./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0250b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0250b_true-unreach-call.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4dddb731074a9a249891d6adbc7c778d25efe28d ................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0250b_true-unreach-call.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4dddb731074a9a249891d6adbc7c778d25efe28d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:57:05,936 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:57:05,939 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:57:05,957 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:57:05,958 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:57:05,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:57:05,962 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:57:05,974 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:57:05,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:57:05,979 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:57:05,981 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:57:05,982 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:57:05,983 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:57:05,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:57:05,987 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:57:05,993 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:57:05,995 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:57:05,999 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:57:06,002 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:57:06,007 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:57:06,009 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:57:06,013 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:57:06,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:57:06,018 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:57:06,019 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:57:06,020 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:57:06,021 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:57:06,024 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:57:06,028 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:57:06,030 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:57:06,031 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:57:06,032 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:57:06,033 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:57:06,034 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:57:06,035 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:57:06,035 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:57:06,036 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:57:06,061 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:57:06,062 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:57:06,063 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:57:06,064 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:57:06,065 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:57:06,066 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:57:06,066 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:57:06,066 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:57:06,066 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:57:06,067 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:57:06,067 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:57:06,068 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:57:06,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:57:06,068 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:57:06,068 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:57:06,069 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:57:06,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:57:06,069 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:57:06,069 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:57:06,070 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:57:06,070 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:57:06,070 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:57:06,070 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:57:06,070 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:57:06,070 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:57:06,071 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:57:06,073 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:57:06,073 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:57:06,073 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:57:06,074 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:57:06,074 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-11-28 17:57:06,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:57:06,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:57:06,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:57:06,175 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:57:06,176 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:57:06,177 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-28 17:57:06,244 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5941646b/bc8e6f79604a4e0ea81eb82724e258a2/FLAG727d7d0d7 [2018-11-28 17:57:06,782 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:57:06,783 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-28 17:57:06,796 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5941646b/bc8e6f79604a4e0ea81eb82724e258a2/FLAG727d7d0d7 [2018-11-28 17:57:07,064 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5941646b/bc8e6f79604a4e0ea81eb82724e258a2 [2018-11-28 17:57:07,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:57:07,070 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:57:07,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:57:07,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:57:07,075 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:57:07,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4e5b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07, skipping insertion in model container [2018-11-28 17:57:07,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,091 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:57:07,138 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:57:07,491 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:57:07,502 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:57:07,583 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:57:07,614 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:57:07,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07 WrapperNode [2018-11-28 17:57:07,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:57:07,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:57:07,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:57:07,616 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:57:07,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:57:07,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:57:07,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:57:07,737 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:57:07,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (1/1) ... [2018-11-28 17:57:07,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:57:07,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:57:07,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:57:07,812 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:57:07,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (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 [2018-11-28 17:57:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:57:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:57:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-28 17:57:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-28 17:57:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 17:57:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 17:57:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:57:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:57:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:57:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:57:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 17:57:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 17:57:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:57:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:57:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:57:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:57:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:57:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 17:57:07,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 17:57:07,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:57:08,640 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:57:08,640 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 17:57:08,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:08 BoogieIcfgContainer [2018-11-28 17:57:08,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:57:08,642 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:57:08,642 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:57:08,645 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:57:08,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:57:07" (1/3) ... [2018-11-28 17:57:08,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@839d0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:08, skipping insertion in model container [2018-11-28 17:57:08,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:07" (2/3) ... [2018-11-28 17:57:08,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@839d0bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:08, skipping insertion in model container [2018-11-28 17:57:08,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:08" (3/3) ... [2018-11-28 17:57:08,649 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-11-28 17:57:08,660 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:57:08,670 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:57:08,688 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:57:08,722 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:57:08,723 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:57:08,724 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:57:08,724 