./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1052d_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_1052d_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 204277589f1e9105606b7fb7cfd8af760c5fd585 ..................................................................................................................................................................................................................................................................................................... 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_1052d_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 204277589f1e9105606b7fb7cfd8af760c5fd585 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:55:43,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:43,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:43,842 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:43,842 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:43,844 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:43,845 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:43,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:43,849 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:43,850 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:43,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:43,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:43,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:43,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:43,854 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:43,855 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:43,856 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:43,858 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:43,860 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:43,862 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:43,863 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:43,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:43,867 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:43,868 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:43,868 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:43,869 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:43,870 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:43,871 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:43,872 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:43,873 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:43,873 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:43,874 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:43,874 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:43,874 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:43,875 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:43,876 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:43,877 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:55:43,901 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:43,904 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:43,905 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:43,905 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:43,906 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:43,907 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:43,907 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:43,907 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:43,907 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:43,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:55:43,908 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:43,908 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:43,908 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:43,908 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:43,908 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:43,908 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:43,911 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:43,911 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:43,912 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:43,912 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:43,912 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:43,912 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:43,912 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:43,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:43,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:43,913 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:43,913 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:43,913 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:55:43,914 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:43,916 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:55:43,916 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 -> 204277589f1e9105606b7fb7cfd8af760c5fd585 [2018-11-28 17:55:43,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:43,991 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:43,998 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:44,000 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:44,000 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:44,001 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-11-28 17:55:44,077 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a7c1cde/6da549cd108e4252a042f291a1e0378d/FLAG2287fe97b [2018-11-28 17:55:44,564 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:44,567 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-11-28 17:55:44,576 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a7c1cde/6da549cd108e4252a042f291a1e0378d/FLAG2287fe97b [2018-11-28 17:55:44,892 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a7c1cde/6da549cd108e4252a042f291a1e0378d [2018-11-28 17:55:44,896 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:44,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:44,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:44,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:44,903 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:44,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:44" (1/1) ... [2018-11-28 17:55:44,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27498764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:44, skipping insertion in model container [2018-11-28 17:55:44,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:44" (1/1) ... [2018-11-28 17:55:44,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:44,942 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:45,229 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:45,239 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:45,292 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:45,326 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:45,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45 WrapperNode [2018-11-28 17:55:45,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:45,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:45,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:45,329 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:45,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:45,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:45,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:45,372 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:45,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (1/1) ... [2018-11-28 17:55:45,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:45,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:45,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:45,570 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:45,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (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 17:55:45,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:55:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:55:45,655 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-11-28 17:55:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-11-28 17:55:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:45,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:55:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:45,656 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-28 17:55:45,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-28 17:55:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:45,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:55:45,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:45,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:46,297 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:46,297 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:46,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:46 BoogieIcfgContainer [2018-11-28 17:55:46,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:46,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:46,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:46,302 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:46,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:44" (1/3) ... [2018-11-28 17:55:46,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588ca634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:46, skipping insertion in model container [2018-11-28 17:55:46,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:45" (2/3) ... [2018-11-28 17:55:46,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@588ca634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:46, skipping insertion in model container [2018-11-28 17:55:46,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:46" (3/3) ... [2018-11-28 17:55:46,307 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d_true-unreach-call.c [2018-11-28 17:55:46,318 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:46,327 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:46,346 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:46,380 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:46,380 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:46,381 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:46,381 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:46,381 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:46,381 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:46,382 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:46,382 