./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1032d_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_1032d_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 bc388f4eaa6aadf687b7d35c78a026571921b2b6 ................................................................................................................................................................................................................................................................................................................. 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_1032d_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 bc388f4eaa6aadf687b7d35c78a026571921b2b6 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:55:27,032 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:27,034 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:27,047 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:27,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:27,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:27,051 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:27,061 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:27,063 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:27,064 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:27,065 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:27,065 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:27,067 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:27,068 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:27,069 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:27,070 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:27,072 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:27,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:27,076 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:27,078 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:27,080 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:27,081 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:27,084 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:27,084 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:27,084 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:27,085 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:27,086 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:27,087 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:27,088 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:27,089 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:27,089 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:27,091 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:27,091 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:27,091 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:27,092 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:27,092 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:27,093 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:55:27,109 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:27,109 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:27,110 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:27,110 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:27,112 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:27,112 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:27,112 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:27,112 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:27,112 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:27,112 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:55:27,113 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:27,113 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:27,113 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:27,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:27,113 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:27,115 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:27,115 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:27,115 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:27,115 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:27,116 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:27,116 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:27,116 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:27,117 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:27,117 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:27,117 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:27,117 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:27,117 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:27,118 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:55:27,118 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:27,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:55:27,118 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 -> bc388f4eaa6aadf687b7d35c78a026571921b2b6 [2018-11-28 17:55:27,168 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:27,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:27,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:27,196 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:27,196 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:27,197 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-11-28 17:55:27,272 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea546c89/a5a89901a1654293ac3cd66763769767/FLAGc1bbc0c1f [2018-11-28 17:55:27,753 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:27,754 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-11-28 17:55:27,761 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea546c89/a5a89901a1654293ac3cd66763769767/FLAGc1bbc0c1f [2018-11-28 17:55:28,096 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ea546c89/a5a89901a1654293ac3cd66763769767 [2018-11-28 17:55:28,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:28,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:28,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:28,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:28,107 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:28,108 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658d138d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28, skipping insertion in model container [2018-11-28 17:55:28,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:28,146 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:28,369 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:28,374 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:28,418 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:28,457 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:28,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28 WrapperNode [2018-11-28 17:55:28,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:28,459 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:28,459 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:28,459 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:28,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:28,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:28,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:28,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:28,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (1/1) ... [2018-11-28 17:55:28,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:28,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:28,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:28,580 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:28,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (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 17:55:28,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:55:28,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:55:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:55:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:55:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:55:28,755 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-28 17:55:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-28 17:55:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:55:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:28,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:29,327 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:29,328 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:29,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:29 BoogieIcfgContainer [2018-11-28 17:55:29,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:29,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:29,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:29,334 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:29,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:28" (1/3) ... [2018-11-28 17:55:29,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377938cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:29, skipping insertion in model container [2018-11-28 17:55:29,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:28" (2/3) ... [2018-11-28 17:55:29,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@377938cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:29, skipping insertion in model container [2018-11-28 17:55:29,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:29" (3/3) ... [2018-11-28 17:55:29,338 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d_true-unreach-call.c [2018-11-28 17:55:29,350 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:29,360 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:29,381 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:29,427 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:29,427 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:29,428 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:29,428 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:29,429 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:29,429 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:29,429 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:29,429 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:29,429 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:29,462 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-28 17:55:29,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 17:55:29,468 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:29,470 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 17:55:29,472 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:29,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:29,479 INFO L82 PathProgramCache]: Analyzing trace with hash -288864886, now seen corresponding path program 1 times [2018-11-28 17:55:29,480 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:29,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:29,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:29,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:29,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:29,633 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 17:55:29,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:29,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:29,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:29,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:29,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:29,664 