./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_1032d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55e25fd47a6133e138b684ec17fad2c015ceccf7 ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_1032d_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55e25fd47a6133e138b684ec17fad2c015ceccf7 ............................................................................................................................................................................................................................................................................................................................................................................................... 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 18:03:33,298 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:33,300 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:33,318 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:33,319 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:33,321 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:33,323 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:33,326 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:33,329 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:33,329 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:33,330 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:33,333 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:33,334 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:33,337 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:33,344 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:33,346 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:33,349 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:33,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:33,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:33,358 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:33,359 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:33,363 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:33,366 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:33,369 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:33,370 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:33,370 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:33,371 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:33,372 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:33,375 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:33,376 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:33,378 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:33,379 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:33,380 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:33,381 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:33,381 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:33,382 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:33,382 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:03:33,409 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:33,410 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:33,411 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:33,411 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:33,411 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:33,412 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:33,412 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:33,412 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:33,412 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:33,412 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:03:33,412 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:33,414 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:33,414 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:33,414 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:33,415 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:33,415 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:33,415 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:33,415 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:33,416 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:33,416 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:33,416 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:33,416 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:33,416 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:33,416 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:33,417 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:33,417 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:33,417 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:33,417 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:03:33,417 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:33,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:03:33,420 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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-11-28 18:03:33,464 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:33,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:33,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:33,486 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:33,486 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:33,487 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-28 18:03:33,542 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/081833da2/888a5363a7a84ba1a328b643d5c7cade/FLAG30b49b0f3 [2018-11-28 18:03:34,049 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:34,050 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-28 18:03:34,058 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/081833da2/888a5363a7a84ba1a328b643d5c7cade/FLAG30b49b0f3 [2018-11-28 18:03:34,385 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/081833da2/888a5363a7a84ba1a328b643d5c7cade [2018-11-28 18:03:34,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:34,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:34,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:34,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:34,395 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:34,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4557bdd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34, skipping insertion in model container [2018-11-28 18:03:34,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:34,432 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:34,649 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:34,654 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:34,685 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:34,715 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:34,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34 WrapperNode [2018-11-28 18:03:34,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:34,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:34,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:34,717 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:34,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:34,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:34,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:34,745 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:34,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (1/1) ... [2018-11-28 18:03:34,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:34,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:34,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:34,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:34,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (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 18:03:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:03:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:03:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:34,914 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:34,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:03:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-28 18:03:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-28 18:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:03:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:34,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:35,428 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:35,429 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:03:35,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:35 BoogieIcfgContainer [2018-11-28 18:03:35,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:35,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:35,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:35,435 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:35,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:34" (1/3) ... [2018-11-28 18:03:35,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f304bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:35, skipping insertion in model container [2018-11-28 18:03:35,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:34" (2/3) ... [2018-11-28 18:03:35,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f304bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:35, skipping insertion in model container [2018-11-28 18:03:35,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:35" (3/3) ... [2018-11-28 18:03:35,440 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-11-28 18:03:35,450 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:35,460 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:35,477 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:35,510 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:35,511 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:35,511 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:35,511 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:35,512 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:35,512 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:35,512 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:35,512 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:35,513 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:35,533 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-28 