./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1092c_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_1092c_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 7089bbc1d64fdab3968ddd6407c4dd9659b97437 ................................................................................................................................................................................................................................................................................................................... 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_1092c_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 7089bbc1d64fdab3968ddd6407c4dd9659b97437 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:56:06,223 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:56:06,224 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:56:06,241 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:56:06,241 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:56:06,242 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:56:06,245 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:56:06,248 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:56:06,250 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:56:06,251 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:56:06,252 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:56:06,252 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:56:06,254 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:56:06,255 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:56:06,257 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:56:06,264 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:56:06,266 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:56:06,267 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:56:06,271 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:56:06,274 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:56:06,276 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:56:06,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:56:06,282 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:56:06,282 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:56:06,282 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:56:06,284 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:56:06,288 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:56:06,289 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:56:06,290 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:56:06,292 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:56:06,292 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:56:06,293 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:56:06,294 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:56:06,294 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:56:06,295 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:56:06,296 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:56:06,297 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:56:06,317 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:56:06,318 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:56:06,318 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:56:06,318 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:56:06,319 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:56:06,319 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:56:06,319 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:56:06,320 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:56:06,320 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:56:06,320 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:56:06,320 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:56:06,320 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:56:06,320 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:56:06,320 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:56:06,321 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:56:06,321 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:56:06,321 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:56:06,321 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:56:06,321 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:56:06,321 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:56:06,322 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:56:06,322 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:56:06,322 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:56:06,322 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:56:06,322 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:56:06,322 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:56:06,323 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:56:06,323 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:56:06,323 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:56:06,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:56:06,323 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 -> 7089bbc1d64fdab3968ddd6407c4dd9659b97437 [2018-11-28 17:56:06,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:56:06,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:56:06,389 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:56:06,390 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:56:06,391 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:56:06,391 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-11-28 17:56:06,440 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b611e913c/9aa1e5aad96f4f7f9c58d569b7506607/FLAG34504cf81 [2018-11-28 17:56:06,904 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:56:06,904 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-11-28 17:56:06,914 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b611e913c/9aa1e5aad96f4f7f9c58d569b7506607/FLAG34504cf81 [2018-11-28 17:56:07,257 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b611e913c/9aa1e5aad96f4f7f9c58d569b7506607 [2018-11-28 17:56:07,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:56:07,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:56:07,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:56:07,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:56:07,267 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:56:07,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,273 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e3e48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07, skipping insertion in model container [2018-11-28 17:56:07,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:56:07,307 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:56:07,586 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:56:07,594 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:56:07,649 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:56:07,678 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:56:07,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07 WrapperNode [2018-11-28 17:56:07,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:56:07,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:56:07,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:56:07,681 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:56:07,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:56:07,729 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:56:07,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:56:07,729 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:56:07,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... [2018-11-28 17:56:07,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:56:07,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:56:07,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:56:07,915 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:56:07,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:56:07,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:56:07,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:56:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:56:07,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:56:07,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:56:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:56:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:56:07,998 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:56:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-28 17:56:07,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-28 17:56:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:56:07,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:56:07,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:56:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:56:08,001 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:56:08,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:56:08,649 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:56:08,649 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:56:08,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:08 BoogieIcfgContainer [2018-11-28 17:56:08,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:56:08,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:56:08,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:56:08,655 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:56:08,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:56:07" (1/3) ... [2018-11-28 17:56:08,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd5da8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:08, skipping insertion in model container [2018-11-28 17:56:08,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:07" (2/3) ... [2018-11-28 17:56:08,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd5da8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:08, skipping insertion in model container [2018-11-28 17:56:08,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:08" (3/3) ... [2018-11-28 17:56:08,659 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c_true-unreach-call.c [2018-11-28 17:56:08,668 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:56:08,677 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:56:08,696 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:56:08,731 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:56:08,731 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:56:08,732 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:56:08,732 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:56:08,732 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:56:08,732 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:56:08,733 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:56:08,733 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:56:08,733 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:56:08,753 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-28 17:56:08,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 17:56:08,759 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:08,760 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:08,763 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:08,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:08,770 INFO L82 PathProgramCache]: Analyzing trace with hash -661893902, now seen corresponding path program 1 times [2018-11-28 17:56:08,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:56:08,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:56:08,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:08,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:08,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:08,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:08,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:08,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:56:08,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:56:08,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:56:08,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:56:08,969 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-11-28 17:56:08,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:08,995 INFO L93 Difference]: Finished difference Result 92 states and 135 transitions. [2018-11-28 17:56:08,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:56:08,996 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-28 17:56:08,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:09,006 INFO L225 Difference]: With dead ends: 92 [2018-11-28 17:56:09,006 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 17:56:09,009 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 17:56:09,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 17:56:09,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-28 17:56:09,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 17:56:09,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2018-11-28 17:56:09,062 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 25 [2018-11-28 17:56:09,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:09,062 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2018-11-28 17:56:09,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:56:09,063 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-11-28 17:56:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 17:56:09,065 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:09,065 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 17:56:09,065 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:09,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:09,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1235447049, now seen corresponding path program 1 times [2018-11-28 17:56:09,066 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:56:09,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:56:09,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:09,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:09,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:56:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:56:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:56:09,311 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:56:09,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:56:09 BoogieIcfgContainer [2018-11-28 17:56:09,359 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:56:09,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:56:09,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:56:09,360 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:56:09,361 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:08" (3/4) ... [2018-11-28 17:56:09,364 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:56:09,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:56:09,365 INFO L168 Benchmark]: Toolchain (without parser) took 2103.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 951.3 MB in the beginning and 1.0 GB in the end (delta: -61.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:09,367 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:09,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 415.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:09,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.54 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:09,369 INFO L168 Benchmark]: Boogie Preprocessor took 185.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:09,370 INFO L168 Benchmark]: RCFGBuilder took 734.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:09,371 INFO L168 Benchmark]: TraceAbstraction took 708.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:09,372 INFO L168 Benchmark]: Witness Printer took 4.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:09,378 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 415.78 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 48.54 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 185.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -140.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 734.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 708.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 107]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 38, overapproximation of bitwiseOr at line 90, overapproximation of someBinaryArithmeticDOUBLEoperation at line 103, overapproximation of bitwiseAnd at line 89. Possible FailurePath: [L14] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418248, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = 1.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418250] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, x=10737418250] [L26] COND TRUE j0 < 20 VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=10737418250] [L27] COND FALSE !(j0 < 0) [L38] i = (0x000fffff) >> j0 VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=10737418250] [L39] COND TRUE ((i0 & i) | i1) == 0 [L40] return x; VAL [\old(x)=10737418250, \result=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=10737418250] [L104] RET, EXPR ceil_double(x) VAL [ceil_double(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418250] [L104] double res = ceil_double(x); [L106] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L82] __int32_t hx, lx; VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418250] [L84] ieee_double_shape_type ew_u; [L85] ew_u.value = (x) [L86] EXPR ew_u.parts.msw [L86] (hx) = ew_u.parts.msw [L87] EXPR ew_u.parts.lsw [L87] (lx) = ew_u.parts.lsw [L89] hx &= 0x7fffffff [L90] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L91] hx = 0x7ff00000 - hx [L92] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418250, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, lx=-2147483648, x=10737418250] [L106] RET, EXPR isinf_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=10737418250, x=10737418250] [L106] COND TRUE !isinf_double(res) [L107] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418250, x=10737418250] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 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=50occurred 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 17:56:11,796 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:56:11,798 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:56:11,810 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:56:11,811 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:56:11,812 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:56:11,813 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:56:11,815 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:56:11,817 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:56:11,818 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:56:11,819 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:56:11,820 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:56:11,821 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:56:11,823 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:56:11,824 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:56:11,826 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:56:11,830 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:56:11,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:56:11,839 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:56:11,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:56:11,844 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:56:11,845 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:56:11,850 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:56:11,850 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:56:11,850 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:56:11,856 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:56:11,858 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:56:11,859 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:56:11,861 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:56:11,863 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:56:11,865 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:56:11,866 