./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1011a_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/double_req_bl_1011a_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 84d0ee37d85bbc2c0fd59ce938796111cbf21a8f ............................................................................................................................................................................................................................................................................................. 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/double_req_bl_1011a_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 84d0ee37d85bbc2c0fd59ce938796111cbf21a8f ........................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:55:04,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:04,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:04,832 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:04,833 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:04,836 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:04,838 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:04,841 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:04,844 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:04,845 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:04,846 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:04,846 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:04,847 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:04,848 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:04,849 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:04,851 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:04,851 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:04,854 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:04,856 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:04,857 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:04,858 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:04,860 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:04,862 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:04,863 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:04,863 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:04,864 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:04,865 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:04,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:04,867 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:04,868 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:04,869 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:04,869 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:04,870 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:04,870 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:04,871 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:04,872 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:04,873 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:55:04,888 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:04,889 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:04,890 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:04,890 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:04,890 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:04,890 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:04,891 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:04,891 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:04,892 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:04,892 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:55:04,892 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:04,892 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:04,892 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:04,892 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:04,893 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:04,894 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:04,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:04,894 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:04,894 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:04,894 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:04,895 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:04,895 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:04,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:04,895 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:04,895 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:04,895 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:04,897 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:04,897 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:55:04,897 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:04,897 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:55:04,898 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 -> 84d0ee37d85bbc2c0fd59ce938796111cbf21a8f [2018-11-28 17:55:04,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:04,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:04,954 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:04,955 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:04,956 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:04,957 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1011a_true-unreach-call.c [2018-11-28 17:55:05,029 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eb559e04/6c3676e8fd0946f1a7b5037f04f9677a/FLAG00fa3d8e6 [2018-11-28 17:55:05,465 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:05,465 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1011a_true-unreach-call.c [2018-11-28 17:55:05,475 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eb559e04/6c3676e8fd0946f1a7b5037f04f9677a/FLAG00fa3d8e6 [2018-11-28 17:55:05,824 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3eb559e04/6c3676e8fd0946f1a7b5037f04f9677a [2018-11-28 17:55:05,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:05,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:05,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:05,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:05,837 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:05,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:05" (1/1) ... [2018-11-28 17:55:05,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d7b747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:05, skipping insertion in model container [2018-11-28 17:55:05,842 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:05" (1/1) ... [2018-11-28 17:55:05,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:05,873 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:06,141 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:06,146 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:06,186 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:06,214 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:06,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06 WrapperNode [2018-11-28 17:55:06,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:06,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:06,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:06,216 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:06,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:06,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:06,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:06,252 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:06,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (1/1) ... [2018-11-28 17:55:06,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:06,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:06,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:06,312 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:06,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (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 17:55:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:55:06,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:55:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 17:55:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 17:55:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:06,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:55:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:06,446 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-28 17:55:06,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-28 17:55:06,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:55:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:06,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:06,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:06,910 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:06,910 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:06,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:06 BoogieIcfgContainer [2018-11-28 17:55:06,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:06,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:06,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:06,917 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:06,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:05" (1/3) ... [2018-11-28 17:55:06,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3803ab7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:06, skipping insertion in model container [2018-11-28 17:55:06,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:06" (2/3) ... [2018-11-28 17:55:06,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3803ab7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:06, skipping insertion in model container [2018-11-28 17:55:06,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:06" (3/3) ... [2018-11-28 17:55:06,923 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011a_true-unreach-call.c [2018-11-28 17:55:06,934 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:06,943 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:06,963 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:07,011 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:07,012 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:07,012 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:07,012 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:07,012 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:07,012 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:07,013 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:07,013 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:07,013 