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:57:08,724 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:57:08,724 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:57:08,724 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:57:08,725 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:57:08,725 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:57:08,749 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-11-28 17:57:08,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 17:57:08,757 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:08,758 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:57:08,760 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:08,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:08,765 INFO L82 PathProgramCache]: Analyzing trace with hash 257035693, now seen corresponding path program 1 times [2018-11-28 17:57:08,767 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:57:08,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:57:08,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:57:08,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:08,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:57:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:08,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:57:08,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:08,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:57:08,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:57:08,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:57:08,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:57:08,990 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-11-28 17:57:09,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:57:09,023 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2018-11-28 17:57:09,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:57:09,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 17:57:09,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:57:09,036 INFO L225 Difference]: With dead ends: 144 [2018-11-28 17:57:09,036 INFO L226 Difference]: Without dead ends: 72 [2018-11-28 17:57:09,041 INFO L631 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 [2018-11-28 17:57:09,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-28 17:57:09,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-28 17:57:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-28 17:57:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-11-28 17:57:09,090 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-11-28 17:57:09,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:57:09,090 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-11-28 17:57:09,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:57:09,091 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-11-28 17:57:09,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:57:09,092 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:09,092 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:57:09,092 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:09,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:09,093 INFO L82 PathProgramCache]: Analyzing trace with hash -225488588, now seen corresponding path program 1 times [2018-11-28 17:57:09,093 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:57:09,093 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:57:09,094 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:57:09,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:09,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:57:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:57:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:57:09,233 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:57:09,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:57:09 BoogieIcfgContainer [2018-11-28 17:57:09,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:57:09,311 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:57:09,311 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:57:09,311 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:57:09,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:08" (3/4) ... [2018-11-28 17:57:09,316 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:57:09,317 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:57:09,317 INFO L168 Benchmark]: Toolchain (without parser) took 2248.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -106.8 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:09,320 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:57:09,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.60 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 935.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:09,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:09,322 INFO L168 Benchmark]: Boogie Preprocessor took 74.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:57:09,323 INFO L168 Benchmark]: RCFGBuilder took 829.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:09,324 INFO L168 Benchmark]: TraceAbstraction took 668.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:57:09,324 INFO L168 Benchmark]: Witness Printer took 5.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:57:09,329 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 544.60 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 935.2 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 120.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 829.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 668.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450968, \old(huge_floor)=6442450957, \old(one_asin)=6442450960, \old(one_sqrt)=6442450958, \old(pio2_hi_asin)=6442450959, \old(pio2_lo_asin)=6442450952, \old(pio4_hi_asin)=6442450961, \old(pS0_asin)=6442450966, \old(pS1_asin)=6442450962, \old(pS2_asin)=6442450946, \old(pS3_asin)=6442450965, \old(pS4_asin)=6442450954, \old(pS5_asin)=6442450951, \old(qS1_asin)=6442450969, \old(qS2_asin)=6442450955, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450967, \old(tiny_sqrt)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = -1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L157] ieee_float_shape_type gf_u; [L158] gf_u.value = (x) [L159] EXPR gf_u.word [L159] (hx) = gf_u.word [L161] ix = hx & 0x7fffffff VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L162] COND TRUE ix == 0x3f800000 [L164] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L232] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 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=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.24-91b1670 [2018-11-28 17:57:11,862 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:57:11,864 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:57:11,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:57:11,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:57:11,880 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:57:11,881 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:57:11,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:57:11,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:57:11,886 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:57:11,887 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:57:11,888 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:57:11,889 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:57:11,891 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:57:11,892 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:57:11,893 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:57:11,894 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:57:11,896 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:57:11,899 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:57:11,901 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:57:11,902 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:57:11,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:57:11,906 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:57:11,907 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:57:11,907 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:57:11,908 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:57:11,910 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:57:11,911 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:57:11,912 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:57:11,915 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:57:11,915 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:57:11,916 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:57:11,916 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:57:11,916 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:57:11,922 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:57:11,923 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:57:11,923 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:57:11,954 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:57:11,955 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:57:11,956 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:57:11,956 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:57:11,956 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:57:11,957 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:57:11,957 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:57:11,957 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:57:11,957 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:57:11,957 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:57:11,957 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:57:11,959 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:57:11,959 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:57:11,960 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:57:11,960 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:57:11,960 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:57:11,962 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:57:11,962 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:57:11,962 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:57:11,963 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:57:11,963 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:57:11,963 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:57:11,964 