./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float3_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_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ............................................................................................................................................................................................................................................................................................................................ 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 12:21:37,420 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:21:37,422 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:21:37,430 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:21:37,431 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:21:37,431 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:21:37,432 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:21:37,433 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:21:37,434 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:21:37,435 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:21:37,436 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:21:37,436 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:21:37,437 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:21:37,437 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:21:37,439 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:21:37,439 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:21:37,440 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:21:37,441 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:21:37,442 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:21:37,443 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:21:37,444 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:21:37,445 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:21:37,446 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:21:37,447 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:21:37,447 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:21:37,447 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:21:37,448 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:21:37,448 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:21:37,449 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:21:37,451 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:21:37,451 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:21:37,451 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:21:37,451 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:21:37,451 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:21:37,452 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:21:37,453 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:21:37,453 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 12:21:37,463 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:21:37,463 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:21:37,464 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:21:37,464 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:21:37,465 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:21:37,465 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:21:37,465 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:21:37,465 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:21:37,465 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:21:37,465 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:21:37,465 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:21:37,466 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:21:37,466 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:21:37,466 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:21:37,466 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:21:37,466 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:21:37,466 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:21:37,466 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:21:37,466 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:21:37,467 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:21:37,467 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:21:37,467 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:21:37,467 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:21:37,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:21:37,467 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:21:37,467 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:21:37,468 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:21:37,468 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 12:21:37,468 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:21:37,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:21:37,468 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_e7465dad-f13a-4957-be52-1ee6817b13dd/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-11-23 12:21:37,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:21:37,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:21:37,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:21:37,505 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:21:37,505 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:21:37,506 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-23 12:21:37,556 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data/e5d3f0ff4/2a698fe0038844f4b86b79c02645a8bc/FLAG148f65afa [2018-11-23 12:21:37,899 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:21:37,900 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-23 12:21:37,905 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data/e5d3f0ff4/2a698fe0038844f4b86b79c02645a8bc/FLAG148f65afa [2018-11-23 12:21:37,916 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data/e5d3f0ff4/2a698fe0038844f4b86b79c02645a8bc [2018-11-23 12:21:37,918 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:21:37,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:21:37,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:21:37,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:21:37,922 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:21:37,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:21:37" (1/1) ... [2018-11-23 12:21:37,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25ac8c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:37, skipping insertion in model container [2018-11-23 12:21:37,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:21:37" (1/1) ... [2018-11-23 12:21:37,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:21:37,944 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:21:38,048 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:21:38,051 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:21:38,061 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:21:38,069 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:21:38,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38 WrapperNode [2018-11-23 12:21:38,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:21:38,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:21:38,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:21:38,071 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:21:38,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:21:38,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:21:38,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:21:38,085 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:21:38,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,091 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... [2018-11-23 12:21:38,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:21:38,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:21:38,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:21:38,097 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:21:38,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/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 12:21:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:21:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:21:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:21:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:21:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:21:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:21:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-11-23 12:21:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-11-23 12:21:38,272 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:21:38,272 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 12:21:38,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:38 BoogieIcfgContainer [2018-11-23 12:21:38,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:21:38,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:21:38,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:21:38,275 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:21:38,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:21:37" (1/3) ... [2018-11-23 12:21:38,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc340af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:21:38, skipping insertion in model container [2018-11-23 12:21:38,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:38" (2/3) ... [2018-11-23 