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-28 17:55:07,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 17:55:07,040 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:07,041 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:07,044 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:07,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:07,051 INFO L82 PathProgramCache]: Analyzing trace with hash -2010282984, now seen corresponding path program 1 times [2018-11-28 17:55:07,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:07,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:07,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:07,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:07,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:07,203 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 17:55:07,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:07,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:07,211 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:07,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:07,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:07,230 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-28 17:55:07,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:07,254 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-28 17:55:07,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:07,255 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-28 17:55:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:07,264 INFO L225 Difference]: With dead ends: 56 [2018-11-28 17:55:07,264 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 17:55:07,267 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 17:55:07,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 17:55:07,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 17:55:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 17:55:07,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-28 17:55:07,308 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-28 17:55:07,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:07,308 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-28 17:55:07,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:07,309 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-28 17:55:07,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:55:07,310 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:07,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:07,310 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:07,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:07,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1410255941, now seen corresponding path program 1 times [2018-11-28 17:55:07,311 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:07,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:07,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:07,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:07,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:07,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:07,415 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:55:07,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:07 BoogieIcfgContainer [2018-11-28 17:55:07,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:07,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:07,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:07,448 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:07,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:06" (3/4) ... [2018-11-28 17:55:07,452 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:55:07,452 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:07,453 INFO L168 Benchmark]: Toolchain (without parser) took 1623.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -132.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:07,455 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:07,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.10 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:07,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.54 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:07,457 INFO L168 Benchmark]: Boogie Preprocessor took 58.63 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:07,458 INFO L168 Benchmark]: RCFGBuilder took 600.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:07,459 INFO L168 Benchmark]: TraceAbstraction took 534.33 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:07,460 INFO L168 Benchmark]: Witness Printer took 5.00 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 17:55:07,465 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.10 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.54 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.63 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 600.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -168.6 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 534.33 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.00 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: 52]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L47] double x = 0.0; VAL [x=0] [L48] CALL, EXPR fabs_double(x) VAL [\old(x)=0] [L26] __uint32_t high; VAL [\old(x)=0, x=0] [L28] ieee_double_shape_type gh_u; [L29] gh_u.value = (x) [L30] EXPR gh_u.parts.msw [L30] (high) = gh_u.parts.msw [L33] ieee_double_shape_type sh_u; [L34] sh_u.value = (x) [L35] sh_u.parts.msw = (high & 0x7fffffff) [L36] EXPR sh_u.value [L36] (x) = sh_u.value [L38] return x; VAL [\old(x)=0, \result=0, high=22, x=0] [L48] RET, EXPR fabs_double(x) VAL [fabs_double(x)=0, x=0] [L48] double res = fabs_double(x); [L51] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L51] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L52] __VERIFIER_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 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=32occurred 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 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 17:55:09,949 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:09,951 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:09,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:09,975 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:09,977 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:09,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:09,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:09,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:09,989 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:09,992 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:09,993 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:09,994 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:09,995 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:09,999 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:10,000 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:10,001 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:10,012 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:10,016 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:10,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:10,023 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:10,025 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:10,029 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:10,032 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:10,032 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:10,033 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:10,035 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:10,042 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:10,043 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:10,044 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:10,046 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:10,047 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:10,049 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:10,049 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:10,051 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:10,052 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:10,053 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:55:10,079 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:10,080 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:10,080 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:10,081 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:10,082 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:10,082 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:10,082 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:10,082 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:10,082 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:10,083 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:10,083 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:10,083 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:10,083 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:10,083 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:10,083 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:55:10,085 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:55:10,085 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:10,085 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:10,086 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:10,086 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:10,086 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:10,087 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:10,087 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:10,087 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:10,087 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:10,087 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:10,088 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:10,088 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:10,088 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:55:10,088 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:10,088 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:55:10,088 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:55:10,090 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 -> 84d0ee37d85bbc2c0fd59ce938796111cbf21a8f [2018-11-28 17:55:10,159 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:10,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:10,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:10,189 