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:56:11,866 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:56:11,866 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:56:11,867 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:56:11,867 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:56:11,869 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:56:11,883 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:56:11,884 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:56:11,885 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:56:11,885 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:56:11,885 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:56:11,886 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:56:11,886 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:56:11,886 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:56:11,886 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:56:11,886 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:56:11,886 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:56:11,888 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:56:11,888 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:56:11,888 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:56:11,888 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:56:11,888 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:56:11,888 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:56:11,889 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:56:11,889 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:56:11,889 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:56:11,889 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:56:11,889 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:56:11,889 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:56:11,890 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:56:11,890 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:56:11,890 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:56:11,890 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:56:11,891 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:56:11,891 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:56:11,891 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:56:11,891 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:56:11,891 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:56:11,891 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 -> 7089bbc1d64fdab3968ddd6407c4dd9659b97437 [2018-11-28 17:56:11,930 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:56:11,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:56:11,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:56:11,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:56:11,954 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:56:11,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-11-28 17:56:12,022 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d4221c9/5bb5e07c1ef941dfb8510b08ce70077a/FLAGfebd7dd37 [2018-11-28 17:56:12,512 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:56:12,514 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-11-28 17:56:12,526 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d4221c9/5bb5e07c1ef941dfb8510b08ce70077a/FLAGfebd7dd37 [2018-11-28 17:56:12,832 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8d4221c9/5bb5e07c1ef941dfb8510b08ce70077a [2018-11-28 17:56:12,836 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:56:12,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:56:12,839 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:56:12,839 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:56:12,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:56:12,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:56:12" (1/1) ... [2018-11-28 17:56:12,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f581eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:12, skipping insertion in model container [2018-11-28 17:56:12,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:56:12" (1/1) ... [2018-11-28 17:56:12,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:56:12,879 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:56:13,090 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:56:13,108 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:56:13,175 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:56:13,231 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:56:13,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13 WrapperNode [2018-11-28 17:56:13,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:56:13,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:56:13,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:56:13,233 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:56:13,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:56:13,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:56:13,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:56:13,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:56:13,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... [2018-11-28 17:56:13,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:56:13,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:56:13,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:56:13,347 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:56:13,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:56:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 17:56:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:56:13,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:56:13,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:56:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:56:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:56:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:56:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:56:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-28 17:56:13,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-28 17:56:13,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:56:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:56:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:56:13,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:56:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:56:13,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:56:13,759 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:56:14,227 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:56:15,366 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:56:15,366 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:56:15,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:15 BoogieIcfgContainer [2018-11-28 17:56:15,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:56:15,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:56:15,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:56:15,371 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:56:15,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:56:12" (1/3) ... [2018-11-28 17:56:15,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe75b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:15, skipping insertion in model container [2018-11-28 17:56:15,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:56:13" (2/3) ... [2018-11-28 17:56:15,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe75b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:56:15, skipping insertion in model container [2018-11-28 17:56:15,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:15" (3/3) ... [2018-11-28 17:56:15,375 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c_true-unreach-call.c [2018-11-28 17:56:15,386 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:56:15,395 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:56:15,413 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:56:15,449 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:56:15,450 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:56:15,450 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:56:15,450 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:56:15,451 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:56:15,451 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:56:15,451 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:56:15,451 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:56:15,451 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:56:15,471 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-28 17:56:15,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:56:15,480 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:15,481 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:56:15,483 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:15,492 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:15,492 INFO L82 PathProgramCache]: Analyzing trace with hash -721738728, now seen corresponding path program 1 times [2018-11-28 17:56:15,498 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:15,498 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 17:56:15,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:15,589 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:15,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:15,614 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:15,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:15,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:56:15,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:56:15,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:56:15,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:56:15,653 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-28 17:56:15,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:15,680 INFO L93 Difference]: Finished difference Result 90 states and 133 transitions. [2018-11-28 17:56:15,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:56:15,681 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 