./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 .................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:51:52,426 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:51:52,427 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:51:52,436 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:51:52,437 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:51:52,437 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:51:52,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:51:52,440 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:51:52,441 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:51:52,442 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:51:52,443 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:51:52,443 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:51:52,444 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:51:52,445 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:51:52,445 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:51:52,446 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:51:52,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:51:52,448 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:51:52,450 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:51:52,451 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:51:52,452 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:51:52,453 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:51:52,455 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:51:52,455 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:51:52,455 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:51:52,456 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:51:52,457 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:51:52,458 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:51:52,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:51:52,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:51:52,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:51:52,460 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:51:52,460 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:51:52,460 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:51:52,461 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:51:52,462 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:51:52,462 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:51:52,474 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:51:52,474 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:51:52,474 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:51:52,475 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:51:52,475 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:51:52,475 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:51:52,475 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:51:52,475 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:51:52,476 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:51:52,476 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:51:52,476 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:51:52,476 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:51:52,476 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:51:52,477 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:51:52,477 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:51:52,477 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:51:52,477 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:51:52,478 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:51:52,478 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:51:52,478 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:51:52,478 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:51:52,478 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:51:52,478 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:51:52,479 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:51:52,479 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:51:52,479 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:51:52,479 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:51:52,479 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:51:52,479 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:51:52,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:51:52,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:51:52,480 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:51:52,480 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:51:52,480 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:51:52,480 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:51:52,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:51:52,481 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:51:52,481 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan 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 -> Taipan 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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-11-18 13:51:52,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:51:52,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:51:52,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:51:52,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:51:52,523 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:51:52,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:51:52,572 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data/35666c049/731a8f1fd4ac476db8122a3c28cb4b40/FLAG857716995 [2018-11-18 13:51:52,908 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:51:52,908 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:51:52,913 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data/35666c049/731a8f1fd4ac476db8122a3c28cb4b40/FLAG857716995 [2018-11-18 13:51:53,334 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data/35666c049/731a8f1fd4ac476db8122a3c28cb4b40 [2018-11-18 13:51:53,336 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:51:53,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:51:53,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:51:53,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:51:53,340 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:51:53,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,343 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb347f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53, skipping insertion in model container [2018-11-18 13:51:53,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:51:53,365 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:51:53,478 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:51:53,481 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:51:53,491 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:51:53,500 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:51:53,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53 WrapperNode [2018-11-18 13:51:53,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:51:53,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:51:53,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:51:53,501 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:51:53,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:51:53,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:51:53,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:51:53,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:51:53,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... [2018-11-18 13:51:53,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:51:53,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:51:53,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:51:53,536 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:51:53,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/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 [2018-11-18 13:51:53,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:51:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:51:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:51:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:51:53,619 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:51:53,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:51:53,704 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:51:53,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:51:53 BoogieIcfgContainer [2018-11-18 13:51:53,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:51:53,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:51:53,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:51:53,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:51:53,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:51:53" (1/3) ... [2018-11-18 13:51:53,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fbaf7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:51:53, skipping insertion in model container [2018-11-18 13:51:53,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:53" (2/3) ... [2018-11-18 13:51:53,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fbaf7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:51:53, skipping insertion in model container [2018-11-18 13:51:53,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:51:53" (3/3) ... [2018-11-18 13:51:53,711 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:51:53,721 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:51:53,729 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:51:53,743 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:51:53,765 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:51:53,765 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:51:53,765 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:51:53,765 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:51:53,765 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:51:53,766 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:51:53,766 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:51:53,766 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:51:53,777 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-18 13:51:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 13:51:53,782 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:51:53,783 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:51:53,784 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:51:53,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:51:53,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-18 13:51:53,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:51:53,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:51:53,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:51:53,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:51:53,819 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:51:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:51:53,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:51:53,859 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:51:53,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:51:53 BoogieIcfgContainer [2018-11-18 13:51:53,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:51:53,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:51:53,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:51:53,877 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:51:53,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:51:53" (3/4) ... [2018-11-18 13:51:53,881 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:51:53,881 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:51:53,881 INFO L168 Benchmark]: Toolchain (without parser) took 544.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:51:53,883 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:51:53,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.72 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:53,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.32 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:51:53,884 INFO L168 Benchmark]: Boogie Preprocessor took 15.05 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:53,885 INFO L168 Benchmark]: RCFGBuilder took 168.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:53,886 INFO L168 Benchmark]: TraceAbstraction took 171.72 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: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:53,886 INFO L168 Benchmark]: Witness Printer took 3.93 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. [2018-11-18 13:51:53,889 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.72 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.32 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.05 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 168.