./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_8_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_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer --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 847ec304644081d839ca7e80209d45b391ec9937 ...................................................................................................................................................................................................................................... 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_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer --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 847ec304644081d839ca7e80209d45b391ec9937 .................................................................................................................................................................................................................................................................. 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 17:26:35,417 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:26:35,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:26:35,425 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:26:35,425 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:26:35,426 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:26:35,426 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:26:35,427 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:26:35,429 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:26:35,429 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:26:35,430 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:26:35,430 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:26:35,431 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:26:35,431 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:26:35,432 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:26:35,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:26:35,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:26:35,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:26:35,435 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:26:35,436 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:26:35,436 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:26:35,437 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:26:35,438 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:26:35,438 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:26:35,438 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:26:35,439 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:26:35,439 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:26:35,440 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:26:35,441 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:26:35,441 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:26:35,442 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:26:35,442 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:26:35,442 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:26:35,442 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:26:35,443 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:26:35,443 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:26:35,444 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 17:26:35,451 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:26:35,451 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:26:35,451 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:26:35,451 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 17:26:35,452 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:26:35,452 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:26:35,452 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:26:35,453 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:26:35,453 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:26:35,453 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:26:35,454 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_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer 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 -> 847ec304644081d839ca7e80209d45b391ec9937 [2018-11-18 17:26:35,476 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:26:35,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:26:35,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:26:35,489 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:26:35,489 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:26:35,489 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-11-18 17:26:35,525 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data/2b25dea8e/5a4d444a492542b09c60a9d2872f8918/FLAGab3bc19f3 [2018-11-18 17:26:35,912 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:26:35,912 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/sv-benchmarks/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-11-18 17:26:35,915 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data/2b25dea8e/5a4d444a492542b09c60a9d2872f8918/FLAGab3bc19f3 [2018-11-18 17:26:35,927 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data/2b25dea8e/5a4d444a492542b09c60a9d2872f8918 [2018-11-18 17:26:35,929 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:26:35,930 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 17:26:35,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:35,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:26:35,934 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:26:35,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:26:35" (1/1) ... [2018-11-18 17:26:35,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fbb635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:35, skipping insertion in model container [2018-11-18 17:26:35,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:26:35" (1/1) ... [2018-11-18 17:26:35,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:26:35,954 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:26:36,056 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:26:36,058 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:26:36,067 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:26:36,075 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:26:36,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36 WrapperNode [2018-11-18 17:26:36,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:36,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:26:36,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:26:36,076 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:26:36,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (1/1) ... [2018-11-18 17:26:36,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (1/1) ... [2018-11-18 17:26:36,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (1/1) ... [2018-11-18 17:26:36,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (1/1) ... [2018-11-18 17:26:36,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (1/1) ... [2018-11-18 17:26:36,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (1/1) ... [2018-11-18 17:26:36,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (1/1) ... [2018-11-18 17:26:36,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:26:36,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:26:36,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:26:36,093 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:26:36,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/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 17:26:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:26:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:26:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:26:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 17:26:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 17:26:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 17:26:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:26:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:26:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:26:36,257 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:26:36,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:36 BoogieIcfgContainer [2018-11-18 17:26:36,258 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:26:36,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:26:36,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:26:36,260 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:26:36,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:26:35" (1/3) ... [2018-11-18 17:26:36,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e68e95f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:26:36, skipping insertion in model container [2018-11-18 17:26:36,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:36" (2/3) ... [2018-11-18 17:26:36,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e68e95f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:26:36, skipping insertion in model container [2018-11-18 17:26:36,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:36" (3/3) ... [2018-11-18 17:26:36,263 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8_true-unreach-call_true-termination.i [2018-11-18 17:26:36,269 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:26:36,273 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:26:36,282 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:26:36,301 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:26:36,301 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:26:36,302 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:26:36,302 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:26:36,302 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:26:36,302 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:26:36,302 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:26:36,302 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:26:36,302 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:26:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 17:26:36,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:26:36,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:26:36,318 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:26:36,319 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:26:36,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:26:36,323 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-18 17:26:36,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:26:36,325 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:26:36,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:26:36,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:26:36,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:26:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:26:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:26:36,391 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 17:26:36,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:26:36 BoogieIcfgContainer [2018-11-18 17:26:36,405 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:26:36,406 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:26:36,406 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:26:36,406 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:26:36,406 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:36" (3/4) ... [2018-11-18 17:26:36,409 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 17:26:36,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:26:36,409 INFO L168 Benchmark]: Toolchain (without parser) took 479.