./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_4_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_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/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 fddb92276d9c39d57f5b99be31dfd08cb5ab054d ................................................................................................................................................................................................................................................................................................................................................................... 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_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/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 fddb92276d9c39d57f5b99be31dfd08cb5ab054d ........................................................................................................................................................................................................................................................................ 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 07:40:14,461 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:40:14,462 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:40:14,468 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:40:14,468 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:40:14,469 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:40:14,470 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:40:14,471 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:40:14,473 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:40:14,473 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:40:14,474 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:40:14,474 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:40:14,475 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:40:14,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:40:14,476 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:40:14,477 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:40:14,477 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:40:14,478 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:40:14,479 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:40:14,480 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:40:14,481 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:40:14,481 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:40:14,482 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:40:14,483 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:40:14,483 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:40:14,483 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:40:14,484 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:40:14,484 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:40:14,485 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:40:14,485 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:40:14,485 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:40:14,486 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:40:14,486 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:40:14,486 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:40:14,486 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:40:14,487 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:40:14,487 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 07:40:14,497 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:40:14,497 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:40:14,498 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:40:14,498 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:40:14,499 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:40:14,499 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:40:14,499 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:40:14,499 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:40:14,499 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:40:14,500 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:40:14,500 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:40:14,500 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:40:14,500 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:40:14,500 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:40:14,500 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:40:14,500 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:40:14,500 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:40:14,501 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:40:14,501 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:40:14,501 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:40:14,501 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:40:14,501 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:40:14,501 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:40:14,501 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:40:14,502 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:40:14,502 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:40:14,502 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:40:14,502 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 07:40:14,502 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:40:14,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:40:14,502 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_0d2d7535-de5e-4e1c-824d-6b4f81d36668/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 -> fddb92276d9c39d57f5b99be31dfd08cb5ab054d [2018-11-23 07:40:14,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:40:14,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:40:14,534 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:40:14,535 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:40:14,535 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:40:14,536 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-11-23 07:40:14,574 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data/553e6dc01/ed48801a0d474157bda3ca64bf302196/FLAG034f9080f [2018-11-23 07:40:14,924 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:40:14,924 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-11-23 07:40:14,929 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data/553e6dc01/ed48801a0d474157bda3ca64bf302196/FLAG034f9080f [2018-11-23 07:40:15,345 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data/553e6dc01/ed48801a0d474157bda3ca64bf302196 [2018-11-23 07:40:15,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:40:15,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:40:15,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:40:15,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:40:15,354 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:40:15,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b02929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15, skipping insertion in model container [2018-11-23 07:40:15,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:40:15,384 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:40:15,516 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:40:15,519 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:40:15,534 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:40:15,544 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:40:15,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15 WrapperNode [2018-11-23 07:40:15,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:40:15,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:40:15,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:40:15,545 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:40:15,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:40:15,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:40:15,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:40:15,560 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:40:15,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,571 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... [2018-11-23 07:40:15,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:40:15,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:40:15,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:40:15,573 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:40:15,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/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 07:40:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:40:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:40:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:40:15,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:40:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:40:15,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:40:15,752 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:40:15,752 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 07:40:15,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:15 