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 171.72 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: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.93 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) VAL [j=0] [L10] __VERIFIER_error() VAL [j=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 0.1.23-5842f4b [2018-11-18 13:51:55,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:51:55,532 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:51:55,542 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:51:55,542 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:51:55,543 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:51:55,544 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:51:55,546 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:51:55,547 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:51:55,548 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:51:55,548 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:51:55,549 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:51:55,549 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:51:55,550 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:51:55,551 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:51:55,552 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:51:55,552 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:51:55,554 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:51:55,555 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:51:55,556 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:51:55,557 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:51:55,558 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:51:55,560 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:51:55,560 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:51:55,561 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:51:55,561 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:51:55,562 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:51:55,563 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:51:55,564 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:51:55,564 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:51:55,565 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:51:55,565 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:51:55,565 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:51:55,566 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:51:55,566 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:51:55,567 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:51:55,567 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 13:51:55,579 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:51:55,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:51:55,580 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:51:55,581 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:51:55,581 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:51:55,581 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:51:55,581 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:51:55,581 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:51:55,581 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:51:55,582 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:51:55,582 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:51:55,582 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:51:55,583 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:51:55,583 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:51:55,583 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:51:55,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:51:55,583 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:51:55,583 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:51:55,583 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:51:55,584 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:51:55,584 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:51:55,584 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:51:55,584 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:51:55,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:51:55,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:51:55,585 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:51:55,585 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:51:55,585 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:51:55,585 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:51:55,585 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:51:55,585 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:51:55,586 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 13:51:55,586 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:51:55,586 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:51:55,586 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:51:55,586 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan 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 -> Taipan 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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-11-18 13:51:55,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:51:55,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:51:55,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:51:55,634 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:51:55,634 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:51:55,635 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:51:55,677 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data/21b5f7da1/312365054b0641658172f928f239510c/FLAGdcfbca8c1 [2018-11-18 13:51:56,026 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:51:56,027 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:51:56,031 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data/21b5f7da1/312365054b0641658172f928f239510c/FLAGdcfbca8c1 [2018-11-18 13:51:56,042 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/data/21b5f7da1/312365054b0641658172f928f239510c [2018-11-18 13:51:56,044 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:51:56,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:51:56,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:51:56,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:51:56,050 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:51:56,051 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,053 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@433c6bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56, skipping insertion in model container [2018-11-18 13:51:56,053 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:51:56,074 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:51:56,203 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:51:56,209 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:51:56,219 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:51:56,230 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:51:56,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56 WrapperNode [2018-11-18 13:51:56,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:51:56,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:51:56,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:51:56,231 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:51:56,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:51:56,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:51:56,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:51:56,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:51:56,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... [2018-11-18 13:51:56,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:51:56,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:51:56,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:51:56,266 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:51:56,266 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/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 [2018-11-18 13:51:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:51:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:51:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:51:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:51:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:51:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:51:56,455 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:51:56,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:51:56 BoogieIcfgContainer [2018-11-18 13:51:56,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:51:56,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:51:56,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:51:56,459 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:51:56,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:51:56" (1/3) ... [2018-11-18 13:51:56,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af2e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:51:56, skipping insertion in model container [2018-11-18 13:51:56,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:51:56" (2/3) ... [2018-11-18 13:51:56,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2af2e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:51:56, skipping insertion in model container [2018-11-18 13:51:56,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:51:56" (3/3) ... [2018-11-18 13:51:56,462 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-11-18 13:51:56,469 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:51:56,474 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:51:56,485 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:51:56,507 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:51:56,507 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:51:56,508 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:51:56,508 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:51:56,508 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:51:56,508 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:51:56,508 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:51:56,508 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:51:56,508 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:51:56,522 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-18 13:51:56,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 13:51:56,527 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:51:56,528 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:51:56,530 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:51:56,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:51:56,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-18 13:51:56,537 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:51:56,537 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/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 [2018-11-18 13:51:56,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:51:56,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:51:56,585 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:51:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:51:56,629 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:51:56,640 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:51:56,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 13:51:56,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 13:51:56,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:51:56,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:51:56,658 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-18 13:51:56,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:51:56,673 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-18 13:51:56,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:51:56,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 13:51:56,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:51:56,680 INFO L225 Difference]: With dead ends: 16 [2018-11-18 13:51:56,680 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:51:56,682 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:51:56,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:51:56,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:51:56,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:51:56,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:51:56,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-18 13:51:56,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:51:56,707 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:51:56,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 13:51:56,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:51:56,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:51:56,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:51:56,746 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 13:51:56,746 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:51:56,746 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:51:56,746 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 13:51:56,746 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:51:56,747 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:51:56,747 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-18 13:51:56,747 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 2 11) the Hoare annotation is: true [2018-11-18 13:51:56,747 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-18 13:51:56,747 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-18 13:51:56,747 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 2 11) no Hoare annotation was computed. [2018-11-18 13:51:56,747 INFO L425 ceAbstractionStarter]: For program point L10-3(lines 2 11) no Hoare annotation was computed. [2018-11-18 13:51:56,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:51:56 BoogieIcfgContainer [2018-11-18 13:51:56,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:51:56,750 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:51:56,750 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:51:56,750 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:51:56,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:51:56" (3/4) ... [2018-11-18 13:51:56,753 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:51:56,759 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:51:56,759 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:51:56,762 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 13:51:56,762 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:51:56,763 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 13:51:56,791 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_889b7c83-f806-4c12-a17a-6177787a99c0/bin-2019/utaipan/witness.graphml [2018-11-18 13:51:56,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:51:56,792 INFO L168 Benchmark]: Toolchain (without parser) took 747.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -145.5 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:56,793 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:51:56,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.61 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:56,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.73 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:51:56,794 INFO L168 Benchmark]: Boogie Preprocessor took 17.06 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:56,795 INFO L168 Benchmark]: RCFGBuilder took 190.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:56,796 INFO L168 Benchmark]: TraceAbstraction took 292.94 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: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:56,796 INFO L168 Benchmark]: Witness Printer took 41.25 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:51:56,800 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.61 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.73 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.06 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 190.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -200.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 292.94 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: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Witness Printer took 41.25 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 3 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...