17:56:15,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:15,692 INFO L225 Difference]: With dead ends: 90 [2018-11-28 17:56:15,692 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 17:56:15,696 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 17:56:15,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 17:56:15,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 17:56:15,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 17:56:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2018-11-28 17:56:15,747 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 24 [2018-11-28 17:56:15,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:15,748 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2018-11-28 17:56:15,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:56:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2018-11-28 17:56:15,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:56:15,751 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:15,751 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 17:56:15,752 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:15,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:15,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1549059375, now seen corresponding path program 1 times [2018-11-28 17:56:15,754 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:15,755 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 17:56:15,762 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 17:56:15,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:15,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:16,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:16,329 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:16,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:16,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:56:16,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:56:16,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:56:16,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:56:16,349 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 7 states. [2018-11-28 17:56:17,077 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-11-28 17:56:20,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:20,277 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2018-11-28 17:56:20,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 17:56:20,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:56:20,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:20,282 INFO L225 Difference]: With dead ends: 78 [2018-11-28 17:56:20,283 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 17:56:20,284 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-11-28 17:56:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 17:56:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2018-11-28 17:56:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-28 17:56:20,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-28 17:56:20,293 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 26 [2018-11-28 17:56:20,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:20,293 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-28 17:56:20,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:56:20,294 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-28 17:56:20,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:56:20,295 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:20,295 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 17:56:20,295 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:20,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:20,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1162953480, now seen corresponding path program 1 times [2018-11-28 17:56:20,296 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:20,297 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 17:56:20,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:20,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:20,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:20,817 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:20,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:20,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:56:20,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:56:20,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:56:20,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:56:20,833 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 7 states. [2018-11-28 17:56:22,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:22,344 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-11-28 17:56:22,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 17:56:22,345 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:56:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:22,346 INFO L225 Difference]: With dead ends: 59 [2018-11-28 17:56:22,346 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 17:56:22,347 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:56:22,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 17:56:22,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 17:56:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 17:56:22,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-28 17:56:22,353 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26 [2018-11-28 17:56:22,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:22,354 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-28 17:56:22,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:56:22,354 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-28 17:56:22,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:56:22,355 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:22,355 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 17:56:22,355 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:22,356 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:22,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1463112616, now seen corresponding path program 1 times [2018-11-28 17:56:22,356 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:22,357 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) [2018-11-28 17:56:22,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 17:56:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:22,541 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:23,375 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-28 17:56:24,420 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:24,421 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:24,427 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 17:56:24,502 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:56:24,515 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-11-28 17:56:24,516 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 17:56:24,554 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 17:56:24,582 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 17:56:24,583 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 17:56:24,602 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:56:24,613 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 17:56:24,626 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 17:56:24,627 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:57, output treesize:18 [2018-11-28 17:56:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:25,547 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:25,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:25,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 17:56:25,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 17:56:25,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 17:56:25,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 17:56:25,568 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 11 states. [2018-11-28 17:56:28,049 WARN L180 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 17:56:31,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:31,782 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-11-28 17:56:31,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 17:56:31,783 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-28 17:56:31,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:31,785 INFO L225 Difference]: With dead ends: 34 [2018-11-28 17:56:31,785 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 17:56:31,786 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-28 17:56:31,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 17:56:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 17:56:31,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 17:56:31,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-28 17:56:31,796 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2018-11-28 17:56:31,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:31,796 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-28 17:56:31,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 17:56:31,798 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-28 17:56:31,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:56:31,799 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:56:31,799 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 17:56:31,799 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:56:31,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:56:31,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1756515623, now seen corresponding path program 1 times [2018-11-28 17:56:31,800 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:56:31,800 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 17:56:31,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:56:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:56:31,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:56:32,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:56:32,100 