BoogieIcfgContainer [2018-11-23 07:40:15,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:40:15,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:40:15,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:40:15,756 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:40:15,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:40:15" (1/3) ... [2018-11-23 07:40:15,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3e5c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:40:15, skipping insertion in model container [2018-11-23 07:40:15,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:15" (2/3) ... [2018-11-23 07:40:15,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c3e5c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:40:15, skipping insertion in model container [2018-11-23 07:40:15,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:15" (3/3) ... [2018-11-23 07:40:15,759 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4_true-unreach-call_true-termination.i [2018-11-23 07:40:15,766 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:40:15,771 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:40:15,782 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:40:15,805 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:40:15,806 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:40:15,806 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:40:15,806 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:40:15,806 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:40:15,806 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:40:15,806 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:40:15,806 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:40:15,806 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:40:15,821 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-23 07:40:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 07:40:15,825 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:15,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:15,828 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:15,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:15,832 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-23 07:40:15,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:40:15,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:40:15,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:15,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:40:15,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:40:15,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:40:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:40:15,915 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #16#return; [?] CALL call #t~ret2 := main(); [?] ~IN~0 := #t~nondet1;havoc #t~nondet1;assume 0 != (if ~someBinaryFLOATComparisonOperation(~IN~0, 0.0) && ~someBinaryFLOATComparisonOperation(~IN~0, 1.0) then 1 else 0);~x~0 := ~IN~0;~result~0 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, ~x~0), ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, ~x~0), ~x~0), ~x~0), ~x~0)); VAL [main_~IN~0=0.0, main_~x~0=0.0] [?] assume !(~someBinaryFLOATComparisonOperation(~result~0, 0.0) && ~someBinaryFLOATComparisonOperation(~result~0, 1.39844)); VAL [main_~IN~0=0.0, main_~x~0=0.0] [?] assume !false; VAL [main_~IN~0=0.0, main_~x~0=0.0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~IN~0 := #t~nondet1; [L6] havoc #t~nondet1; [L7] assume 0 != (if ~someBinaryFLOATComparisonOperation(~IN~0, 0.0) && ~someBinaryFLOATComparisonOperation(~IN~0, 1.0) then 1 else 0); [L9] ~x~0 := ~IN~0; [L11-L12] ~result~0 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, ~x~0), ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, ~x~0), ~x~0), ~x~0), ~x~0)); VAL [~IN~0=0.0, ~x~0=0.0] [L14-L15] assume !(~someBinaryFLOATComparisonOperation(~result~0, 0.0) && ~someBinaryFLOATComparisonOperation(~result~0, 1.39844)); VAL [~IN~0=0.0, ~x~0=0.0] [L15] assert false; VAL [~IN~0=0.0, ~x~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~IN~0 := #t~nondet1; [L6] havoc #t~nondet1; [L7] assume 0 != (if ~someBinaryFLOATComparisonOperation(~IN~0, 0.0) && ~someBinaryFLOATComparisonOperation(~IN~0, 1.0) then 1 else 0); [L9] ~x~0 := ~IN~0; [L11-L12] ~result~0 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, ~x~0), ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, ~x~0), ~x~0), ~x~0), ~x~0)); VAL [~IN~0=0.0, ~x~0=0.0] [L14-L15] assume !(~someBinaryFLOATComparisonOperation(~result~0, 0.0) && ~someBinaryFLOATComparisonOperation(~result~0, 1.39844)); VAL [~IN~0=0.0, ~x~0=0.0] [L15] assert false; VAL [~IN~0=0.0, ~x~0=0.0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~IN~0 := #t~nondet1; [L6] havoc #t~nondet1; [L7] assume 0 != (if ~someBinaryFLOATComparisonOperation(~IN~0, 0.0) && ~someBinaryFLOATComparisonOperation(~IN~0, 1.0) then 1 else 0); [L9] ~x~0 := ~IN~0; [L11-L12] ~result~0 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, ~x~0), ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, ~x~0), ~x~0), ~x~0), ~x~0)); VAL [~IN~0=0.0, ~x~0=0.0] [L14] COND TRUE !(~someBinaryFLOATComparisonOperation(~result~0, 0.0) && ~someBinaryFLOATComparisonOperation(~result~0, 1.39844)) VAL [~IN~0=0.0, ~x~0=0.0] [L15] assert false; VAL [~IN~0=0.0, ~x~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~IN~0 := #t~nondet1; [L6] havoc #t~nondet1; [L7] assume 0 != (if ~someBinaryFLOATComparisonOperation(~IN~0, 0.0) && ~someBinaryFLOATComparisonOperation(~IN~0, 1.0) then 1 else 0); [L9] ~x~0 := ~IN~0; [L11-L12] ~result~0 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, ~x~0), ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, ~x~0), ~x~0), ~x~0), ~x~0)); VAL [~IN~0=0.0, ~x~0=0.0] [L14] COND TRUE !(~someBinaryFLOATComparisonOperation(~result~0, 0.0) && ~someBinaryFLOATComparisonOperation(~result~0, 1.39844)) VAL [~IN~0=0.0, ~x~0=0.0] [L15] assert false; VAL [~IN~0=0.0, ~x~0=0.0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~IN~0 := #t~nondet1; [L6] havoc #t~nondet1; [L7] assume 0 != (if ~someBinaryFLOATComparisonOperation(~IN~0, 0.0) && ~someBinaryFLOATComparisonOperation(~IN~0, 1.0) then 1 else 0); [L9] ~x~0 := ~IN~0; [L11-L12] ~result~0 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, ~x~0), ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, ~x~0), ~x~0), ~x~0), ~x~0)); VAL [~IN~0=0.0, ~x~0=0.0] [L14] COND TRUE !(~someBinaryFLOATComparisonOperation(~result~0, 0.0) && ~someBinaryFLOATComparisonOperation(~result~0, 1.39844)) VAL [~IN~0=0.0, ~x~0=0.0] [L15] assert false; VAL [~IN~0=0.0, ~x~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret2 := main(); [L6] ~IN~0 := #t~nondet1; [L6] havoc #t~nondet1; [L7] assume 0 != (if ~someBinaryFLOATComparisonOperation(~IN~0, 0.0) && ~someBinaryFLOATComparisonOperation(~IN~0, 1.0) then 1 else 0); [L9] ~x~0 := ~IN~0; [L11-L12] ~result~0 := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(1.0, ~someBinaryArithmeticFLOAToperation(0.5, ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.125, ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0625, ~x~0), ~x~0), ~x~0)), ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(0.0390625, ~x~0), ~x~0), ~x~0), ~x~0)); VAL [~IN~0=0.0, ~x~0=0.0] [L14] COND TRUE !(~someBinaryFLOATComparisonOperation(~result~0, 0.0) && ~someBinaryFLOATComparisonOperation(~result~0, 1.39844)) VAL [~IN~0=0.0, ~x~0=0.0] [L15] assert false; VAL [~IN~0=0.0, ~x~0=0.0] [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 < 1.39844f) VAL [IN=0, x=0] [L15] __VERIFIER_error() VAL [IN=0, x=0] ----- [2018-11-23 07:40:15,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:40:15 BoogieIcfgContainer [2018-11-23 07:40:15,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:40:15,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:40:15,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:40:15,938 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:40:15,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:15" (3/4) ... [2018-11-23 07:40:15,942 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 07:40:15,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:40:15,943 INFO L168 Benchmark]: Toolchain (without parser) took 594.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 959.3 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:40:15,945 INFO L168 Benchmark]: CDTParser took 0.13 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 07:40:15,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.58 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 07:40:15,946 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.74 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 07:40:15,946 INFO L168 Benchmark]: Boogie Preprocessor took 12.79 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:40:15,947 INFO L168 Benchmark]: RCFGBuilder took 180.