12:21:38,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc340af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:21:38, skipping insertion in model container [2018-11-23 12:21:38,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:38" (3/3) ... [2018-11-23 12:21:38,278 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-11-23 12:21:38,284 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:21:38,289 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:21:38,302 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:21:38,329 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:21:38,330 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:21:38,330 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:21:38,330 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:21:38,330 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:21:38,330 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:21:38,330 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:21:38,330 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:21:38,331 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:21:38,345 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 12:21:38,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 12:21:38,349 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:21:38,349 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:21:38,351 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:21:38,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:21:38,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-11-23 12:21:38,357 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 12:21:38,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 12:21:38,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:21:38,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:21:38,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:21:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:21:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 12:21:38,438 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|old(~d~0)|=1.0, ~d~0=1.0] [?] ~d~0 := 0.0; VAL [|old(~d~0)|=1.0, ~d~0=0.0] [?] assume true; VAL [|old(~d~0)|=1.0, ~d~0=0.0] [?] RET #26#return; VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [|old(~d~0)|=0.0, ~d~0=0.0] [?] ~x~0 := 2;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [main_~x~0=2, |main_#t~nondet0|=1, |old(~d~0)|=0.0, ~d~0=0.0] [?] assume 0 != #t~nondet0;havoc #t~nondet0;~x~0 := 4; VAL [main_~x~0=4, |old(~d~0)|=0.0, ~d~0=0.0] [?] CALL call f1(); VAL [|old(~d~0)|=0.0, ~d~0=0.0] [?] ~d~0 := 1.0; VAL [|old(~d~0)|=0.0, ~d~0=1.0] [?] assume true; VAL [|old(~d~0)|=0.0, ~d~0=1.0] [?] RET #30#return; VAL [main_~x~0=4, |old(~d~0)|=0.0, ~d~0=1.0] [?] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0)));~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [main_~x~0=4, |old(~d~0)|=0.0] [?] assume !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0); VAL [main_~x~0=4, |old(~d~0)|=0.0] [?] assume !false; VAL [main_~x~0=4, |old(~d~0)|=0.0] [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] ensures true; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] assume 0 != #t~nondet0; [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L6-L9] ensures true; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] assume !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0); VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] ensures true; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] assume 0 != #t~nondet0; [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L6-L9] ensures true; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] assume !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0); VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] COND TRUE 0 != #t~nondet0 [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0) VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] COND TRUE 0 != #t~nondet0 [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0) VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] COND TRUE 0 != #t~nondet0 [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0) VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [old(~d~0)=1.0, ~d~0=1.0] [L4] ~d~0 := 0.0; VAL [old(~d~0)=1.0, ~d~0=0.0] [?] RET call ULTIMATE.init(); VAL [~d~0=0.0] [?] CALL call #t~ret1 := main(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L13] ~x~0 := 2; [L15] assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; VAL [#t~nondet0=1, old(~d~0)=0.0, ~d~0=0.0, ~x~0=2] [L15-L16] COND TRUE 0 != #t~nondet0 [L15] havoc #t~nondet0; [L16] ~x~0 := 4; VAL [old(~d~0)=0.0, ~d~0=0.0, ~x~0=4] [L18] CALL call f1(); VAL [old(~d~0)=0.0, ~d~0=0.0] [L8] ~d~0 := 1.0; VAL [old(~d~0)=0.0, ~d~0=1.0] [L18] RET call f1(); VAL [old(~d~0)=0.0, ~d~0=1.0, ~x~0=4] [L20] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if 2 == ~x~0 then 1 else 0))); [L22] ~d~0 := ~someBinaryArithmeticDOUBLEoperation(~d~0, ~convertINTToDOUBLE((if ~x~0 > 3 then 1 else 0))); VAL [old(~d~0)=0.0, ~x~0=4] [L24] COND TRUE !~someBinaryDOUBLEComparisonOperation(~d~0, 2.0) VAL [old(~d~0)=0.0, ~x~0=4] [L24] assert false; VAL [old(~d~0)=0.0, ~x~0=4] [L4] double d = 0.0; VAL [\old(d)=1, d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [\old(d)=0, d=0, x=4] [L18] CALL f1() VAL [\old(d)=0, d=0] [L8] d = 1.0 VAL [\old(d)=0, d=1] [L18] RET f1() VAL [\old(d)=0, d=1, x=4] [L20] d += (x == 2) [L22] d += (x > 3) VAL [\old(d)=0, x=4] [L24] COND TRUE !(d == 2.0) VAL [\old(d)=0, x=4] [L24] __VERIFIER_error() VAL [\old(d)=0, x=4] ----- [2018-11-23 12:21:38,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:21:38 BoogieIcfgContainer [2018-11-23 12:21:38,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:21:38,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:21:38,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:21:38,463 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:21:38,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:38" (3/4) ... [2018-11-23 12:21:38,466 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 12:21:38,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:21:38,467 INFO L168 Benchmark]: Toolchain (without parser) took 548.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -116.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:21:38,468 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:21:38,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.87 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:38,469 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.87 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:21:38,469 INFO L168 Benchmark]: Boogie Preprocessor took 12.31 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 940.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:38,470 INFO L168 Benchmark]: RCFGBuilder took 175.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:38,471 INFO L168 Benchmark]: TraceAbstraction took 190.06 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:38,471 INFO L168 Benchmark]: Witness Printer took 3.14 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:38,474 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.87 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 13.87 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.31 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 940.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 175.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 190.06 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.14 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [\old(d)=1, d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [\old(d)=0, d=0, x=4] [L18] CALL f1() VAL [\old(d)=0, d=0] [L8] d = 1.0 VAL [\old(d)=0, d=1] [L18] RET f1() VAL [\old(d)=0, d=1, x=4] [L20] d += (x == 2) [L22] d += (x > 3) VAL [\old(d)=0, x=4] [L24] COND TRUE !(d == 2.0) VAL [\old(d)=0, x=4] [L24] __VERIFIER_error() VAL [\old(d)=0, x=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 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=19occurred 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, 14 NumberOfCodeBlocks, 14 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 12:21:39,980 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:21:39,982 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:21:39,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:21:39,992 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:21:39,993 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:21:39,993 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:21:39,995 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:21:39,996 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:21:39,997 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:21:39,997 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:21:39,998 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:21:39,998 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:21:39,999 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:21:40,000 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:21:40,000 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:21:40,001 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:21:40,002 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:21:40,004 