~0 (_ bv20 32))) (exists ((ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_8|)))) (and (= (_ +zero 11 53) .cse0) (= (bvadd c_ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_floor_double_~x) (_ bv20 32)))) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (= (_ +zero 11 53) .cse1))))) is different from false [2020-12-02 15:33:30,045 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 15:33:30,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:33:40,466 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 15:33:45,649 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-02 15:33:51,159 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-02 15:33:52,432 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 15:33:52,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1239568086] [2020-12-02 15:33:52,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:33:52,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 15:33:52,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032447802] [2020-12-02 15:33:52,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 15:33:52,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:33:52,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 15:33:52,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=62, Unknown=8, NotChecked=16, Total=110 [2020-12-02 15:33:52,436 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand 11 states. [2020-12-02 15:34:11,113 WARN L197 SmtUtils]: Spent 5.29 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:34:14,960 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_8|)))) (and (= c_ULTIMATE.start_floor_double_~i0~0 ((_ extract 63 32) ULTIMATE.start_floor_double_~x)) (= (_ +zero 11 53) .cse0) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (= (_ +zero 11 53) .cse1)))) (exists ((|v_ULTIMATE.start_main_#t~nondet22_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_8|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_8|)))) (and (= (_ +zero 11 53) .cse2) (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x))) (= (_ +zero 11 53) .cse3)))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-02 15:34:20,141 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_8| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_8|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_8|)))) (and (= c_ULTIMATE.start_floor_double_~i0~0 ((_ extract 63 32) ULTIMATE.start_floor_double_~x)) (= (_ +zero 11 53) .cse0) (= (fp.div roundNearestTiesToEven .cse0 .cse1) (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (= (_ +zero 11 53) .cse1)))) (exists ((ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_8| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_8| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_8|))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_8|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_8|)))) (and (= (_ +zero 11 53) .cse2) (= (bvadd c_ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_floor_double_~x) (_ bv20 32)))) (= (fp.div roundNearestTiesToEven .cse2 .cse3) (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (= (_ +zero 11 53) .cse3))))) is different from false [2020-12-02 15:34:47,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:34:47,405 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2020-12-02 15:34:47,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 15:34:47,590 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-12-02 15:34:47,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:34:47,591 INFO L225 Difference]: With dead ends: 28 [2020-12-02 15:34:47,591 INFO L226 Difference]: Without dead ends: 13 [2020-12-02 15:34:47,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 95.8s TimeCoverageRelationStatistics Valid=33, Invalid=76, Unknown=13, NotChecked=60, Total=182 [2020-12-02 15:34:47,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-02 15:34:47,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-02 15:34:47,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-02 15:34:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-12-02 15:34:47,597 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 12 [2020-12-02 15:34:47,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:34:47,597 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-12-02 15:34:47,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-02 15:34:47,597 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-12-02 15:34:47,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 15:34:47,598 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:34:47,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:34:47,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 15:34:47,807 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:34:47,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:34:47,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2009966502, now seen corresponding path program 1 times [2020-12-02 15:34:47,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:34:47,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388530554] [2020-12-02 15:34:47,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-02 15:34:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:34:48,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-02 15:34:48,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:34:50,973 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x))) (= .cse1 (_ +zero 11 53)))))) is different from false [2020-12-02 15:34:53,173 