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-28 17:55:29,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:29,692 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2018-11-28 17:55:29,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:29,694 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-28 17:55:29,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:29,703 INFO L225 Difference]: With dead ends: 76 [2018-11-28 17:55:29,703 INFO L226 Difference]: Without dead ends: 38 [2018-11-28 17:55:29,707 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 17:55:29,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-28 17:55:29,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-28 17:55:29,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 17:55:29,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-28 17:55:29,752 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 25 [2018-11-28 17:55:29,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:29,753 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-28 17:55:29,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:29,753 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-28 17:55:29,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 17:55:29,754 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:29,755 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:29,755 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:29,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:29,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1876368369, now seen corresponding path program 1 times [2018-11-28 17:55:29,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:29,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:29,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:29,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:29,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:29,966 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:55:30,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:30 BoogieIcfgContainer [2018-11-28 17:55:30,017 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:30,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:30,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:30,019 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:30,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:29" (3/4) ... [2018-11-28 17:55:30,025 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:55:30,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:30,028 INFO L168 Benchmark]: Toolchain (without parser) took 1927.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:30,032 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:30,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.18 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:30,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.75 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:30,037 INFO L168 Benchmark]: Boogie Preprocessor took 74.03 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:30,040 INFO L168 Benchmark]: RCFGBuilder took 749.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:30,041 INFO L168 Benchmark]: TraceAbstraction took 687.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:30,043 INFO L168 Benchmark]: Witness Printer took 8.89 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 17:55:30,050 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 356.18 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.75 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.03 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 749.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -188.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 687.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. * Witness Printer took 8.89 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: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 31, overapproximation of bitwiseOr at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 86, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = -1.0 / 0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=15032385538] [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; VAL [\old(x)=15032385538, x=15032385538] [L18] ieee_double_shape_type ew_u; [L19] ew_u.value = (x) [L20] EXPR ew_u.parts.msw [L20] (msw) = ew_u.parts.msw [L21] EXPR ew_u.parts.lsw [L21] (lsw) = ew_u.parts.lsw [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L24] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L25] COND FALSE !(exponent_less_1023 < 0) [L31] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L32] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L33] return x; VAL [\old(x)=15032385538, \result=15032385538, exponent_less_1023=0, lsw=0, msw=2147483647, x=15032385538] [L87] RET, EXPR round_double(x) VAL [round_double(x)=15032385538, x=15032385538] [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) VAL [\old(x)=15032385538] [L65] __int32_t hx, lx; VAL [\old(x)=15032385538, x=15032385538] [L67] ieee_double_shape_type ew_u; [L68] ew_u.value = (x) [L69] EXPR ew_u.parts.msw [L69] (hx) = ew_u.parts.msw [L70] EXPR ew_u.parts.lsw [L70] (lx) = ew_u.parts.lsw [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=15032385538, \result=0, hx=2146435072, lx=-2147483648, x=15032385538] [L90] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, res=15032385538, x=15032385538] [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() VAL [res=15032385538, x=15032385538] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 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=42occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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 17:55:32,452 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:32,456 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:32,477 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:32,477 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:32,478 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:32,479 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:32,481 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:32,483 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:32,483 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:32,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:32,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:32,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:32,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:32,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:32,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:32,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:32,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:32,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:32,497 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:32,500 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:32,501 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:32,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:32,509 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:32,511 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:32,512 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:32,513 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:32,513 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:32,516 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:32,517 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:32,517 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:32,519 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:32,520 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:32,520 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:32,521 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:32,521 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:32,522 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:55:32,554 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:32,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:32,556 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:32,560 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:32,560 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:32,561 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:32,561 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:32,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:32,561 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:32,561 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:32,562 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:32,563 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:32,563 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:32,563 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:32,563 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:55:32,564 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:55:32,564 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:32,564 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:32,564 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:32,564 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:32,564 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:32,565 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:32,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:32,566 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:32,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:32,567 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:32,567 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:32,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:32,567 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:55:32,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:32,568 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:55:32,568 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:55:32,568 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 -> bc388f4eaa6aadf687b7d35c78a026571921b2b6 [2018-11-28 17:55:32,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:32,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:32,658 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:32,661 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:32,662 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:32,663 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-11-28 17:55:32,720 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6ae2888/b28c532095f34cc7a20d21f8f9db91c5/FLAG0adae2c1f [2018-11-28 17:55:33,256 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:33,257 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-11-28 17:55:33,265 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6ae2888/b28c532095f34cc7a20d21f8f9db91c5/FLAG0adae2c1f [2018-11-28 17:55:33,564 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f6ae2888/b28c532095f34cc7a20d21f8f9db91c5 [2018-11-28 17:55:33,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:33,570 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:33,571 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:33,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:33,575 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:33,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51390636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33, skipping