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:46,382 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:46,404 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-11-28 17:55:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:55:46,411 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:46,412 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 17:55:46,415 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:46,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:46,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2018-11-28 17:55:46,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:46,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:46,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:46,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:46,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:46,575 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 17:55:46,578 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:46,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:46,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:46,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:46,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:46,603 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-11-28 17:55:46,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:46,632 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-11-28 17:55:46,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:46,634 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-28 17:55:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:46,645 INFO L225 Difference]: With dead ends: 94 [2018-11-28 17:55:46,645 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 17:55:46,649 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 17:55:46,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 17:55:46,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-28 17:55:46,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-28 17:55:46,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-11-28 17:55:46,693 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-11-28 17:55:46,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:46,694 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-11-28 17:55:46,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:46,694 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-11-28 17:55:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 17:55:46,696 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:46,696 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 17:55:46,696 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:46,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:46,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2018-11-28 17:55:46,697 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:46,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:46,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:46,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:46,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:46,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:46,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:46,814 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:55:46,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:46 BoogieIcfgContainer [2018-11-28 17:55:46,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:46,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:46,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:46,853 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:46,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:46" (3/4) ... [2018-11-28 17:55:46,857 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:55:46,857 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:46,858 INFO L168 Benchmark]: Toolchain (without parser) took 1960.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -113.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,859 INFO L168 Benchmark]: CDTParser took 0.18 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 17:55:46,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.25 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.17 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,862 INFO L168 Benchmark]: Boogie Preprocessor took 195.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,863 INFO L168 Benchmark]: RCFGBuilder took 729.84 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,864 INFO L168 Benchmark]: TraceAbstraction took 553.19 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: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:46,865 INFO L168 Benchmark]: Witness Printer took 4.55 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 17:55:46,870 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 429.25 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 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 43.17 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 195.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -177.0 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 729.84 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: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 553.19 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: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.55 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=6442450948, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] CALL, EXPR floor_double(x) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, x=0] [L26] COND TRUE j0 < 20 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=0] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=0] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [\old(x)=0, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=0] [L99] RET, EXPR floor_double(x) VAL [floor_double(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] double res = floor_double(x); [L102] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L102] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 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=51occurred 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, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 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 17:55:49,410 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:49,412 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:49,425 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:49,425 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:49,426 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:49,428 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:49,430 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:49,432 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:49,433 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:49,434 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:49,434 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:49,435 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:49,436 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:49,437 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:49,438 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:49,439 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:49,442 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:49,444 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:49,446 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:49,447 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:49,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:49,451 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:49,451 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:49,452 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:49,453 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:49,454 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:49,455 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:49,456 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:49,457 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:49,458 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:49,459 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:49,459 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:49,459 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:49,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:49,462 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:49,462 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:55:49,478 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:49,479 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:49,479 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:49,480 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:49,481 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:49,481 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:49,481 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:49,481 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:49,481 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:49,482 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:49,482 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:49,482 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:49,482 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:49,482 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:49,482 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:55:49,483 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:55:49,484 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:49,484 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:49,485 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:49,485 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:49,485 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:49,485 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:49,485 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:49,485 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:49,487 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:49,487 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:49,487 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:49,487 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:49,487 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:55:49,487 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:49,488 