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-23 07:40:15,947 INFO L168 Benchmark]: TraceAbstraction took 183.67 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:40:15,948 INFO L168 Benchmark]: Witness Printer took 5.04 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 07:40:15,951 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.58 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 14.74 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. * Boogie Preprocessor took 12.79 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 180.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 183.67 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.04 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 < 1.39844f) 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-aa41828 [2018-11-23 07:40:17,608 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:40:17,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:40:17,616 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:40:17,616 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:40:17,617 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:40:17,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:40:17,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:40:17,620 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:40:17,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:40:17,621 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:40:17,621 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:40:17,622 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:40:17,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:40:17,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:40:17,623 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:40:17,624 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:40:17,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:40:17,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:40:17,628 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:40:17,628 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:40:17,629 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:40:17,631 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:40:17,631 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:40:17,631 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:40:17,632 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:40:17,632 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:40:17,633 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:40:17,634 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:40:17,634 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:40:17,634 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:40:17,635 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:40:17,635 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:40:17,635 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:40:17,636 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:40:17,636 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:40:17,637 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 07:40:17,647 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:40:17,647 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:40:17,648 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:40:17,648 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:40:17,648 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:40:17,649 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:40:17,649 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:40:17,649 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:40:17,649 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:40:17,649 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:40:17,649 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:40:17,649 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:40:17,650 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:40:17,650 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:40:17,650 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 07:40:17,650 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 07:40:17,650 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:40:17,650 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:40:17,650 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:40:17,651 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:40:17,651 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:40:17,651 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:40:17,651 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:40:17,651 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:40:17,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:40:17,651 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:40:17,652 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:40:17,652 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:40:17,652 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 07:40:17,652 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:40:17,652 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 07:40:17,652 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 07:40:17,652 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_0d2d7535-de5e-4e1c-824d-6b4f81d36668/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 -> fddb92276d9c39d57f5b99be31dfd08cb5ab054d [2018-11-23 07:40:17,680 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:40:17,688 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:40:17,690 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:40:17,691 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:40:17,691 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:40:17,692 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-11-23 07:40:17,725 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data/b80e5b837/a0eef37a1342477d99f1c413facf58e6/FLAG374c3491b [2018-11-23 07:40:18,015 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:40:18,015 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/sv-benchmarks/c/floats-cdfpl/square_4_true-unreach-call_true-termination.i [2018-11-23 07:40:18,019 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data/b80e5b837/a0eef37a1342477d99f1c413facf58e6/FLAG374c3491b [2018-11-23 07:40:18,028 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/data/b80e5b837/a0eef37a1342477d99f1c413facf58e6 [2018-11-23 07:40:18,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:40:18,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:40:18,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:40:18,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:40:18,036 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:40:18,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70e994ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18, skipping insertion in model container [2018-11-23 07:40:18,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:40:18,059 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:40:18,164 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:40:18,169 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:40:18,179 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:40:18,189 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:40:18,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18 WrapperNode [2018-11-23 07:40:18,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:40:18,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:40:18,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:40:18,190 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:40:18,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:40:18,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:40:18,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:40:18,204 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:40:18,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... [2018-11-23 07:40:18,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:40:18,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:40:18,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:40:18,221 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:40:18,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/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 07:40:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:40:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:40:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:40:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:40:18,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:40:18,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:40:20,449 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:40:20,449 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 07:40:20,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:20 BoogieIcfgContainer [2018-11-23 07:40:20,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:40:20,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:40:20,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:40:20,453 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:40:20,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:40:18" (1/3) ... [2018-11-23 