insertion in model container [2018-11-28 17:55:33,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:33,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:33,615 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:33,890 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:33,897 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:33,943 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:33,984 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:33,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33 WrapperNode [2018-11-28 17:55:33,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:33,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:33,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:33,985 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:33,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:34,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:34,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:34,018 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:34,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (1/1) ... [2018-11-28 17:55:34,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:34,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:34,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:34,138 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:34,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (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 17:55:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 17:55:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:34,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:34,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:34,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:55:34,219 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:55:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:55:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:55:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-28 17:55:34,220 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-28 17:55:34,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:34,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:34,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:55:34,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:34,593 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:34,888 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:35,146 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:35,147 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:35,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:35 BoogieIcfgContainer [2018-11-28 17:55:35,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:35,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:35,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:35,152 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:35,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:33" (1/3) ... [2018-11-28 17:55:35,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e8ceed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:35, skipping insertion in model container [2018-11-28 17:55:35,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:33" (2/3) ... [2018-11-28 17:55:35,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e8ceed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:35, skipping insertion in model container [2018-11-28 17:55:35,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:35" (3/3) ... [2018-11-28 17:55:35,156 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d_true-unreach-call.c [2018-11-28 17:55:35,167 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:35,178 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:35,198 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:35,234 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:35,235 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:35,235 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:35,235 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:35,236 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:35,236 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:35,236 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:35,236 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:35,236 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:35,257 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-28 17:55:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:55:35,265 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:35,267 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 17:55:35,269 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:35,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:35,276 INFO L82 PathProgramCache]: Analyzing trace with hash -16968872, now seen corresponding path program 1 times [2018-11-28 17:55:35,281 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:35,282 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 17:55:35,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:35,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:35,423 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 17:55:35,424 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:35,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:35,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:35,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:35,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:35,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:35,469 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-28 17:55:35,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:35,504 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2018-11-28 17:55:35,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:35,506 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 17:55:35,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:35,517 INFO L225 Difference]: With dead ends: 74 [2018-11-28 17:55:35,517 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 17:55:35,522 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 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 17:55:35,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 17:55:35,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-28 17:55:35,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 17:55:35,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-28 17:55:35,567 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 24 [2018-11-28 17:55:35,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:35,568 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-28 17:55:35,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:35,568 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-28 17:55:35,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:55:35,570 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:35,570 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] [2018-11-28 17:55:35,570 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:35,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:35,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1528384495, now seen corresponding path program 1 times [2018-11-28 17:55:35,572 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:35,572 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 17:55:35,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 17:55:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:35,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:36,068 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 17:55:36,069 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:36,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:36,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:55:36,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:55:36,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:55:36,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:55:36,098 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-11-28 17:55:37,070 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-28 17:55:37,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:37,994 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2018-11-28 17:55:37,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 17:55:37,996 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:55:37,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:38,000 INFO L225 Difference]: With dead ends: 63 [2018-11-28 17:55:38,001 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 17:55:38,003 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-11-28 17:55:38,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 17:55:38,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 33. [2018-11-28 17:55:38,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 17:55:38,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-28 17:55:38,011 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 26 [2018-11-28 17:55:38,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:38,012 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-28 17:55:38,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:55:38,013 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-28 17:55:38,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:55:38,014 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:38,014 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] [2018-11-28 17:55:38,014 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:38,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:38,016 INFO L82 PathProgramCache]: Analyzing trace with hash 707416066, now seen corresponding path program 1 times [2018-11-28 17:55:38,016 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:38,017 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 17:55:38,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:38,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:39,429 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:39,432 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:39,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-11-28 17:55:39,719 WARN L180 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-11-28 17:55:39,789 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 35 [2018-11-28 17:55:39,793 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:39,935 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 35 treesize of output 27 [2018-11-28 17:55:40,042 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-28 17:55:40,050 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-11-28 17:55:40,051 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:40,065 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:40,109 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:40,124 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:40,125 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:57, output treesize:18 [2018-11-28 17:55:41,031 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 17:55:41,032 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:41,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:41,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 17:55:41,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 17:55:41,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 17:55:41,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 17:55:41,055 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 11 states. [2018-11-28 17:55:43,474 WARN L180 SmtUtils]: Spent 490.