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:55:49,488 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:55:49,488 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 -> 204277589f1e9105606b7fb7cfd8af760c5fd585 [2018-11-28 17:55:49,526 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:49,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:49,545 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:49,546 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:49,547 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:49,547 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-11-28 17:55:49,610 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14552d2e6/a67d34da0b4d4e5fba3a7f04581de7bb/FLAG5278f07e5 [2018-11-28 17:55:50,048 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:50,049 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-11-28 17:55:50,062 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14552d2e6/a67d34da0b4d4e5fba3a7f04581de7bb/FLAG5278f07e5 [2018-11-28 17:55:50,412 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14552d2e6/a67d34da0b4d4e5fba3a7f04581de7bb [2018-11-28 17:55:50,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:50,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:50,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:50,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:50,424 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:50,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622274dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50, skipping insertion in model container [2018-11-28 17:55:50,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:50,463 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:50,694 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:50,703 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:50,754 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:50,790 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:50,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50 WrapperNode [2018-11-28 17:55:50,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:50,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:50,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:50,792 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:50,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,838 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:50,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:50,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:50,839 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:50,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (1/1) ... [2018-11-28 17:55:50,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:50,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:50,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:50,897 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:50,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (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 17:55:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-11-28 17:55:51,034 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-11-28 17:55:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 17:55:51,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:55:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:55:51,035 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-28 17:55:51,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-28 17:55:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:51,036 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:51,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:55:51,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:51,323 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:53,007 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:53,083 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:53,083 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:53,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:53 BoogieIcfgContainer [2018-11-28 17:55:53,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:53,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:53,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:53,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:53,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:50" (1/3) ... [2018-11-28 17:55:53,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79efb3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:53, skipping insertion in model container [2018-11-28 17:55:53,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:50" (2/3) ... [2018-11-28 17:55:53,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79efb3f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:53, skipping insertion in model container [2018-11-28 17:55:53,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:53" (3/3) ... [2018-11-28 17:55:53,092 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d_true-unreach-call.c [2018-11-28 17:55:53,102 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:53,109 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:53,127 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:53,159 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:53,160 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:53,160 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:53,160 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:53,160 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:53,161 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:53,161 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:53,161 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:53,161 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:53,182 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-11-28 17:55:53,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 17:55:53,189 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:53,190 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 17:55:53,192 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:53,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:53,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2018-11-28 17:55:53,202 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:53,202 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 17:55:53,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:53,279 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:53,300 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 17:55:53,301 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:53,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:53,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:53,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:53,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:53,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:53,333 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-11-28 17:55:53,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:53,362 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-11-28 17:55:53,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:53,364 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-28 17:55:53,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:53,375 INFO L225 Difference]: With dead ends: 94 [2018-11-28 17:55:53,375 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 17:55:53,383 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 17:55:53,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 17:55:53,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-28 17:55:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-28 17:55:53,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-11-28 17:55:53,437 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-11-28 17:55:53,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:53,437 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-11-28 17:55:53,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:53,438 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-11-28 17:55:53,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 17:55:53,439 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:53,439 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 17:55:53,440 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:53,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:53,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2018-11-28 17:55:53,441 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:53,441 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 17:55:53,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:53,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:53,857 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 17:55:53,858 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:53,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:53,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:55:53,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:55:53,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:55:53,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:55:53,877 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 7 states. [2018-11-28 17:55:54,409 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-28 17:55:54,699 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-28 17:55:57,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:57,812 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2018-11-28 17:55:57,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 17:55:57,815 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-28 17:55:57,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:57,818 INFO L225 Difference]: With dead ends: 80 [2018-11-28 17:55:57,818 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 17:55:57,820 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-11-28 17:55:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 17:55:57,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-28 17:55:57,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 17:55:57,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-28 17:55:57,828 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-11-28 17:55:57,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:57,828 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-28 