07:40:20,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d983f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:40:20, skipping insertion in model container [2018-11-23 07:40:20,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:40:18" (2/3) ... [2018-11-23 07:40:20,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d983f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:40:20, skipping insertion in model container [2018-11-23 07:40:20,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:20" (3/3) ... [2018-11-23 07:40:20,456 INFO L112 eAbstractionObserver]: Analyzing ICFG square_4_true-unreach-call_true-termination.i [2018-11-23 07:40:20,461 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:40:20,465 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:40:20,474 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:40:20,492 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:40:20,492 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:40:20,492 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:40:20,492 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:40:20,493 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:40:20,493 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:40:20,493 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:40:20,493 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:40:20,493 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:40:20,507 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-23 07:40:20,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 07:40:20,512 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:40:20,512 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:40:20,514 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:40:20,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:40:20,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-23 07:40:20,520 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 07:40:20,520 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/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 07:40:20,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:53:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:53:40,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:53:42,821 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 [2018-11-23 07:53:44,879 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 [2018-11-23 07:53:57,264 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 (fp.geq v_prenex_1 (_ +zero 8 24)) (not (fp.lt (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)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 34961.0 25000.0)))) (fp.lt v_prenex_1 .cse0)))) (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse1) (not (fp.geq (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)) (_ +zero 8 24))))))) is different from false [2018-11-23 07:53:59,332 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 (fp.geq v_prenex_1 (_ +zero 8 24)) (not (fp.lt (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)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 34961.0 25000.0)))) (fp.lt v_prenex_1 .cse0)))) (exists ((main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq main_~IN~0 (_ +zero 8 24)) (fp.lt main_~IN~0 .cse1) (not (fp.geq (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)) (_ +zero 8 24))))))) is different from true [2018-11-23 07:53:59,335 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 07:53:59,335 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:53:59,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:53:59,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 07:53:59,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:53:59,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:53:59,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-11-23 07:53:59,366 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-11-23 07:53:59,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:53:59,379 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-23 07:53:59,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:53:59,380 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-11-23 07:53:59,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:53:59,386 INFO L225 Difference]: With dead ends: 18 [2018-11-23 07:53:59,386 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:53:59,389 INFO L631 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 [2018-11-23 07:53:59,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:53:59,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:53:59,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:53:59,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:53:59,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-23 07:53:59,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:53:59,404 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:53:59,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:53:59,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:53:59,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:53:59,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:53:59,440 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 07:53:59,440 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:53:59,440 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:53:59,441 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 07:53:59,441 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:53:59,441 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:53:59,441 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-11-23 07:53:59,443 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-11-23 07:53:59,443 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 4 18) the Hoare annotation is: true [2018-11-23 07:53:59,443 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 4 18) no Hoare annotation was computed. [2018-11-23 07:53:59,443 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-11-23 07:53:59,443 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4 18) no Hoare annotation was computed. [2018-11-23 07:53:59,443 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-11-23 07:53:59,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:53:59 BoogieIcfgContainer [2018-11-23 07:53:59,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:53:59,446 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:53:59,446 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:53:59,446 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:53:59,447 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:40:20" (3/4) ... [2018-11-23 07:53:59,450 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:53:59,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:53:59,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:53:59,459 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 07:53:59,460 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 07:53:59,460 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:53:59,483 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0d2d7535-de5e-4e1c-824d-6b4f81d36668/bin-2019/uautomizer/witness.graphml [2018-11-23 07:53:59,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:53:59,483 INFO L168 Benchmark]: Toolchain (without parser) took 821452.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -122.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-11-23 07:53:59,484 INFO L168 Benchmark]: CDTParser took 0.12 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 07:53:59,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.05 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 941.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-23 07:53:59,485 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.58 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:53:59,486 INFO L168 Benchmark]: Boogie Preprocessor took 17.00 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:53:59,486 INFO L168 Benchmark]: RCFGBuilder took 2228.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:53:59,486 INFO L168 Benchmark]: TraceAbstraction took 818995.20 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:53:59,487 INFO L168 Benchmark]: Witness Printer took 37.05 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 07:53:59,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 157.05 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 941.1 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.58 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.00 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2228.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 818995.20 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * Witness Printer took 37.05 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, 818.9s 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, 800.0s SatisfiabilityAnalysisTime, 18.7s 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...