18:03:35,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 18:03:35,540 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:35,541 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 18:03:35,544 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:35,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:35,550 INFO L82 PathProgramCache]: Analyzing trace with hash 636729620, now seen corresponding path program 1 times [2018-11-28 18:03:35,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:35,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:35,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:35,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:35,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:35,699 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 18:03:35,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:35,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:35,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:35,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:35,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:35,726 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-28 18:03:35,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:35,754 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-11-28 18:03:35,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:35,755 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 18:03:35,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:35,764 INFO L225 Difference]: With dead ends: 66 [2018-11-28 18:03:35,764 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 18:03:35,768 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 18:03:35,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 18:03:35,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 18:03:35,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 18:03:35,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-28 18:03:35,812 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 24 [2018-11-28 18:03:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:35,812 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-28 18:03:35,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-28 18:03:35,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:35,814 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:35,814 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 18:03:35,814 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:35,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:35,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1180797057, now seen corresponding path program 1 times [2018-11-28 18:03:35,815 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:35,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:35,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:35,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:35,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:35,969 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:03:36,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:36 BoogieIcfgContainer [2018-11-28 18:03:36,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:36,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:36,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:36,004 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:36,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:35" (3/4) ... [2018-11-28 18:03:36,008 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:03:36,008 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:36,009 INFO L168 Benchmark]: Toolchain (without parser) took 1620.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -120.1 MB). Peak memory consumption was 5.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:36,012 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:36,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.97 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:36,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.68 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:36,014 INFO L168 Benchmark]: Boogie Preprocessor took 46.04 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:36,015 INFO L168 Benchmark]: RCFGBuilder took 638.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:36,016 INFO L168 Benchmark]: TraceAbstraction took 572.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:36,017 INFO L168 Benchmark]: Witness Printer took 4.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:36,023 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.97 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.68 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.04 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 638.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 572.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 78]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 62. Possible FailurePath: [L73] float x = -1.0f / 0.0f; [L74] CALL, EXPR round_float(x) VAL [\old(x)=6442450951] [L12] __uint32_t w; [L14] int exponent_less_127; VAL [\old(x)=6442450951, x=6442450951] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450951, exponent_less_127=128, w=2147483652, x=6442450951] [L24] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450951, exponent_less_127=128, w=2147483652, x=6442450951] [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; VAL [\old(x)=6442450951, exponent_less_127=128, w=2147483652, x=6442450951] [L74] RET, EXPR round_float(x) VAL [round_float(x)=6442450946, x=6442450951] [L74] float res = round_float(x); [L77] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450946] [L56] __int32_t ix; VAL [\old(x)=6442450946, x=6442450946] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (ix) = gf_u.word [L62] ix &= 0x7fffffff [L63] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450946, \result=0, ix=0, x=6442450946] [L77] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450946, x=6442450951] [L77] COND TRUE !isinf_float(res) [L78] __VERIFIER_error() VAL [res=6442450946, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 18:03:38,490 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:38,492 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:38,508 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:38,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:38,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:38,510 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:38,512 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:38,514 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:38,515 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:38,515 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:38,516 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:38,517 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:38,517 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:38,519 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:38,519 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:38,520 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:38,522 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:38,524 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:38,526 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:38,527 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:38,528 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:38,530 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:38,531 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:38,531 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:38,532 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:38,533 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:38,534 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:38,534 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:38,536 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:38,536 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:38,537 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:38,537 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:38,537 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:38,538 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:38,539 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:38,539 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:03:38,557 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:38,558 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:38,558 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:38,559 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:38,559 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:38,559 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:38,559 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:38,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:38,561 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:38,561 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:38,561 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:38,561 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:38,562 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:38,562 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:38,562 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:03:38,562 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:03:38,562 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:38,563 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:38,565 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:38,565 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:38,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:38,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:38,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:38,566 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:38,566 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:38,566 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:38,566 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:38,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:38,567 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:03:38,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:38,567 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:03:38,567 