./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/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 4e4f711715c9ba9b74051d365fc69961816436d0 ........................................................................................................................................................................................................................................................................................................................ 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_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/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 4e4f711715c9ba9b74051d365fc69961816436d0 ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:54:53,481 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:54:53,482 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:54:53,488 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:54:53,489 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:54:53,489 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:54:53,490 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:54:53,491 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:54:53,492 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:54:53,493 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:54:53,494 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:54:53,494 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:54:53,494 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:54:53,495 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:54:53,495 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:54:53,496 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:54:53,496 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:54:53,497 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:54:53,498 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:54:53,499 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:54:53,500 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:54:53,500 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:54:53,502 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:54:53,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:54:53,502 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:54:53,503 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:54:53,503 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:54:53,504 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:54:53,504 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:54:53,505 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:54:53,505 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:54:53,506 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:54:53,506 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:54:53,506 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:54:53,507 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:54:53,507 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:54:53,507 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 03:54:53,514 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:54:53,514 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:54:53,515 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:54:53,515 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:54:53,515 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:54:53,515 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:54:53,515 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:54:53,516 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:54:53,516 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:54:53,517 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:54:53,517 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:54:53,517 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:54:53,517 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_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/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 -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-11-23 03:54:53,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:54:53,550 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:54:53,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:54:53,553 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:54:53,553 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:54:53,554 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-23 03:54:53,600 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data/b3f156e48/ae30267811af4436a920f6f465b93df4/FLAG4f464d3f2 [2018-11-23 03:54:53,927 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:54:53,927 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-23 03:54:53,931 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data/b3f156e48/ae30267811af4436a920f6f465b93df4/FLAG4f464d3f2 [2018-11-23 03:54:54,357 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data/b3f156e48/ae30267811af4436a920f6f465b93df4 [2018-11-23 03:54:54,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:54:54,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:54:54,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:54:54,361 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:54:54,364 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:54:54,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3438b8ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54, skipping insertion in model container [2018-11-23 03:54:54,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:54:54,387 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:54:54,485 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:54:54,489 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:54:54,499 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:54:54,507 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:54:54,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54 WrapperNode [2018-11-23 03:54:54,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:54:54,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:54:54,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:54:54,508 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:54:54,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:54:54,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:54:54,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:54:54,519 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:54:54,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... [2018-11-23 03:54:54,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:54:54,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:54:54,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:54:54,529 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:54:54,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/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 [2018-11-23 03:54:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:54:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:54:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:54:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:54:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:54:54,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:54:54,661 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:54:54,662 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 03:54:54,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:54:54 BoogieIcfgContainer [2018-11-23 03:54:54,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:54:54,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:54:54,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:54:54,664 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:54:54,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:54:54" (1/3) ... [2018-11-23 03:54:54,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7faa1c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:54:54, skipping insertion in model container [2018-11-23 03:54:54,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:54" (2/3) ... [2018-11-23 03:54:54,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7faa1c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:54:54, skipping insertion in model container [2018-11-23 03:54:54,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:54:54" (3/3) ... [2018-11-23 03:54:54,666 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-11-23 03:54:54,672 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:54:54,676 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:54:54,685 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:54:54,701 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:54:54,702 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:54:54,702 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:54:54,702 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:54:54,702 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:54:54,702 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:54:54,702 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:54:54,702 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:54:54,703 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:54:54,714 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-23 03:54:54,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 03:54:54,718 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:54:54,718 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:54:54,720 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:54:54,724 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:54:54,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-23 03:54:54,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:54:54,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:54:54,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:54:54,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:54:54,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:54:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:54:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 03:54:54,783 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #15#return; [?] CALL call #t~ret0 := main(); [?] ~fs1~0 := ~someBinaryArithmeticFLOAToperation(2.0, 6.0);~fs2~0 := ~someBinaryArithmeticFLOAToperation(~fs1~0, 6.0); [?] assume !