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:21:40,005 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:21:40,006 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:21:40,007 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:21:40,009 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:21:40,009 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:21:40,009 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:21:40,010 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:21:40,011 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:21:40,011 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:21:40,012 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:21:40,013 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:21:40,013 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:21:40,013 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:21:40,014 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:21:40,014 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:21:40,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:21:40,015 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:21:40,015 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 12:21:40,026 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:21:40,027 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:21:40,027 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:21:40,027 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:21:40,028 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:21:40,028 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:21:40,028 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 12:21:40,029 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:21:40,029 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:21:40,029 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:21:40,029 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:21:40,029 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:21:40,029 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:21:40,030 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:21:40,030 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 12:21:40,030 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 12:21:40,030 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:21:40,030 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:21:40,030 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:21:40,031 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:21:40,031 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:21:40,031 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:21:40,031 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:21:40,031 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:21:40,031 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:21:40,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:21:40,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:21:40,032 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:21:40,032 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 12:21:40,032 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:21:40,032 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 12:21:40,033 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 12:21:40,033 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_e7465dad-f13a-4957-be52-1ee6817b13dd/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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-11-23 12:21:40,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:21:40,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:21:40,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:21:40,080 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:21:40,080 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:21:40,081 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-23 12:21:40,127 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data/c90dde17f/ba6b7ca09a8247b0b947c056ee6335aa/FLAG0b3ae1f5d [2018-11-23 12:21:40,470 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:21:40,470 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/sv-benchmarks/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-23 12:21:40,474 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data/c90dde17f/ba6b7ca09a8247b0b947c056ee6335aa/FLAG0b3ae1f5d [2018-11-23 12:21:40,483 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/data/c90dde17f/ba6b7ca09a8247b0b947c056ee6335aa [2018-11-23 12:21:40,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:21:40,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:21:40,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:21:40,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:21:40,490 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:21:40,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e53d0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40, skipping insertion in model container [2018-11-23 12:21:40,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:21:40,510 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:21:40,621 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:21:40,626 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:21:40,636 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:21:40,645 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:21:40,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40 WrapperNode [2018-11-23 12:21:40,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:21:40,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:21:40,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:21:40,647 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:21:40,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:21:40,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:21:40,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:21:40,663 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:21:40,668 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... [2018-11-23 12:21:40,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:21:40,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:21:40,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:21:40,679 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:21:40,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/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 12:21:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 12:21:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 12:21:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:21:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:21:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 12:21:40,769 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 12:21:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-11-23 12:21:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-11-23 12:21:41,884 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:21:41,884 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 12:21:41,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:41 BoogieIcfgContainer [2018-11-23 12:21:41,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:21:41,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:21:41,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:21:41,887 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:21:41,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:21:40" (1/3) ... [2018-11-23 12:21:41,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419087d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:21:41, skipping insertion in model container [2018-11-23 12:21:41,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:21:40" (2/3) ... [2018-11-23 12:21:41,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@419087d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:21:41, skipping insertion in model container [2018-11-23 12:21:41,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:41" (3/3) ... [2018-11-23 12:21:41,891 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-11-23 12:21:41,900 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:21:41,905 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:21:41,915 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:21:41,937 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 12:21:41,938 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:21:41,938 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:21:41,938 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:21:41,938 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:21:41,938 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:21:41,938 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:21:41,938 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:21:41,938 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:21:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-23 12:21:41,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 12:21:41,955 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:21:41,955 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:21:41,957 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:21:41,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:21:41,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-11-23 12:21:41,963 