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x))) (= .cse1 (_ +zero 11 53))))) (= c_ULTIMATE.start_floor_double_~i0~0 ((_ extract 63 32) c_ULTIMATE.start_floor_double_~x)) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-02 15:34:55,339 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x))) (= .cse1 (_ +zero 11 53))))) (= roundNearestTiesToEven c_~CRM) (= (bvadd c_ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) c_ULTIMATE.start_floor_double_~x) (_ bv20 32))))) is different from false [2020-12-02 15:34:57,550 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse1 (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse0 (_ +zero 11 53)) (= (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_floor_double_~x) (_ bv20 32))) (_ bv4294965249 32)) (_ bv0 32)) (= (fp ((_ extract 63 63) |c_ULTIMATE.start_floor_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_floor_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_floor_double_#res|)) (fp.add roundNearestTiesToEven .cse1 .cse1)) (= (fp.div roundNearestTiesToEven .cse0 .cse2) .cse1) (= .cse2 (_ +zero 11 53))))) is different from false [2020-12-02 15:34:57,593 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:34:57,596 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-02 15:34:57,991 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 15:34:57,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:35:01,930 WARN L197 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 25 [2020-12-02 15:35:06,113 WARN L197 SmtUtils]: Spent 2.19 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-02 15:35:09,082 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 29 [2020-12-02 15:35:10,402 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 15:35:10,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388530554] [2020-12-02 15:35:10,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:35:10,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2020-12-02 15:35:10,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099004145] [2020-12-02 15:35:10,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-02 15:35:10,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:35:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-02 15:35:10,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=93, Unknown=4, NotChecked=84, Total=210 [2020-12-02 15:35:10,405 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 15 states. [2020-12-02 15:35:14,285 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((|v_ULTIMATE.start_floor_double_#res_13| (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) |v_ULTIMATE.start_floor_double_#res_13|) ((_ extract 62 52) |v_ULTIMATE.start_floor_double_#res_13|) ((_ extract 51 0) |v_ULTIMATE.start_floor_double_#res_13|)))) (or (not (= (let ((.cse3 (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x)))) (fp.add c_~CRM .cse3 .cse3)) .cse4)) (not (fp.eq .cse4 .cse4))))))) (and (or (not (= (_ bv2047 32) (bvand (_ bv2047 32) (bvashr c_ULTIMATE.start_floor_double_~i0~0 (_ bv20 32))))) .cse0) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse1 (_ +zero 11 53)) (= (fp.div c_~CRM .cse1 .cse2) (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x))) (= .cse2 (_ +zero 11 53))))) (or (not (= (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) c_ULTIMATE.start_floor_double_~x) (_ bv20 32))) (_ bv4294965249 32)) (_ bv0 32))) .cse0) (or .cse0 (not (= (bvadd c_ULTIMATE.start_floor_double_~j0~0 (_ bv4294966272 32)) (_ bv0 32)))))) is different from false [2020-12-02 15:35:16,676 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x))) (= .cse1 (_ +zero 11 53))))) (= c_ULTIMATE.start_floor_double_~i0~0 ((_ extract 63 32) c_ULTIMATE.start_floor_double_~x)) (or (not (= (_ bv2047 32) (bvand (_ bv2047 32) (bvashr c_ULTIMATE.start_floor_double_~i0~0 (_ bv20 32))))) (forall ((|v_ULTIMATE.start_floor_double_#res_13| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_floor_double_#res_13|) ((_ extract 62 52) |v_ULTIMATE.start_floor_double_#res_13|) ((_ extract 51 0) |v_ULTIMATE.start_floor_double_#res_13|)))) (or (not (= (let ((.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x)))) (fp.add c_~CRM .cse2 .cse2)) .cse3)) (not (fp.eq .cse3 .cse3)))))) (= roundNearestTiesToEven c_~CRM)) is different from false [2020-12-02 15:35:19,036 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp.div c_~CRM .cse0 .cse1) (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x))) (= .cse1 (_ +zero 11 53))))) (= roundNearestTiesToEven c_~CRM) (= (bvadd c_ULTIMATE.start_floor_double_~j0~0 (_ bv1023 32)) (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) c_ULTIMATE.start_floor_double_~x) (_ bv20 32)))) (or (forall ((|v_ULTIMATE.start_floor_double_#res_13| (_ BitVec 64))) (let ((.