17:55:57,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:55:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-28 17:55:57,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:55:57,830 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:57,830 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] [2018-11-28 17:55:57,830 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:57,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:57,831 INFO L82 PathProgramCache]: Analyzing trace with hash 180598350, now seen corresponding path program 1 times [2018-11-28 17:55:57,831 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:57,831 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 17:55:57,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:57,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:01,676 WARN L180 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 17:56:01,683 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 17:56:01,683 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:01,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:01,699 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 17:56:01,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 17:56:01,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 17:56:01,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:56:01,700 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-28 17:56:05,328 WARN L180 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 17:56:06,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:06,638 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-28 17:56:06,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:56:06,648 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-28 17:56:06,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:06,649 INFO L225 Difference]: With dead ends: 52 [2018-11-28 17:56:06,649 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 17:56:06,650 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:56:06,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 17:56:06,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-28 17:56:06,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 17:56:06,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-28 17:56:06,656 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-11-28 17:56:06,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:06,657 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-28 17:56:06,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 17:56:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-28 17:56:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:56:06,658 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:06,658 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 17:56:06,659 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:06,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:06,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1037458242, now seen corresponding path program 1 times [2018-11-28 17:56:06,659 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:06,660 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 17:56:06,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:06,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:06,842 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 45 treesize of output 39 [2018-11-28 17:56:06,847 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 39 treesize of output 36 [2018-11-28 17:56:06,865 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 27 treesize of output 15 [2018-11-28 17:56:06,865 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 17:56:06,869 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:56:06,872 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:56:06,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:56:06,879 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-11-28 17:56:06,971 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 17:56:06,972 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:06,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:06,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:56:06,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:56:06,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:56:06,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:56:06,991 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-11-28 17:56:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:07,643 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-28 17:56:07,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:56:07,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 17:56:07,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:07,645 INFO L225 Difference]: With dead ends: 44 [2018-11-28 17:56:07,645 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 17:56:07,646 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:56:07,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 17:56:07,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 17:56:07,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 17:56:07,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-28 17:56:07,655 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-11-28 17:56:07,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:07,656 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-28 17:56:07,656 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:56:07,656 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-28 17:56:07,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 17:56:07,657 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:07,657 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] [2018-11-28 17:56:07,657 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:07,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:07,658 INFO L82 PathProgramCache]: Analyzing trace with hash -729750026, now seen corresponding path program 1 times [2018-11-28 17:56:07,658 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:07,658 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 17:56:07,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:07,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:07,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:07,985 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 17:56:07,986 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:08,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:08,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 17:56:08,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 17:56:08,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 17:56:08,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:56:08,001 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-11-28 17:56:08,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:08,871 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-11-28 17:56:08,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:56:08,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-28 17:56:08,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:08,872 INFO L225 Difference]: With dead ends: 57 [2018-11-28 17:56:08,873 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 17:56:08,873 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:56:08,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 17:56:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 17:56:08,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 17:56:08,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-11-28 17:56:08,881 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-11-28 17:56:08,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:08,881 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-11-28 17:56:08,881 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 17:56:08,881 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-11-28 17:56:08,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 17:56:08,883 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:08,883 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] [2018-11-28 17:56:08,884 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:08,884 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:08,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1407604295, now seen corresponding path program 1 times [2018-11-28 17:56:08,884 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:08,884 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-28 17:56:08,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:09,062 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:09,084 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 45 treesize of output 39 [2018-11-28 17:56:09,092 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 39 treesize of output 36 [2018-11-28 17:56:09,114 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 27 treesize of output 15 [2018-11-28 17:56:09,114 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 17:56:09,123 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:56:09,126 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:56:09,129 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:56:09,130 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-11-28 17:56:09,471 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 17:56:09,471 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:09,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:09,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-28 17:56:09,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-28 17:56:09,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-28 17:56:09,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-28 17:56:09,485 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-11-28 17:56:10,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:10,478 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-11-28 17:56:10,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 17:56:10,479 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-11-28 17:56:10,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:10,481 INFO L225 Difference]: With dead ends: 33 [2018-11-28 17:56:10,481 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:56:10,483 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-11-28 