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:56:32,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:56:32,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:56:32,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:56:32,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:56:32,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:56:32,113 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 7 states. [2018-11-28 17:56:32,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:56:32,764 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-28 17:56:32,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:56:32,765 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:56:32,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:56:32,765 INFO L225 Difference]: With dead ends: 27 [2018-11-28 17:56:32,766 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:56:32,766 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 17:56:32,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:56:32,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:56:32,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:56:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:56:32,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-28 17:56:32,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:56:32,768 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:56:32,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:56:32,768 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:56:32,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:56:32,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:56:32,964 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:56:32,965 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:56:32,965 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:56:32,965 INFO L448 ceAbstractionStarter]: For program point L83-1(lines 83 88) no Hoare annotation was computed. [2018-11-28 17:56:32,965 INFO L444 ceAbstractionStarter]: At program point L83-2(lines 83 88) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-28 17:56:32,965 INFO L448 ceAbstractionStarter]: For program point L83-3(lines 83 88) no Hoare annotation was computed. [2018-11-28 17:56:32,965 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 81 93) no Hoare annotation was computed. [2018-11-28 17:56:32,966 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 81 93) no Hoare annotation was computed. [2018-11-28 17:56:32,966 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 81 93) the Hoare annotation is: true [2018-11-28 17:56:32,966 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 47) no Hoare annotation was computed. [2018-11-28 17:56:32,966 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-11-28 17:56:32,966 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-11-28 17:56:32,966 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-11-28 17:56:32,966 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 70) no Hoare annotation was computed. [2018-11-28 17:56:32,966 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 35) no Hoare annotation was computed. [2018-11-28 17:56:32,966 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 36) no Hoare annotation was computed. [2018-11-28 17:56:32,968 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 69) no Hoare annotation was computed. [2018-11-28 17:56:32,968 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 52) no Hoare annotation was computed. [2018-11-28 17:56:32,968 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 46) no Hoare annotation was computed. [2018-11-28 17:56:32,968 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 35) no Hoare annotation was computed. [2018-11-28 17:56:32,968 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 67) no Hoare annotation was computed. [2018-11-28 17:56:32,968 INFO L448 ceAbstractionStarter]: For program point L58-1(lines 58 67) no Hoare annotation was computed. [2018-11-28 17:56:32,968 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 16 78) the Hoare annotation is: true [2018-11-28 17:56:32,968 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 76) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point L71-1(lines 16 78) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point L71-2(lines 71 76) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 16 78) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 16 78) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point L63(lines 63 64) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point L63-2(lines 63 64) no Hoare annotation was computed. [2018-11-28 17:56:32,969 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 66) no Hoare annotation was computed. [2018-11-28 17:56:32,970 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 70) no Hoare annotation was computed. [2018-11-28 17:56:32,970 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-11-28 17:56:32,970 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 40) no Hoare annotation was computed. [2018-11-28 17:56:32,970 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:56:32,970 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:56:32,970 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:56:32,970 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:56:32,970 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 107) no Hoare annotation was computed. [2018-11-28 17:56:32,971 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 95 111) the Hoare annotation is: true [2018-11-28 17:56:32,975 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 95 111) no Hoare annotation was computed. [2018-11-28 17:56:32,975 INFO L448 ceAbstractionStarter]: For program point L107(line 107) no Hoare annotation was computed. [2018-11-28 17:56:32,975 INFO L444 ceAbstractionStarter]: At program point L106(line 106) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2018-11-28 17:56:32,975 INFO L448 ceAbstractionStarter]: For program point L106-1(lines 106 109) no Hoare annotation was computed. [2018-11-28 17:56:32,975 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 95 111) no Hoare annotation was computed. [2018-11-28 17:56:32,976 INFO L444 ceAbstractionStarter]: At program point L104(line 104) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) [2018-11-28 17:56:32,977 INFO L448 ceAbstractionStarter]: For program point L104-1(line 104) no Hoare annotation was computed. [2018-11-28 17:56:32,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:56:32 BoogieIcfgContainer [2018-11-28 17:56:32,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:56:32,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:56:32,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:56:32,991 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:56:32,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:56:15" (3/4) ... [2018-11-28 17:56:32,997 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:56:33,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:56:33,006 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-28 17:56:33,007 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-11-28 17:56:33,008 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:56:33,014 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-11-28 17:56:33,015 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 17:56:33,015 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:56:33,041 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:56:33,041 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 17:56:33,090 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:56:33,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:56:33,095 INFO L168 Benchmark]: Toolchain (without parser) took 20257.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.4 MB in the beginning and 858.9 MB in the end (delta: 92.5 MB). Peak memory consumption was 228.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:33,103 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:33,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 393.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:33,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.99 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:33,104 INFO L168 Benchmark]: Boogie Preprocessor took 68.82 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:56:33,104 INFO L168 Benchmark]: RCFGBuilder took 2020.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:33,105 INFO L168 Benchmark]: TraceAbstraction took 17622.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 865.7 MB in the end (delta: 230.6 MB). Peak memory consumption was 230.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:33,105 INFO L168 Benchmark]: Witness Printer took 102.85 ms. Allocated memory is still 1.2 GB. Free memory was 865.7 MB in the beginning and 858.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:56:33,111 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 393.57 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.99 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.82 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2020.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17622.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 865.7 MB in the end (delta: 230.6 MB). Peak memory consumption was 230.6 MB. Max. memory is 11.5 GB. * Witness Printer took 102.85 ms. Allocated memory is still 1.2 GB. Free memory was 865.7 MB in the beginning and 858.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 107]: 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: 83]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. SAFE Result, 17.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 12.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 147 SDtfs, 241 SDslu, 383 SDs, 0 SdLazy, 266 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 45 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 123 ConstructedInterpolants, 26 QuantifiedInterpolants, 19904 SizeOfPredicates, 18 NumberOfNonLiveVariables, 408 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...