(2 == ~convertFLOATToINT(~fs2~0)); [?] assume !false; [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] ~fs1~0 := ~someBinaryArithmeticFLOAToperation(2.0, 6.0); [L7] ~fs2~0 := ~someBinaryArithmeticFLOAToperation(~fs1~0, 6.0); [L8] assume !(2 == ~convertFLOATToINT(~fs2~0)); [L8] assert false; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] ~fs1~0 := ~someBinaryArithmeticFLOAToperation(2.0, 6.0); [L7] ~fs2~0 := ~someBinaryArithmeticFLOAToperation(~fs1~0, 6.0); [L8] assume !(2 == ~convertFLOATToINT(~fs2~0)); [L8] assert false; [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] ~fs1~0 := ~someBinaryArithmeticFLOAToperation(2.0, 6.0); [L7] ~fs2~0 := ~someBinaryArithmeticFLOAToperation(~fs1~0, 6.0); [L8] COND TRUE !(2 == ~convertFLOATToINT(~fs2~0)) [L8] assert false; ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] ~fs1~0 := ~someBinaryArithmeticFLOAToperation(2.0, 6.0); [L7] ~fs2~0 := ~someBinaryArithmeticFLOAToperation(~fs1~0, 6.0); [L8] COND TRUE !(2 == ~convertFLOATToINT(~fs2~0)) [L8] assert false; [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] ~fs1~0 := ~someBinaryArithmeticFLOAToperation(2.0, 6.0); [L7] ~fs2~0 := ~someBinaryArithmeticFLOAToperation(~fs1~0, 6.0); [L8] COND TRUE !(2 == ~convertFLOATToINT(~fs2~0)) [L8] assert false; ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L6] ~fs1~0 := ~someBinaryArithmeticFLOAToperation(2.0, 6.0); [L7] ~fs2~0 := ~someBinaryArithmeticFLOAToperation(~fs1~0, 6.0); [L8] COND TRUE !(2 == ~convertFLOATToINT(~fs2~0)) [L8] assert false; [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() ----- [2018-11-23 03:54:54,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:54:54 BoogieIcfgContainer [2018-11-23 03:54:54,796 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:54:54,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:54:54,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:54:54,796 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:54:54,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:54:54" (3/4) ... [2018-11-23 03:54:54,799 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 03:54:54,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:54:54,800 INFO L168 Benchmark]: Toolchain (without parser) took 440.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:54:54,801 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-23 03:54:54,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.58 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:54:54,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.44 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:54:54,802 INFO L168 Benchmark]: Boogie Preprocessor took 9.83 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. [2018-11-23 03:54:54,803 INFO L168 Benchmark]: RCFGBuilder took 132.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-23 03:54:54,804 INFO L168 Benchmark]: TraceAbstraction took 133.39 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:54:54,804 INFO L168 Benchmark]: Witness Printer took 3.08 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. [2018-11-23 03:54:54,806 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 146.58 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 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 11.44 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.83 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 132.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -174.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 133.39 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: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.08 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: 8]: 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 8, overapproximation of someBinaryArithmeticFLOAToperation at line 6. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.0s 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-aa41828 [2018-11-23 03:54:56,232 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:54:56,233 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:54:56,242 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:54:56,242 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:54:56,243 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:54:56,243 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:54:56,245 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:54:56,246 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:54:56,246 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:54:56,247 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:54:56,247 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:54:56,248 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:54:56,248 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:54:56,249 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:54:56,250 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:54:56,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:54:56,251 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:54:56,253 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:54:56,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:54:56,254 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:54:56,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:54:56,257 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:54:56,257 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:54:56,257 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:54:56,258 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:54:56,258 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:54:56,259 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:54:56,260 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:54:56,260 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:54:56,260 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:54:56,261 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:54:56,261 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:54:56,261 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:54:56,262 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:54:56,262 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:54:56,262 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 03:54:56,272 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:54:56,273 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:54:56,273 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:54:56,273 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:54:56,274 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:54:56,274 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:54:56,274 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:54:56,274 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:54:56,274 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:54:56,275 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:54:56,275 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:54:56,275 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:54:56,275 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:54:56,275 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:54:56,275 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 03:54:56,275 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 03:54:56,276 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:54:56,276 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:54:56,276 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:54:56,276 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:54:56,276 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:54:56,276 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:54:56,276 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:54:56,277 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:54:56,277 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:54:56,277 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:54:56,277 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:54:56,277 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:54:56,277 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 03:54:56,277 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:54:56,277 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 03:54:56,278 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 03:54:56,278 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_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/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 -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-11-23 03:54:56,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:54:56,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:54:56,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:54:56,321 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:54:56,321 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:54:56,321 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-23 03:54:56,365 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data/98c225c2f/62446ade50514e47aa793754b0757b36/FLAG3cc4d57e5 [2018-11-23 03:54:56,680 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:54:56,681 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-23 03:54:56,684 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data/98c225c2f/62446ade50514e47aa793754b0757b36/FLAG3cc4d57e5 [2018-11-23 03:54:57,121 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/data/98c225c2f/62446ade50514e47aa793754b0757b36 [2018-11-23 03:54:57,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:54:57,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:54:57,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:54:57,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:54:57,127 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:54:57,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2129d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57, skipping insertion in model container [2018-11-23 