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:57:11,964 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:57:11,964 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:57:11,964 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:57:11,964 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:57:11,964 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:57:11,965 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:57:11,965 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:57:11,965 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:57:11,965 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:57:11,965 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-11-28 17:57:12,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:57:12,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:57:12,057 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:57:12,058 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:57:12,060 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:57:12,060 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-28 17:57:12,129 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/266f80d65/300f17e0611b4307bd2440bf239b0bd6/FLAG1b6447b8a [2018-11-28 17:57:12,619 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:57:12,620 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-28 17:57:12,630 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/266f80d65/300f17e0611b4307bd2440bf239b0bd6/FLAG1b6447b8a [2018-11-28 17:57:12,961 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/266f80d65/300f17e0611b4307bd2440bf239b0bd6 [2018-11-28 17:57:12,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:57:12,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:57:12,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:57:12,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:57:12,973 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:57:12,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:12" (1/1) ... [2018-11-28 17:57:12,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188fa07f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:12, skipping insertion in model container [2018-11-28 17:57:12,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:57:12" (1/1) ... [2018-11-28 17:57:12,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:57:13,020 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:57:13,333 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:57:13,341 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:57:13,454 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:57:13,485 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:57:13,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13 WrapperNode [2018-11-28 17:57:13,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:57:13,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:57:13,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:57:13,487 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:57:13,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:57:13,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:57:13,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:57:13,606 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:57:13,617 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,659 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (1/1) ... [2018-11-28 17:57:13,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:57:13,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:57:13,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:57:13,700 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:57:13,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (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 [2018-11-28 17:57:13,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:57:13,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:57:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-28 17:57:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-28 17:57:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 17:57:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 17:57:13,760 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 17:57:13,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:57:13,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:57:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 17:57:13,762 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 17:57:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:57:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:57:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:57:13,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:57:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 17:57:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 17:57:13,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 17:57:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:57:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:57:14,215 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:57:25,182 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:57:25,273 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:57:26,443 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:57:26,473 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:57:26,473 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-11-28 17:57:26,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:26 BoogieIcfgContainer [2018-11-28 17:57:26,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:57:26,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:57:26,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:57:26,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:57:26,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:57:12" (1/3) ... [2018-11-28 17:57:26,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49923f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:26, skipping insertion in model container [2018-11-28 17:57:26,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:57:13" (2/3) ... [2018-11-28 17:57:26,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49923f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:57:26, skipping insertion in model container [2018-11-28 17:57:26,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:26" (3/3) ... [2018-11-28 17:57:26,485 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-11-28 17:57:26,494 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:57:26,502 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:57:26,521 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:57:26,557 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:57:26,558 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:57:26,558 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:57:26,558 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:57:26,558 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:57:26,558 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:57:26,558 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:57:26,558 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:57:26,558 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:57:26,578 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-11-28 17:57:26,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 17:57:26,585 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:26,586 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:57:26,589 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:26,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:26,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1204794971, now seen corresponding path program 1 times [2018-11-28 17:57:26,600 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:57:26,601 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 17:57:26,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:26,871 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:57:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:57:26,894 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:57:26,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:26,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:57:26,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:57:26,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:57:26,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:57:26,939 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-11-28 17:57:26,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:57:26,980 INFO L93 Difference]: Finished difference Result 142 states and 212 transitions. [2018-11-28 17:57:26,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:57:26,982 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-28 17:57:26,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:57:26,998 INFO L225 Difference]: With dead ends: 142 [2018-11-28 17:57:27,000 INFO L226 Difference]: Without dead ends: 71 [2018-11-28 17:57:27,007 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:57:27,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-11-28 17:57:27,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-11-28 17:57:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 17:57:27,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-11-28 17:57:27,085 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 20 [2018-11-28 17:57:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:57:27,086 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-11-28 17:57:27,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:57:27,086 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-11-28 17:57:27,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 17:57:27,090 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:27,091 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:57:27,091 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:27,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:27,092 INFO L82 PathProgramCache]: Analyzing trace with hash -624565231, now seen corresponding path program 1 times [2018-11-28 17:57:27,093 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:57:27,095 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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) [2018-11-28 17:57:27,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 17:57:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:27,380 