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:03:38,567 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 -> 55e25fd47a6133e138b684ec17fad2c015ceccf7 [2018-11-28 18:03:38,613 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:38,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:38,638 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:38,640 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:38,641 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:38,641 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-28 18:03:38,701 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2195a89e7/14e362e8ccc04c32abb655486422dd03/FLAG51aa87992 [2018-11-28 18:03:39,266 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:39,267 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1032d_true-unreach-call.c [2018-11-28 18:03:39,278 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2195a89e7/14e362e8ccc04c32abb655486422dd03/FLAG51aa87992 [2018-11-28 18:03:39,725 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2195a89e7/14e362e8ccc04c32abb655486422dd03 [2018-11-28 18:03:39,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:39,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:39,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:39,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:39,744 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:39,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:39" (1/1) ... [2018-11-28 18:03:39,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3041e472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:39, skipping insertion in model container [2018-11-28 18:03:39,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:39" (1/1) ... [2018-11-28 18:03:39,759 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:39,784 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:39,985 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:39,991 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:40,033 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:40,078 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:40,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40 WrapperNode [2018-11-28 18:03:40,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:40,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:40,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:40,080 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:40,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,102 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:40,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:40,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:40,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:40,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (1/1) ... [2018-11-28 18:03:40,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:40,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:40,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:40,243 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:40,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (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 18:03:40,316 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:40,316 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:03:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure round_float [2018-11-28 18:03:40,317 INFO L138 BoogieDeclarations]: Found implementation of procedure round_float [2018-11-28 18:03:40,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:40,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:40,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:03:40,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:03:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:03:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:40,602 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:40,827 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:40,931 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:40,931 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 18:03:40,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:40 BoogieIcfgContainer [2018-11-28 18:03:40,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:40,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:40,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:40,937 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:40,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:39" (1/3) ... [2018-11-28 18:03:40,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f7c114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:40, skipping insertion in model container [2018-11-28 18:03:40,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:40" (2/3) ... [2018-11-28 18:03:40,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f7c114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:40, skipping insertion in model container [2018-11-28 18:03:40,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:40" (3/3) ... [2018-11-28 18:03:40,942 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032d_true-unreach-call.c [2018-11-28 18:03:40,954 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:40,963 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:40,982 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:41,017 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:41,019 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:41,019 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:41,019 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:41,020 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:41,020 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:41,020 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:41,020 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:41,020 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:41,041 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-28 18:03:41,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:03:41,047 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:41,048 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:41,051 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:41,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:41,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1346515495, now seen corresponding path program 1 times [2018-11-28 18:03:41,064 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:41,065 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 18:03:41,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:41,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:41,177 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 18:03:41,180 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:41,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:41,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:41,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:41,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:41,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:41,212 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-28 18:03:41,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:41,236 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-11-28 18:03:41,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:41,237 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 18:03:41,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:41,247 INFO L225 Difference]: With dead ends: 64 [2018-11-28 18:03:41,247 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 18:03:41,251 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 18:03:41,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 18:03:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 18:03:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 18:03:41,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-11-28 18:03:41,295 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 23 [2018-11-28 18:03:41,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:41,296 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-11-28 18:03:41,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:41,296 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-11-28 18:03:41,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:03:41,297 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:41,298 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 18:03:41,299 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:41,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:41,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1879157128, now seen corresponding path program 1 times [2018-11-28 18:03:41,300 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:41,300 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 18:03:41,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:41,409 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:42,933 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 18:03:42,933 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:42,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:42,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 18:03:42,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 18:03:42,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 18:03:42,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:03:42,952 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 11 states. [2018-11-28 18:03:43,621 WARN L180 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 18:03:44,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:44,922 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-11-28 18:03:44,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 18:03:44,923 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-28 18:03:44,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:44,926 INFO L225 Difference]: With dead ends: 41 [2018-11-28 18:03:44,927 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 18:03:44,928 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-28 18:03:44,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 18:03:44,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-11-28 