17:56:10,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:56:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:56:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:56:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:56:10,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-28 17:56:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:10,486 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:56:10,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-28 17:56:10,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:56:10,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:56:10,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:56:10,713 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-11-28 17:56:10,868 WARN L180 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-11-28 17:56:10,997 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-11-28 17:56:10,998 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-11-28 17:56:10,998 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-11-28 17:56:10,998 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-11-28 17:56:10,998 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (or (= floor_double_~x |floor_double_#in~x|) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-11-28 17:56:10,999 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-11-28 17:56:10,999 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-11-28 17:56:10,999 INFO L448 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-11-28 17:56:10,999 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-11-28 17:56:10,999 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-11-28 17:56:10,999 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-11-28 17:56:10,999 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-11-28 17:56:10,999 INFO L448 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-11-28 17:56:11,000 INFO L451 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-11-28 17:56:11,001 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-11-28 17:56:11,001 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-11-28 17:56:11,001 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-11-28 17:56:11,001 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2018-11-28 17:56:11,001 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2018-11-28 17:56:11,001 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-11-28 17:56:11,001 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-11-28 17:56:11,002 INFO L448 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-11-28 17:56:11,002 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-11-28 17:56:11,002 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-11-28 17:56:11,002 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-11-28 17:56:11,002 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-11-28 17:56:11,002 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-11-28 17:56:11,002 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:56:11,002 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:56:11,003 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:56:11,003 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 79 89) no Hoare annotation was computed. [2018-11-28 17:56:11,003 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 79 89) no Hoare annotation was computed. [2018-11-28 17:56:11,003 INFO L448 ceAbstractionStarter]: For program point L82-1(lines 82 86) no Hoare annotation was computed. [2018-11-28 17:56:11,003 INFO L444 ceAbstractionStarter]: At program point L82-2(lines 82 86) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0)) (= |__signbit_double_#in~x| __signbit_double_~x)) [2018-11-28 17:56:11,003 INFO L448 ceAbstractionStarter]: For program point L82-3(lines 82 86) no Hoare annotation was computed. [2018-11-28 17:56:11,004 INFO L451 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 79 89) the Hoare annotation is: true [2018-11-28 17:56:11,005 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:56:11,006 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0) [2018-11-28 17:56:11,006 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:56:11,006 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:56:11,006 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 91 108) the Hoare annotation is: true [2018-11-28 17:56:11,006 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 91 108) no Hoare annotation was computed. [2018-11-28 17:56:11,006 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 91 108) no Hoare annotation was computed. [2018-11-28 17:56:11,006 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-28 17:56:11,007 INFO L448 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-11-28 17:56:11,007 INFO L444 ceAbstractionStarter]: At program point L102-1(line 102) the Hoare annotation is: (or (and (= (let ((.cse0 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= (_ +zero 11 53) main_~x~0) |main_#t~short10|) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-11-28 17:56:11,007 INFO L448 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-11-28 17:56:11,007 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-11-28 17:56:11,007 INFO L444 ceAbstractionStarter]: At program point L99(line 99) the Hoare annotation is: (or (= (_ +zero 11 53) main_~x~0) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-11-28 17:56:11,008 INFO L448 ceAbstractionStarter]: For program point L99-1(line 99) no Hoare annotation was computed. [2018-11-28 17:56:11,008 INFO L448 ceAbstractionStarter]: For program point L102-4(lines 102 105) no Hoare annotation was computed. [2018-11-28 17:56:11,019 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 17:56:11,023 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 17:56:11,025 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 17:56:11,025 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 17:56:11,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:56:11 BoogieIcfgContainer [2018-11-28 17:56:11,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:56:11,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:56:11,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:56:11,028 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:56:11,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:53" (3/4) ... [2018-11-28 17:56:11,034 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:56:11,040 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-11-28 17:56:11,041 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:56:11,041 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-11-28 17:56:11,041 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:56:11,049 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-11-28 17:56:11,049 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 17:56:11,050 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:56:11,080 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) [2018-11-28 17:56:11,080 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x [2018-11-28 17:56:11,134 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:56:11,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:56:11,139 INFO L168 Benchmark]: Toolchain (without parser) took 20721.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.4 MB). Free memory was 954.0 MB in the beginning and 768.2 MB in the end (delta: 185.8 MB). Peak memory consumption was 258.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:11,141 INFO L168 Benchmark]: CDTParser took 0.14 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 17:56:11,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.19 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 936.6 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:11,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.29 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 17:56:11,143 INFO L168 Benchmark]: Boogie Preprocessor took 58.53 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 17:56:11,143 INFO L168 Benchmark]: RCFGBuilder took 2186.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.4 MB). Free memory was 936.6 MB in the beginning and 1.0 GB in the end (delta: -101.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:11,144 INFO L168 Benchmark]: TraceAbstraction took 17943.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 775.2 MB in the end (delta: 262.9 MB). Peak memory consumption was 262.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:11,144 INFO L168 Benchmark]: Witness Printer took 109.59 ms. Allocated memory is still 1.1 GB. Free memory was 775.2 MB in the beginning and 768.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:11,154 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 372.19 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 936.6 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.29 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 58.53 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. * RCFGBuilder took 2186.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.4 MB). Free memory was 936.6 MB in the beginning and 1.0 GB in the end (delta: -101.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17943.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 775.2 MB in the end (delta: 262.9 MB). Peak memory consumption was 262.9 MB. Max. memory is 11.5 GB. * Witness Printer took 109.59 ms. Allocated memory is still 1.1 GB. Free memory was 775.2 MB in the beginning and 768.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: 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: 82]: Loop Invariant [2018-11-28 17:56:11,159 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 17:56:11,160 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x - InvariantResult [Line: 19]: Loop Invariant [2018-11-28 17:56:11,160 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 17:56:11,164 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. SAFE Result, 17.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 11.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 216 SDtfs, 208 SDslu, 619 SDs, 0 SdLazy, 281 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 8.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 67 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 137 ConstructedInterpolants, 23 QuantifiedInterpolants, 21818 SizeOfPredicates, 21 NumberOfNonLiveVariables, 413 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...