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 12:21:41,963 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/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 12:21:41,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:21:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:21:42,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:21:42,210 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 12:21:42,210 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 12:21:42,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:21:42,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 12:21:42,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:21:42,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:21:42,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:21:42,233 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-11-23 12:21:44,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:21:44,314 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-11-23 12:21:44,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 12:21:44,316 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-23 12:21:44,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:21:44,322 INFO L225 Difference]: With dead ends: 30 [2018-11-23 12:21:44,322 INFO L226 Difference]: Without dead ends: 15 [2018-11-23 12:21:44,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:21:44,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-23 12:21:44,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-23 12:21:44,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 12:21:44,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-23 12:21:44,348 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2018-11-23 12:21:44,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:21:44,349 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-23 12:21:44,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:21:44,349 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-23 12:21:44,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-23 12:21:44,350 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:21:44,350 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 12:21:44,350 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:21:44,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:21:44,351 INFO L82 PathProgramCache]: Analyzing trace with hash 1845819503, now seen corresponding path program 1 times [2018-11-23 12:21:44,351 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 12:21:44,351 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-23 12:21:44,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:21:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:21:44,513 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 12:21:44,552 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 12:21:44,552 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 12:21:44,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:21:44,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 12:21:44,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:21:44,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:21:44,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:21:44,566 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2018-11-23 12:21:45,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:21:45,777 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-11-23 12:21:45,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:21:45,778 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-23 12:21:45,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:21:45,778 INFO L225 Difference]: With dead ends: 15 [2018-11-23 12:21:45,778 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:21:45,779 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:21:45,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:21:45,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:21:45,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:21:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:21:45,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-23 12:21:45,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:21:45,780 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:21:45,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:21:45,780 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:21:45,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:21:45,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 12:21:45,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:21:45,823 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:21:45,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:21:45,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 12:21:45,823 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 12:21:45,824 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 12:21:45,824 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 12:21:45,824 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 25) the Hoare annotation is: true [2018-11-23 12:21:45,824 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2018-11-23 12:21:45,824 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 25) no Hoare annotation was computed. [2018-11-23 12:21:45,824 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-23 12:21:45,824 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-23 12:21:45,824 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 11 25) no Hoare annotation was computed. [2018-11-23 12:21:45,825 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-23 12:21:45,825 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2018-11-23 12:21:45,825 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 15 16) the Hoare annotation is: (or (= (bvadd main_~x~0 (_ bv4294967292 32)) (_ bv0 32)) (= (bvadd main_~x~0 (_ bv4294967294 32)) (_ bv0 32))) [2018-11-23 12:21:45,825 INFO L448 ceAbstractionStarter]: For program point f1FINAL(lines 6 9) no Hoare annotation was computed. [2018-11-23 12:21:45,825 INFO L448 ceAbstractionStarter]: For program point f1EXIT(lines 6 9) no Hoare annotation was computed. [2018-11-23 12:21:45,825 INFO L451 ceAbstractionStarter]: At program point f1ENTRY(lines 6 9) the Hoare annotation is: true [2018-11-23 12:21:45,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:21:45 BoogieIcfgContainer [2018-11-23 12:21:45,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:21:45,829 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:21:45,829 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:21:45,829 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:21:45,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:21:41" (3/4) ... [2018-11-23 12:21:45,832 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:21:45,838 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 12:21:45,839 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 12:21:45,839 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2018-11-23 12:21:45,843 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 12:21:45,843 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 12:21:45,874 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e7465dad-f13a-4957-be52-1ee6817b13dd/bin-2019/uautomizer/witness.graphml [2018-11-23 12:21:45,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:21:45,875 INFO L168 Benchmark]: Toolchain (without parser) took 5388.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:45,876 INFO L168 Benchmark]: CDTParser took 0.17 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 12:21:45,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.69 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:45,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.81 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:45,877 INFO L168 Benchmark]: Boogie Preprocessor took 16.31 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:21:45,877 INFO L168 Benchmark]: RCFGBuilder took 1205.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -212.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:45,878 INFO L168 Benchmark]: TraceAbstraction took 3943.13 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: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. [2018-11-23 12:21:45,878 INFO L168 Benchmark]: Witness Printer took 45.80 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 12:21:45,880 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 158.69 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 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 15.81 ms. Allocated memory is still 1.0 GB. Free memory was 940.1 MB in the beginning and 934.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.31 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1205.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -212.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3943.13 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: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. * Witness Printer took 45.80 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: 24]: 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 4 procedures, 19 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 8 SDslu, 64 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 4 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...