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_floor_double_#res_13|) ((_ extract 62 52) |v_ULTIMATE.start_floor_double_#res_13|) ((_ extract 51 0) |v_ULTIMATE.start_floor_double_#res_13|)))) (or (not (= (let ((.cse2 (fp ((_ extract 63 63) c_ULTIMATE.start_floor_double_~x) ((_ extract 62 52) c_ULTIMATE.start_floor_double_~x) ((_ extract 51 0) c_ULTIMATE.start_floor_double_~x)))) (fp.add c_~CRM .cse2 .cse2)) .cse3)) (not (fp.eq .cse3 .cse3))))) (not (= (bvadd c_ULTIMATE.start_floor_double_~j0~0 (_ bv4294966272 32)) (_ bv0 32))))) is different from false [2020-12-02 15:35:22,007 WARN L838 $PredicateComparison]: unable to prove that (and (not (let ((.cse0 (fp ((_ extract 63 63) |c_ULTIMATE.start_floor_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_floor_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_floor_double_#res|)))) (fp.eq .cse0 .cse0))) (exists ((ULTIMATE.start_floor_double_~x (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet21_10| (_ BitVec 64)) (|v_ULTIMATE.start_main_#t~nondet22_10| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet21_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet21_10|))) (.cse2 (fp ((_ extract 63 63) ULTIMATE.start_floor_double_~x) ((_ extract 62 52) ULTIMATE.start_floor_double_~x) ((_ extract 51 0) ULTIMATE.start_floor_double_~x))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 62 52) |v_ULTIMATE.start_main_#t~nondet22_10|) ((_ extract 51 0) |v_ULTIMATE.start_main_#t~nondet22_10|)))) (and (= .cse1 (_ +zero 11 53)) (= (bvadd (bvand (_ bv2047 32) (bvashr ((_ extract 63 32) ULTIMATE.start_floor_double_~x) (_ bv20 32))) (_ bv4294965249 32)) (_ bv0 32)) (= (fp ((_ extract 63 63) |c_ULTIMATE.start_floor_double_#res|) ((_ extract 62 52) |c_ULTIMATE.start_floor_double_#res|) ((_ extract 51 0) |c_ULTIMATE.start_floor_double_#res|)) (fp.add roundNearestTiesToEven .cse2 .cse2)) (= (fp.div roundNearestTiesToEven .cse1 .cse3) .cse2) (= .cse3 (_ +zero 11 53)))))) is different from false [2020-12-02 15:35:23,993 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-02 15:35:23,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:35:23,995 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-12-02 15:35:23,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-02 15:35:23,995 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 12 [2020-12-02 15:35:23,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:35:23,996 INFO L225 Difference]: With dead ends: 13 [2020-12-02 15:35:23,996 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 15:35:23,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 32.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=8, NotChecked=216, Total=380 [2020-12-02 15:35:23,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 15:35:23,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 15:35:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 15:35:23,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 15:35:23,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-02 15:35:23,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:35:23,998 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 15:35:23,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-12-02 15:35:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 15:35:23,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 15:35:24,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 15:35:24,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 15:35:29,580 WARN L197 SmtUtils]: Spent 5.31 s on a formula simplification that was a NOOP. DAG size: 36 [2020-12-02 15:35:33,187 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 15:35:33,188 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:226) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:176) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 34 more [2020-12-02 15:35:33,197 INFO L168 Benchmark]: Toolchain (without parser) took 241198.78 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 41.8 MB in the beginning and 53.4 MB in the end (delta: -11.6 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:33,197 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 46.1 MB. Free memory was 25.6 MB in the beginning and 25.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:35:33,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.92 ms. Allocated memory is still 65.0 MB. Free memory was 41.5 MB in the beginning and 44.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:33,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.97 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 42.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:33,200 INFO L168 Benchmark]: Boogie Preprocessor took 90.55 ms. Allocated memory is still 65.0 MB. Free memory was 42.7 MB in the beginning and 40.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:33,200 INFO L168 Benchmark]: RCFGBuilder took 1337.64 ms. Allocated memory is still 65.0 MB. Free memory was 40.9 MB in the beginning and 36.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:33,201 INFO L168 Benchmark]: TraceAbstraction took 239302.65 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 35.5 MB in the beginning and 53.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:33,207 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 46.1 MB. Free memory was 25.6 MB in the beginning and 25.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 388.92 ms. Allocated memory is still 65.0 MB. Free memory was 41.5 MB in the beginning and 44.7 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 67.97 ms. Allocated memory is still 65.0 MB. Free memory was 44.7 MB in the beginning and 42.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.55 ms. Allocated memory is still 65.0 MB. Free memory was 42.7 MB in the beginning and 40.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1337.64 ms. Allocated memory is still 65.0 MB. Free memory was 40.9 MB in the beginning and 36.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 239302.65 ms. Allocated memory was 65.0 MB in the beginning and 83.9 MB in the end (delta: 18.9 MB). Free memory was 35.5 MB in the beginning and 53.4 MB in the end (delta: -17.9 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...