03:54:57,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:54:57,146 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:54:57,251 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:54:57,256 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:54:57,268 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:54:57,279 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:54:57,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57 WrapperNode [2018-11-23 03:54:57,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:54:57,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:54:57,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:54:57,281 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:54:57,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:54:57,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:54:57,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:54:57,296 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:54:57,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... [2018-11-23 03:54:57,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:54:57,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:54:57,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:54:57,310 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:54:57,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/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 [2018-11-23 03:54:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:54:57,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:54:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:54:57,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:54:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:54:57,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:54:57,475 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:54:57,475 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 03:54:57,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:54:57 BoogieIcfgContainer [2018-11-23 03:54:57,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:54:57,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:54:57,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:54:57,479 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:54:57,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:54:57" (1/3) ... [2018-11-23 03:54:57,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205ffbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:54:57, skipping insertion in model container [2018-11-23 03:54:57,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:57" (2/3) ... [2018-11-23 03:54:57,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205ffbd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:54:57, skipping insertion in model container [2018-11-23 03:54:57,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:54:57" (3/3) ... [2018-11-23 03:54:57,481 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-11-23 03:54:57,489 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:54:57,494 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:54:57,507 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:54:57,527 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:54:57,528 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:54:57,528 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:54:57,528 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:54:57,528 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:54:57,528 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:54:57,528 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:54:57,528 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:54:57,528 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:54:57,541 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-23 03:54:57,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 03:54:57,545 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:54:57,546 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:54:57,547 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:54:57,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:54:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-23 03:54:57,553 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 03:54:57,554 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/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 [2018-11-23 03:54:57,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:54:57,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:54:57,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:54:57,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:54:57,629 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 03:54:57,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:54:57,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 03:54:57,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 03:54:57,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 03:54:57,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 03:54:57,655 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-23 03:54:57,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:54:57,678 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-23 03:54:57,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 03:54:57,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-23 03:54:57,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:54:57,686 INFO L225 Difference]: With dead ends: 16 [2018-11-23 03:54:57,686 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 03:54:57,688 INFO L631 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 [2018-11-23 03:54:57,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 03:54:57,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 03:54:57,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 03:54:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 03:54:57,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-23 03:54:57,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:54:57,705 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 03:54:57,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 03:54:57,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 03:54:57,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:54:57,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 03:54:57,742 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 03:54:57,742 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:54:57,742 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:54:57,743 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 03:54:57,743 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:54:57,743 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:54:57,743 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 3 9) the Hoare annotation is: true [2018-11-23 03:54:57,743 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 3 9) no Hoare annotation was computed. [2018-11-23 03:54:57,743 INFO L448 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-23 03:54:57,744 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-23 03:54:57,744 INFO L448 ceAbstractionStarter]: For program point L8-3(lines 3 9) no Hoare annotation was computed. [2018-11-23 03:54:57,744 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-23 03:54:57,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:54:57 BoogieIcfgContainer [2018-11-23 03:54:57,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:54:57,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:54:57,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:54:57,747 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:54:57,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:54:57" (3/4) ... [2018-11-23 03:54:57,750 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:54:57,756 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 03:54:57,756 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 03:54:57,759 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 03:54:57,759 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 03:54:57,759 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 03:54:57,782 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71122200-9a2c-4c0e-9caf-ab8cf84ad3ce/bin-2019/uautomizer/witness.graphml [2018-11-23 03:54:57,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:54:57,783 INFO L168 Benchmark]: Toolchain (without parser) took 659.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -118.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:54:57,784 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. [2018-11-23 03:54:57,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.87 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. [2018-11-23 03:54:57,785 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.78 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. [2018-11-23 03:54:57,785 INFO L168 Benchmark]: Boogie Preprocessor took 14.02 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:54:57,785 INFO L168 Benchmark]: RCFGBuilder took 165.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:54:57,786 INFO L168 Benchmark]: TraceAbstraction took 270.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-11-23 03:54:57,787 INFO L168 Benchmark]: Witness Printer took 35.70 ms. Allocated memory is still 1.1 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. [2018-11-23 03:54:57,789 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 155.87 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 14.78 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. * Boogie Preprocessor took 14.02 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 165.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -167.5 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 270.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Witness Printer took 35.70 ms. Allocated memory is still 1.1 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: 8]: 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, 120 SizeOfPredicates, 2 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 3 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...