18:03:44,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 18:03:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2018-11-28 18:03:44,940 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 25 [2018-11-28 18:03:44,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:44,940 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2018-11-28 18:03:44,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 18:03:44,941 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2018-11-28 18:03:44,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:03:44,942 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:44,943 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 18:03:44,943 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:44,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:44,944 INFO L82 PathProgramCache]: Analyzing trace with hash 1585754121, now seen corresponding path program 1 times [2018-11-28 18:03:44,944 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:44,945 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 18:03:44,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:45,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:45,018 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:45,371 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 18:03:45,371 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:45,386 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:45,386 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:03:45,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:03:45,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:03:45,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:03:45,388 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 7 states. [2018-11-28 18:03:46,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:46,122 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-11-28 18:03:46,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:03:46,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-28 18:03:46,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:46,124 INFO L225 Difference]: With dead ends: 34 [2018-11-28 18:03:46,124 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:46,125 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:03:46,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:46,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:46,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:46,127 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-28 18:03:46,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:46,127 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:46,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:03:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:46,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:46,134 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:46,341 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-11-28 18:03:46,341 INFO L444 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-28 18:03:46,341 INFO L448 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2018-11-28 18:03:46,341 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 55 64) the Hoare annotation is: true [2018-11-28 18:03:46,342 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 55 64) no Hoare annotation was computed. [2018-11-28 18:03:46,343 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 55 64) no Hoare annotation was computed. [2018-11-28 18:03:46,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:46,343 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:46,343 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:46,343 INFO L451 ceAbstractionStarter]: At program point round_floatENTRY(lines 11 52) the Hoare annotation is: true [2018-11-28 18:03:46,345 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 29) no Hoare annotation was computed. [2018-11-28 18:03:46,345 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 38) no Hoare annotation was computed. [2018-11-28 18:03:46,345 INFO L448 ceAbstractionStarter]: For program point L46(lines 46 50) no Hoare annotation was computed. [2018-11-28 18:03:46,345 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 11 52) no Hoare annotation was computed. [2018-11-28 18:03:46,345 INFO L448 ceAbstractionStarter]: For program point L46-2(lines 46 50) no Hoare annotation was computed. [2018-11-28 18:03:46,346 INFO L448 ceAbstractionStarter]: For program point round_floatFINAL(lines 11 52) no Hoare annotation was computed. [2018-11-28 18:03:46,346 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-11-28 18:03:46,346 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 34) no Hoare annotation was computed. [2018-11-28 18:03:46,346 INFO L448 ceAbstractionStarter]: For program point round_floatEXIT(lines 11 52) no Hoare annotation was computed. [2018-11-28 18:03:46,346 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 45) no Hoare annotation was computed. [2018-11-28 18:03:46,346 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-28 18:03:46,346 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= round_float_~x |round_float_#in~x|) [2018-11-28 18:03:46,347 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-11-28 18:03:46,347 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:46,347 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:03:46,347 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:46,348 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:46,348 INFO L448 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-11-28 18:03:46,348 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 65 83) the Hoare annotation is: true [2018-11-28 18:03:46,348 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= main_~x~0 .cse0))) [2018-11-28 18:03:46,348 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 65 83) no Hoare annotation was computed. [2018-11-28 18:03:46,349 INFO L448 ceAbstractionStarter]: For program point L77-1(lines 77 80) no Hoare annotation was computed. [2018-11-28 18:03:46,349 INFO L444 ceAbstractionStarter]: At program point L74(line 74) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-28 18:03:46,349 INFO L448 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-11-28 18:03:46,349 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 65 83) no Hoare annotation was computed. [2018-11-28 18:03:46,349 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 78) no Hoare annotation was computed. [2018-11-28 18:03:46,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:46 BoogieIcfgContainer [2018-11-28 18:03:46,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:46,364 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:46,364 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:46,364 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:46,365 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:40" (3/4) ... [2018-11-28 18:03:46,368 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:46,375 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-28 18:03:46,375 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:46,376 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_float [2018-11-28 18:03:46,376 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:46,382 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-28 18:03:46,382 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 18:03:46,383 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:03:46,412 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 18:03:46,412 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:03:46,454 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:46,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:46,456 INFO L168 Benchmark]: Toolchain (without parser) took 6722.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 951.4 MB in the beginning and 964.8 MB in the end (delta: -13.4 MB). Peak memory consumption was 110.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,458 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 18:03:46,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.83 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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 18:03:46,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.15 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 18:03:46,460 INFO L168 Benchmark]: Boogie Preprocessor took 131.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,461 INFO L168 Benchmark]: RCFGBuilder took 689.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,461 INFO L168 Benchmark]: TraceAbstraction took 5430.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.4 MB in the end (delta: 123.1 MB). Peak memory consumption was 123.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,462 INFO L168 Benchmark]: Witness Printer took 91.16 ms. Allocated memory is still 1.2 GB. Free memory was 971.4 MB in the beginning and 964.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,466 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 339.83 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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 31.15 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 131.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 689.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5430.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.4 MB in the end (delta: 123.1 MB). Peak memory consumption was 123.1 MB. Max. memory is 11.5 GB. * Witness Printer took 91.16 ms. Allocated memory is still 1.2 GB. Free memory was 971.4 MB in the beginning and 964.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 78]: 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: 16]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 5.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 80 SDtfs, 53 SDslu, 256 SDs, 0 SdLazy, 137 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 49 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 73 NumberOfCodeBlocks, 73 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 70 ConstructedInterpolants, 6 QuantifiedInterpolants, 8260 SizeOfPredicates, 9 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...