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 17:55:46,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:46,863 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2018-11-28 17:55:46,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 17:55:46,864 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-28 17:55:46,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:46,866 INFO L225 Difference]: With dead ends: 42 [2018-11-28 17:55:46,866 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 17:55:46,867 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-28 17:55:46,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 17:55:46,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-28 17:55:46,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 17:55:46,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-28 17:55:46,876 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 26 [2018-11-28 17:55:46,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:46,877 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-28 17:55:46,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 17:55:46,877 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-28 17:55:46,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:55:46,878 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:46,879 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] [2018-11-28 17:55:46,879 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:46,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:46,879 INFO L82 PathProgramCache]: Analyzing trace with hash 414013059, now seen corresponding path program 1 times [2018-11-28 17:55:46,880 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:46,880 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 17:55:46,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:46,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:47,132 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 17:55:47,132 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:47,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:47,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:55:47,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:55:47,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:55:47,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:55:47,145 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 7 states. [2018-11-28 17:55:48,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:48,094 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2018-11-28 17:55:48,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 17:55:48,097 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:55:48,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:48,097 INFO L225 Difference]: With dead ends: 41 [2018-11-28 17:55:48,097 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:55:48,098 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:55:48,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:55:48,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:55:48,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:55:48,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:55:48,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-28 17:55:48,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:48,101 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:55:48,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:55:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:55:48,101 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:55:48,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:55:48,401 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:55:48,401 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:55:48,401 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:55:48,402 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 66 71) no Hoare annotation was computed. [2018-11-28 17:55:48,402 INFO L444 ceAbstractionStarter]: At program point L66-2(lines 66 71) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-28 17:55:48,402 INFO L448 ceAbstractionStarter]: For program point L66-3(lines 66 71) no Hoare annotation was computed. [2018-11-28 17:55:48,402 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 64 76) no Hoare annotation was computed. [2018-11-28 17:55:48,402 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 64 76) no Hoare annotation was computed. [2018-11-28 17:55:48,402 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 64 76) the Hoare annotation is: true [2018-11-28 17:55:48,402 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 28) no Hoare annotation was computed. [2018-11-28 17:55:48,404 INFO L448 ceAbstractionStarter]: For program point round_doubleFINAL(lines 14 61) no Hoare annotation was computed. [2018-11-28 17:55:48,404 INFO L448 ceAbstractionStarter]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2018-11-28 17:55:48,405 INFO L451 ceAbstractionStarter]: At program point round_doubleENTRY(lines 14 61) the Hoare annotation is: true [2018-11-28 17:55:48,405 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-28 17:55:48,405 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 53) no Hoare annotation was computed. [2018-11-28 17:55:48,405 INFO L448 ceAbstractionStarter]: For program point round_doubleEXIT(lines 14 61) no Hoare annotation was computed. [2018-11-28 17:55:48,405 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-28 17:55:48,405 INFO L448 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-11-28 17:55:48,407 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 37) no Hoare annotation was computed. [2018-11-28 17:55:48,407 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 59) no Hoare annotation was computed. [2018-11-28 17:55:48,408 INFO L448 ceAbstractionStarter]: For program point L54-1(lines 14 61) no Hoare annotation was computed. [2018-11-28 17:55:48,408 INFO L448 ceAbstractionStarter]: For program point L54-2(lines 54 59) no Hoare annotation was computed. [2018-11-28 17:55:48,408 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-11-28 17:55:48,408 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 22) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-11-28 17:55:48,408 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 22) no Hoare annotation was computed. [2018-11-28 17:55:48,408 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-11-28 17:55:48,409 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 53) no Hoare annotation was computed. [2018-11-28 17:55:48,410 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2018-11-28 17:55:48,411 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:55:48,411 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:55:48,411 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:55:48,411 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:55:48,411 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-11-28 17:55:48,413 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-11-28 17:55:48,413 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-11-28 17:55:48,413 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-28 17:55:48,414 INFO L444 ceAbstractionStarter]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= .cse0 main_~x~0))) [2018-11-28 17:55:48,414 INFO L448 ceAbstractionStarter]: For program point L90-1(lines 90 93) no Hoare annotation was computed. [2018-11-28 17:55:48,414 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-11-28 17:55:48,414 INFO L444 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0) [2018-11-28 17:55:48,414 INFO L448 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-11-28 17:55:48,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:48 BoogieIcfgContainer [2018-11-28 17:55:48,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:48,433 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:48,433 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:48,433 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:48,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:35" (3/4) ... [2018-11-28 17:55:48,439 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:55:48,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:55:48,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-28 17:55:48,448 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-11-28 17:55:48,449 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:55:48,456 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-11-28 17:55:48,457 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 17:55:48,457 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:55:48,492 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:55:48,493 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 17:55:48,559 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:55:48,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:48,560 INFO L168 Benchmark]: Toolchain (without parser) took 14991.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 950.0 MB in the beginning and 897.8 MB in the end (delta: 52.2 MB). Peak memory consumption was 189.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:48,561 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:48,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.87 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:48,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.41 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:48,563 INFO L168 Benchmark]: Boogie Preprocessor took 119.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:48,563 INFO L168 Benchmark]: RCFGBuilder took 1009.60 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:48,564 INFO L168 Benchmark]: TraceAbstraction took 13283.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.8 MB in the end (delta: 196.2 MB). Peak memory consumption was 196.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:48,564 INFO L168 Benchmark]: Witness Printer took 126.61 ms. Allocated memory is still 1.2 GB. Free memory is still 897.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:48,572 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 413.87 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.41 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 119.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1009.60 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: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13283.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 897.8 MB in the end (delta: 196.2 MB). Peak memory consumption was 196.2 MB. Max. memory is 11.5 GB. * Witness Printer took 126.61 ms. Allocated memory is still 1.2 GB. Free memory is still 897.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 13.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 8.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 131 SDslu, 372 SDs, 0 SdLazy, 205 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 49 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 19 QuantifiedInterpolants, 16004 SizeOfPredicates, 14 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...