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:10,190 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:10,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1011a_true-unreach-call.c [2018-11-28 17:55:10,260 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6fa5897f/9b6f6164c52a4a0ca58b8dda7f705422/FLAG64731ff4e [2018-11-28 17:55:10,771 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:10,772 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1011a_true-unreach-call.c [2018-11-28 17:55:10,781 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6fa5897f/9b6f6164c52a4a0ca58b8dda7f705422/FLAG64731ff4e [2018-11-28 17:55:11,084 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6fa5897f/9b6f6164c52a4a0ca58b8dda7f705422 [2018-11-28 17:55:11,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:11,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:11,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:11,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:11,096 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:11,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7108c9ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11, skipping insertion in model container [2018-11-28 17:55:11,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:11,129 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:11,335 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:11,343 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:11,370 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:11,408 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:11,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11 WrapperNode [2018-11-28 17:55:11,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:11,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:11,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:11,409 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:11,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:11,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:11,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:11,442 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:11,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (1/1) ... [2018-11-28 17:55:11,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:11,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:11,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:11,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:11,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (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 17:55:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 17:55:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 17:55:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 17:55:11,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:55:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:55:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-28 17:55:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-28 17:55:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:55:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:11,821 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:11,886 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:11,956 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:12,103 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:12,103 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:12,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:12 BoogieIcfgContainer [2018-11-28 17:55:12,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:12,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:12,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:12,109 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:12,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:11" (1/3) ... [2018-11-28 17:55:12,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea23b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:12, skipping insertion in model container [2018-11-28 17:55:12,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:11" (2/3) ... [2018-11-28 17:55:12,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea23b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:12, skipping insertion in model container [2018-11-28 17:55:12,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:12" (3/3) ... [2018-11-28 17:55:12,114 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1011a_true-unreach-call.c [2018-11-28 17:55:12,123 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:12,130 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:12,149 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:12,183 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:12,184 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:12,184 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:12,184 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:12,184 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:12,185 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:12,185 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:12,185 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:12,185 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:12,202 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-11-28 17:55:12,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 17:55:12,208 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:12,209 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:12,211 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:12,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:12,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2010282984, now seen corresponding path program 1 times [2018-11-28 17:55:12,222 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:12,223 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 17:55:12,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:12,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:12,292 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:12,313 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 17:55:12,313 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:12,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:12,327 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:12,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:12,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:12,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:12,352 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-11-28 17:55:12,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:12,385 INFO L93 Difference]: Finished difference Result 56 states and 71 transitions. [2018-11-28 17:55:12,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:12,387 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-28 17:55:12,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:12,397 INFO L225 Difference]: With dead ends: 56 [2018-11-28 17:55:12,398 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 17:55:12,402 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 17:55:12,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 17:55:12,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 17:55:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 17:55:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-28 17:55:12,444 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 17 [2018-11-28 17:55:12,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:12,445 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-28 17:55:12,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-28 17:55:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:55:12,446 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:12,446 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:12,446 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:12,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:12,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1410255941, now seen corresponding path program 1 times [2018-11-28 17:55:12,447 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:12,448 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) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 17:55:12,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:12,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:12,773 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-28 17:55:12,818 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2018-11-28 17:55:12,836 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 55 [2018-11-28 17:55:12,935 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2018-11-28 17:55:12,936 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:12,963 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:12,990 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:13,096 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:13,096 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:91, output treesize:52 [2018-11-28 17:55:13,738 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 17:55:13,738 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:13,753 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:13,753 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 17:55:13,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 17:55:13,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 17:55:13,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:55:13,756 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2018-11-28 17:55:14,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:14,752 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-28 17:55:14,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:55:14,753 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2018-11-28 17:55:14,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:14,755 INFO L225 Difference]: With dead ends: 31 [2018-11-28 17:55:14,755 INFO L226 Difference]: Without dead ends: 28 [2018-11-28 17:55:14,757 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-11-28 17:55:14,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-28 17:55:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-28 17:55:14,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 17:55:14,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-11-28 17:55:14,764 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 19 [2018-11-28 17:55:14,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:14,765 