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:26:36,411 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:26:36,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.11 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:36,412 INFO L168 Benchmark]: Boogie Preprocessor took 16.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:36,413 INFO L168 Benchmark]: RCFGBuilder took 165.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -204.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:36,413 INFO L168 Benchmark]: TraceAbstraction took 147.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:26:36,414 INFO L168 Benchmark]: Witness Printer took 3.27 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 17:26:36,416 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.11 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 165.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -204.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 147.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.27 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: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0, x=0] [L14] COND TRUE !(result >= 0.0f && result < 1.5f) VAL [IN=0, x=0] [L15] __VERIFIER_error() VAL [IN=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 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=13occurred 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 17:26:37,799 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:26:37,800 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:26:37,807 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:26:37,807 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:26:37,808 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:26:37,809 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:26:37,810 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:26:37,811 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:26:37,811 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:26:37,812 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:26:37,812 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:26:37,813 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:26:37,814 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:26:37,814 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:26:37,815 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:26:37,816 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:26:37,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:26:37,818 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:26:37,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:26:37,820 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:26:37,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:26:37,822 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:26:37,823 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:26:37,823 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:26:37,823 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:26:37,824 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:26:37,824 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:26:37,825 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:26:37,826 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:26:37,826 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:26:37,826 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:26:37,827 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:26:37,827 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:26:37,827 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:26:37,828 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:26:37,828 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 17:26:37,838 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:26:37,838 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:26:37,839 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:26:37,839 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 17:26:37,839 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:26:37,839 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:26:37,839 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:26:37,840 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:26:37,840 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:26:37,840 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:26:37,840 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:26:37,840 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:26:37,840 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:26:37,840 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:26:37,841 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 17:26:37,841 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 17:26:37,841 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:26:37,841 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:26:37,841 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:26:37,841 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:26:37,841 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:26:37,841 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:26:37,842 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:26:37,842 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:26:37,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:26:37,842 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:26:37,842 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:26:37,842 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:26:37,842 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 17:26:37,843 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:26:37,843 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 17:26:37,843 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 17:26:37,843 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_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer 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 -> 847ec304644081d839ca7e80209d45b391ec9937 [2018-11-18 17:26:37,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:26:37,878 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:26:37,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:26:37,881 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:26:37,881 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:26:37,882 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-11-18 17:26:37,916 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data/5f3e0cae9/4101970d612f46ad9cadb11cc62378d1/FLAG70be3e8fb [2018-11-18 17:26:38,304 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:26:38,304 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/sv-benchmarks/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-11-18 17:26:38,307 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data/5f3e0cae9/4101970d612f46ad9cadb11cc62378d1/FLAG70be3e8fb [2018-11-18 17:26:38,316 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/data/5f3e0cae9/4101970d612f46ad9cadb11cc62378d1 [2018-11-18 17:26:38,319 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:26:38,320 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 17:26:38,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:38,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:26:38,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:26:38,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3455a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38, skipping insertion in model container [2018-11-18 17:26:38,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:26:38,346 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:26:38,459 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:26:38,464 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:26:38,475 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:26:38,484 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:26:38,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38 WrapperNode [2018-11-18 17:26:38,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:26:38,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:26:38,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:26:38,485 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:26:38,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,504 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (1/1) ... [2018-11-18 17:26:38,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:26:38,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:26:38,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:26:38,509 