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:57:27,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:57:27,629 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:57:27,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:27,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:57:27,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:57:27,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:57:27,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:57:27,656 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-11-28 17:57:36,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:57:36,018 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2018-11-28 17:57:36,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:57:36,019 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-28 17:57:36,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:57:36,025 INFO L225 Difference]: With dead ends: 83 [2018-11-28 17:57:36,026 INFO L226 Difference]: Without dead ends: 73 [2018-11-28 17:57:36,029 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:57:36,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-28 17:57:36,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-11-28 17:57:36,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 17:57:36,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2018-11-28 17:57:36,049 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 21 [2018-11-28 17:57:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:57:36,049 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2018-11-28 17:57:36,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:57:36,050 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2018-11-28 17:57:36,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:57:36,051 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:36,052 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:57:36,052 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:36,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:36,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2002478333, now seen corresponding path program 1 times [2018-11-28 17:57:36,053 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:57:36,053 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 17:57:36,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:36,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:57:39,754 WARN L180 SmtUtils]: Spent 760.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-28 17:57:42,689 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 5 [2018-11-28 17:57:42,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:57:42,694 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:57:42,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:42,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 17:57:42,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 17:57:42,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 17:57:42,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:57:42,717 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand 9 states. [2018-11-28 17:57:47,813 WARN L180 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 17:57:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:57:55,677 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2018-11-28 17:57:55,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:57:55,685 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 17:57:55,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:57:55,687 INFO L225 Difference]: With dead ends: 80 [2018-11-28 17:57:55,687 INFO L226 Difference]: Without dead ends: 73 [2018-11-28 17:57:55,690 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:57:55,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-28 17:57:55,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-11-28 17:57:55,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-11-28 17:57:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2018-11-28 17:57:55,716 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 22 [2018-11-28 17:57:55,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:57:55,717 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2018-11-28 17:57:55,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 17:57:55,717 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2018-11-28 17:57:55,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:57:55,718 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:57:55,718 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:57:55,719 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:57:55,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:57:55,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1628950099, now seen corresponding path program 1 times [2018-11-28 17:57:55,719 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:57:55,719 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 17:57:55,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:57:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:57:56,928 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:57:57,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:57:57,099 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:57:57,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:57:57,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:57:57,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:57:57,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:57:57,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:57:57,134 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 7 states. [2018-11-28 17:58:02,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:02,588 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2018-11-28 17:58:02,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 17:58:02,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 17:58:02,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:02,592 INFO L225 Difference]: With dead ends: 84 [2018-11-28 17:58:02,592 INFO L226 Difference]: Without dead ends: 66 [2018-11-28 17:58:02,592 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:58:02,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-11-28 17:58:02,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-11-28 17:58:02,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-11-28 17:58:02,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2018-11-28 17:58:02,602 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 24 [2018-11-28 17:58:02,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:02,603 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2018-11-28 17:58:02,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:58:02,603 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2018-11-28 17:58:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-28 17:58:02,606 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:02,606 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:58:02,606 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:02,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:02,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1429916512, now seen corresponding path program 1 times [2018-11-28 17:58:02,607 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:02,607 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 17:58:02,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:03,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:03,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:04,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:58:04,142 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:04,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:04,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:58:04,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:58:04,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:58:04,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:58:04,179 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states. [2018-11-28 17:58:07,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:07,045 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-11-28 17:58:07,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 17:58:07,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-11-28 17:58:07,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:07,048 INFO L225 Difference]: With dead ends: 66 [2018-11-28 17:58:07,048 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:58:07,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:58:07,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:58:07,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:58:07,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:58:07,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:58:07,050 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-11-28 17:58:07,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:07,050 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:58:07,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:58:07,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:58:07,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:58:07,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:58:07,276 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-28 17:58:07,392 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-11-28 17:58:07,392 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-11-28 17:58:07,392 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-11-28 17:58:07,392 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:58:07,393 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:58:07,393 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:58:07,393 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-11-28 17:58:07,393 INFO L451 ceAbstractionStarter]: At program point L130-2(lines 130 134) the Hoare annotation is: true [2018-11-28 17:58:07,393 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-11-28 17:58:07,393 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-11-28 17:58:07,393 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-11-28 17:58:07,393 INFO L448 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-11-28 17:58:07,395 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 128 141) no Hoare annotation was computed. [2018-11-28 17:58:07,395 INFO L448 ceAbstractionStarter]: For program point L135-2(lines 135 139) no Hoare annotation was computed. [2018-11-28 