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-11-28 17:55:14,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 17:55:14,765 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-11-28 17:55:14,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 17:55:14,767 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:14,767 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] [2018-11-28 17:55:14,768 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:14,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:14,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1929382976, now seen corresponding path program 1 times [2018-11-28 17:55:14,770 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:14,770 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 17:55:14,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:14,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:14,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:14,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2018-11-28 17:55:15,000 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-11-28 17:55:15,001 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:15,015 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:15,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:15,041 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:64, output treesize:34 [2018-11-28 17:55:15,801 WARN L180 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-11-28 17:55:16,007 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 17:55:16,007 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:16,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:16,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-11-28 17:55:16,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 17:55:16,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 17:55:16,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-11-28 17:55:16,025 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 14 states. [2018-11-28 17:55:17,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:17,948 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-11-28 17:55:17,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 17:55:17,949 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 27 [2018-11-28 17:55:17,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:17,950 INFO L225 Difference]: With dead ends: 28 [2018-11-28 17:55:17,950 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:55:17,951 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2018-11-28 17:55:17,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:55:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:55:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:55:17,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:55:17,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-28 17:55:17,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:17,952 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:55:17,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 17:55:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:55:17,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:55:17,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:55:18,132 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 37) no Hoare annotation was computed. [2018-11-28 17:55:18,133 INFO L448 ceAbstractionStarter]: For program point L32-1(lines 25 39) no Hoare annotation was computed. [2018-11-28 17:55:18,133 INFO L448 ceAbstractionStarter]: For program point L32-2(lines 32 37) no Hoare annotation was computed. [2018-11-28 17:55:18,133 INFO L448 ceAbstractionStarter]: For program point L27-1(lines 27 31) no Hoare annotation was computed. [2018-11-28 17:55:18,134 INFO L444 ceAbstractionStarter]: At program point L27-2(lines 27 31) the Hoare annotation is: (= |fabs_double_#in~x| fabs_double_~x) [2018-11-28 17:55:18,134 INFO L448 ceAbstractionStarter]: For program point fabs_doubleEXIT(lines 25 39) no Hoare annotation was computed. [2018-11-28 17:55:18,134 INFO L451 ceAbstractionStarter]: At program point fabs_doubleENTRY(lines 25 39) the Hoare annotation is: true [2018-11-28 17:55:18,134 INFO L448 ceAbstractionStarter]: For program point fabs_doubleFINAL(lines 25 39) no Hoare annotation was computed. [2018-11-28 17:55:18,134 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:55:18,134 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:55:18,134 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:55:18,135 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 14 24) no Hoare annotation was computed. [2018-11-28 17:55:18,135 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 14 24) no Hoare annotation was computed. [2018-11-28 17:55:18,135 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-28 17:55:18,135 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= |__signbit_double_#in~x| __signbit_double_~x) [2018-11-28 17:55:18,135 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-11-28 17:55:18,135 INFO L451 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 14 24) the Hoare annotation is: true [2018-11-28 17:55:18,135 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:55:18,136 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:55:18,136 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:55:18,136 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:55:18,136 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 41 56) the Hoare annotation is: true [2018-11-28 17:55:18,136 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 41 56) no Hoare annotation was computed. [2018-11-28 17:55:18,136 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-28 17:55:18,136 INFO L448 ceAbstractionStarter]: For program point L51(line 51) no Hoare annotation was computed. [2018-11-28 17:55:18,137 INFO L444 ceAbstractionStarter]: At program point L51-1(line 51) the Hoare annotation is: (and |main_#t~short8| (= (_ +zero 11 53) main_~x~0) (exists ((v_prenex_6 (_ BitVec 64)) (v_arrayElimCell_3 (_ BitVec 32))) (and (= (fp ((_ extract 63 63) v_prenex_6) ((_ extract 62 52) v_prenex_6) ((_ extract 51 0) v_prenex_6)) (_ +zero 11 53)) (= (let ((.cse0 (concat (bvand (_ bv2147483647 32) ((_ extract 63 32) v_prenex_6)) v_arrayElimCell_3))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0)))) [2018-11-28 17:55:18,137 INFO L448 ceAbstractionStarter]: For program point L51-2(line 51) no Hoare annotation was computed. [2018-11-28 17:55:18,137 INFO L444 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: (= (_ +zero 11 53) main_~x~0) [2018-11-28 17:55:18,137 INFO L448 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-11-28 17:55:18,137 INFO L448 ceAbstractionStarter]: For program point L51-4(lines 51 54) no Hoare annotation was computed. [2018-11-28 17:55:18,137 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 41 56) no Hoare annotation was computed. [2018-11-28 17:55:18,138 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2018-11-28 17:55:18,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:18 BoogieIcfgContainer [2018-11-28 17:55:18,151 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:18,151 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:18,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:18,151 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:18,152 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:12" (3/4) ... [2018-11-28 17:55:18,156 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:55:18,164 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-11-28 17:55:18,164 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:55:18,164 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-11-28 17:55:18,165 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:55:18,170 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-28 17:55:18,170 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 17:55:18,171 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:55:18,199 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:55:18,200 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:55:18,237 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:55:18,238 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:18,239 INFO L168 Benchmark]: Toolchain (without parser) took 7149.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 952.7 MB in the beginning and 940.4 MB in the end (delta: 12.3 MB). Peak memory consumption was 149.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:18,240 INFO L168 Benchmark]: CDTParser took 0.57 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 17:55:18,242 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.25 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:18,244 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.88 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:18,244 INFO L168 Benchmark]: Boogie Preprocessor took 44.61 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:18,246 INFO L168 Benchmark]: RCFGBuilder took 616.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:18,246 INFO L168 Benchmark]: TraceAbstraction took 6045.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.4 MB in the end (delta: 164.9 MB). Peak memory consumption was 164.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:18,247 INFO L168 Benchmark]: Witness Printer took 86.73 ms. Allocated memory is still 1.2 GB. Free memory is still 940.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:18,256 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 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 317.25 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.88 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.61 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 616.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6045.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 940.4 MB in the end (delta: 164.9 MB). Peak memory consumption was 164.9 MB. Max. memory is 11.5 GB. * Witness Printer took 86.73 ms. Allocated memory is still 1.2 GB. Free memory is still 940.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 52]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 32 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 69 SDtfs, 23 SDslu, 288 SDs, 0 SdLazy, 151 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 55 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 20 QuantifiedInterpolants, 16848 SizeOfPredicates, 12 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...