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:26:38,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/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 17:26:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:26:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:26:38,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:26:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 17:26:38,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 17:26:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 17:26:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:26:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:26:38,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:26:40,716 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:26:40,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:40 BoogieIcfgContainer [2018-11-18 17:26:40,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:26:40,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:26:40,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:26:40,719 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:26:40,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:26:38" (1/3) ... [2018-11-18 17:26:40,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683e8083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:26:40, skipping insertion in model container [2018-11-18 17:26:40,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:26:38" (2/3) ... [2018-11-18 17:26:40,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683e8083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:26:40, skipping insertion in model container [2018-11-18 17:26:40,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:40" (3/3) ... [2018-11-18 17:26:40,721 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8_true-unreach-call_true-termination.i [2018-11-18 17:26:40,727 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:26:40,732 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:26:40,740 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:26:40,759 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:26:40,759 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:26:40,759 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:26:40,759 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:26:40,760 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:26:40,760 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:26:40,760 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:26:40,760 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:26:40,760 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:26:40,772 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 17:26:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:26:40,777 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:26:40,778 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:26:40,779 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:26:40,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:26:40,784 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-18 17:26:40,788 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:26:40,788 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/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 17:26:40,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:27:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:27:19,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:27:21,463 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (= c_main_~result~0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse0)))) is different from false [2018-11-18 17:27:23,526 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (= c_main_~result~0 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0))) (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse0)))) is different from true [2018-11-18 17:27:35,913 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) (_ +zero 8 24))) (fp.geq v_prenex_1 (_ +zero 8 24)) (fp.lt v_prenex_1 .cse0)))) (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse1))))) is different from false [2018-11-18 17:27:37,979 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) v_prenex_1) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) v_prenex_1) v_prenex_1) v_prenex_1)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) v_prenex_1) v_prenex_1) v_prenex_1) v_prenex_1)) (_ +zero 8 24))) (fp.geq v_prenex_1 (_ +zero 8 24)) (fp.lt v_prenex_1 .cse0)))) (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) main_~IN~0) main_~IN~0) main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) main_~IN~0) main_~IN~0) main_~IN~0) main_~IN~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse1))))) is different from true [2018-11-18 17:27:37,981 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 17:27:37,982 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:27:37,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:27:37,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:27:38,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 17:27:38,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 17:27:38,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-11-18 17:27:38,012 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-11-18 17:27:38,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:27:38,022 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-18 17:27:38,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:27:38,023 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-11-18 17:27:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:27:38,027 INFO L225 Difference]: With dead ends: 18 [2018-11-18 17:27:38,028 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:27:38,030 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-11-18 17:27:38,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:27:38,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:27:38,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:27:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:27:38,047 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-18 17:27:38,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:27:38,047 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:27:38,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 17:27:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:27:38,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:27:38,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:27:38,081 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 17:27:38,081 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:27:38,081 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:27:38,082 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 17:27:38,082 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:27:38,082 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:27:38,082 INFO L425 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-18 17:27:38,082 INFO L425 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-11-18 17:27:38,082 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-11-18 17:27:38,082 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 18) the Hoare annotation is: true [2018-11-18 17:27:38,082 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 4 18) no Hoare annotation was computed. [2018-11-18 17:27:38,082 INFO L425 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-11-18 17:27:38,083 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 18) no Hoare annotation was computed. [2018-11-18 17:27:38,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:27:38 BoogieIcfgContainer [2018-11-18 17:27:38,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:27:38,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:27:38,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:27:38,085 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:27:38,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:26:40" (3/4) ... [2018-11-18 17:27:38,088 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:27:38,092 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:27:38,093 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:27:38,095 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 17:27:38,096 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 17:27:38,096 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 17:27:38,123 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a589004c-68f6-483b-845e-756887110cab/bin-2019/uautomizer/witness.graphml [2018-11-18 17:27:38,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:27:38,123 INFO L168 Benchmark]: Toolchain (without parser) took 59804.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -155.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:38,124 INFO L168 Benchmark]: CDTParser took 0.13 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 17:27:38,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:38,125 INFO L168 Benchmark]: Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:38,126 INFO L168 Benchmark]: RCFGBuilder took 2208.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -209.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:38,127 INFO L168 Benchmark]: TraceAbstraction took 57367.26 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:27:38,127 INFO L168 Benchmark]: Witness Printer took 38.14 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 17:27:38,130 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 164.44 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2208.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -209.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 57367.26 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 38.14 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: - PositiveResult [Line: 15]: 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, 13 locations, 1 error locations. SAFE Result, 57.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 38.5s SatisfiabilityAnalysisTime, 18.6s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 1224 SizeOfPredicates, 3 NumberOfNonLiveVariables, 16 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...