17:58:07,395 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:58:07,395 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:58:07,395 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:58:07,395 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:58:07,397 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-11-28 17:58:07,397 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-11-28 17:58:07,397 INFO L448 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-11-28 17:58:07,397 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-11-28 17:58:07,397 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-11-28 17:58:07,398 INFO L448 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-11-28 17:58:07,398 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-28 17:58:07,398 INFO L448 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-11-28 17:58:07,398 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-11-28 17:58:07,398 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-28 17:58:07,400 INFO L448 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-11-28 17:58:07,400 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-28 17:58:07,400 INFO L448 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-11-28 17:58:07,400 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-11-28 17:58:07,401 INFO L448 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-11-28 17:58:07,401 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-11-28 17:58:07,401 INFO L444 ceAbstractionStarter]: At program point L156-2(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-11-28 17:58:07,401 INFO L448 ceAbstractionStarter]: For program point L156-3(lines 156 160) no Hoare annotation was computed. [2018-11-28 17:58:07,401 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-11-28 17:58:07,401 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-11-28 17:58:07,401 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-11-28 17:58:07,402 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-11-28 17:58:07,407 INFO L444 ceAbstractionStarter]: At program point L199-2(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-28 17:58:07,407 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-11-28 17:58:07,407 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-11-28 17:58:07,408 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-11-28 17:58:07,408 INFO L448 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-11-28 17:58:07,408 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 196 214) no Hoare annotation was computed. [2018-11-28 17:58:07,408 INFO L448 ceAbstractionStarter]: For program point L204-2(lines 204 208) no Hoare annotation was computed. [2018-11-28 17:58:07,408 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-11-28 17:58:07,408 INFO L444 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-11-28 17:58:07,409 INFO L448 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-11-28 17:58:07,409 INFO L451 ceAbstractionStarter]: At program point L98-2(lines 98 107) the Hoare annotation is: true [2018-11-28 17:58:07,409 INFO L448 ceAbstractionStarter]: For program point L98-3(lines 62 127) no Hoare annotation was computed. [2018-11-28 17:58:07,409 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-11-28 17:58:07,409 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-11-28 17:58:07,409 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-11-28 17:58:07,409 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-11-28 17:58:07,409 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-11-28 17:58:07,410 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-11-28 17:58:07,410 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-11-28 17:58:07,410 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-11-28 17:58:07,410 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-11-28 17:58:07,410 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-11-28 17:58:07,410 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-11-28 17:58:07,410 INFO L448 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-11-28 17:58:07,410 INFO L448 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-11-28 17:58:07,411 INFO L451 ceAbstractionStarter]: At program point L67-2(lines 67 71) the Hoare annotation is: true [2018-11-28 17:58:07,411 INFO L448 ceAbstractionStarter]: For program point L67-3(lines 67 71) no Hoare annotation was computed. [2018-11-28 17:58:07,411 INFO L448 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-11-28 17:58:07,411 INFO L451 ceAbstractionStarter]: At program point L121-2(lines 121 125) the Hoare annotation is: true [2018-11-28 17:58:07,411 INFO L448 ceAbstractionStarter]: For program point L121-3(lines 121 125) no Hoare annotation was computed. [2018-11-28 17:58:07,411 INFO L448 ceAbstractionStarter]: For program point L84-2(lines 84 85) no Hoare annotation was computed. [2018-11-28 17:58:07,411 INFO L451 ceAbstractionStarter]: At program point L84-3(lines 84 85) the Hoare annotation is: true [2018-11-28 17:58:07,411 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-11-28 17:58:07,412 INFO L448 ceAbstractionStarter]: For program point L84-4(lines 84 85) no Hoare annotation was computed. [2018-11-28 17:58:07,412 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-11-28 17:58:07,424 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,427 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,427 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,427 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,428 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,428 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,428 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,428 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,439 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,439 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,439 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,440 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,440 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,440 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,440 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,441 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:58:07 BoogieIcfgContainer [2018-11-28 17:58:07,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:58:07,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:58:07,449 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:58:07,449 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:58:07,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:57:26" (3/4) ... [2018-11-28 17:58:07,455 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:58:07,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 17:58:07,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:58:07,462 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-28 17:58:07,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:58:07,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-11-28 17:58:07,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-28 17:58:07,471 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-11-28 17:58:07,471 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-28 17:58:07,472 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:58:07,472 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:58:07,500 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:58:07,502 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) [2018-11-28 17:58:07,557 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:58:07,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:58:07,558 INFO L168 Benchmark]: Toolchain (without parser) took 54592.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.7 MB in the beginning and 867.2 MB in the end (delta: 85.5 MB). Peak memory consumption was 215.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:07,559 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:58:07,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.08 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 935.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:07,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:07,561 INFO L168 Benchmark]: Boogie Preprocessor took 90.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:58:07,561 INFO L168 Benchmark]: RCFGBuilder took 12777.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:07,562 INFO L168 Benchmark]: TraceAbstraction took 40972.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.9 MB in the end (delta: 203.2 MB). Peak memory consumption was 203.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:07,563 INFO L168 Benchmark]: Witness Printer took 108.44 ms. Allocated memory is still 1.2 GB. Free memory was 873.9 MB in the beginning and 867.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:07,566 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 518.08 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 935.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 118.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 90.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 12777.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 39.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 40972.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.9 MB in the end (delta: 203.2 MB). Peak memory consumption was 203.2 MB. Max. memory is 11.5 GB. * Witness Printer took 108.44 ms. Allocated memory is still 1.2 GB. Free memory was 873.9 MB in the beginning and 867.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-11-28 17:58:07,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,578 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,578 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,578 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-28 17:58:07,578 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. SAFE Result, 40.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 29.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 378 SDtfs, 201 SDslu, 1421 SDs, 0 SdLazy, 187 SolverSat, 23 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 22.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 209 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 19548 SizeOfPredicates, 16 NumberOfNonLiveVariables, 606 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...