./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/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 d83baf1cdb4ca03660244dae388672dd75d02b3f ................................................................................................................................................................................................................................. 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_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/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 d83baf1cdb4ca03660244dae388672dd75d02b3f .......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:51:42,087 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:42,088 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:42,096 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:42,096 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:42,096 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:42,097 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:42,098 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:42,100 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:42,100 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:42,101 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:42,101 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:42,102 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:42,103 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:42,103 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:42,104 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:42,105 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:42,106 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:42,108 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:42,109 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:42,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:42,111 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:42,112 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:42,112 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:42,113 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:42,113 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:42,114 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:42,114 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:42,115 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:42,116 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:42,116 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:42,116 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:42,117 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:42,117 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:42,117 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:42,118 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:42,118 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 15:51:42,127 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:42,127 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:42,128 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:51:42,128 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 15:51:42,128 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:51:42,129 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:51:42,129 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:51:42,129 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:42,129 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:42,129 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:51:42,129 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:42,129 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:42,130 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:51:42,130 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:51:42,130 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:51:42,130 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:42,130 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:42,130 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:42,130 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:51:42,131 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:42,131 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:42,131 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:51:42,131 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:51:42,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:42,131 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:42,131 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:51:42,131 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:51:42,132 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:51:42,132 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:51:42,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:51:42,132 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_0cf0cb33-6ed5-4e83-acad-0c8139940aab/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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-11-18 15:51:42,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:42,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:42,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:42,165 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:42,165 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:42,165 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-18 15:51:42,202 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data/7e28d74db/a2090dc940aa41d5a90766d9be9ad53e/FLAGfa1ae18cd [2018-11-18 15:51:42,585 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:42,586 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-18 15:51:42,589 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data/7e28d74db/a2090dc940aa41d5a90766d9be9ad53e/FLAGfa1ae18cd [2018-11-18 15:51:42,598 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data/7e28d74db/a2090dc940aa41d5a90766d9be9ad53e [2018-11-18 15:51:42,600 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:42,601 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:51:42,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:42,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:42,603 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:42,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d0df34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42, skipping insertion in model container [2018-11-18 15:51:42,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:42,623 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:42,716 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:42,719 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:42,731 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:42,739 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:42,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42 WrapperNode [2018-11-18 15:51:42,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:42,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:42,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:42,740 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:42,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (1/1) ... [2018-11-18 15:51:42,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:42,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:42,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:42,759 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:42,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:42,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:51:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:42,832 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:51:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:51:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:51:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:51:42,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:42,929 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:42,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:42 BoogieIcfgContainer [2018-11-18 15:51:42,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:42,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:51:42,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:51:42,933 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:51:42,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:51:42" (1/3) ... [2018-11-18 15:51:42,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42901b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:42, skipping insertion in model container [2018-11-18 15:51:42,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:42" (2/3) ... [2018-11-18 15:51:42,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42901b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:42, skipping insertion in model container [2018-11-18 15:51:42,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:42" (3/3) ... [2018-11-18 15:51:42,935 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-11-18 15:51:42,942 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:51:42,948 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-18 15:51:42,961 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-18 15:51:42,981 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:51:42,982 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:51:42,982 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:51:42,982 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:51:42,982 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:42,982 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:42,982 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:51:42,983 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:42,983 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:51:42,997 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-18 15:51:43,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:51:43,002 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:43,003 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:43,004 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:43,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:43,009 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2018-11-18 15:51:43,011 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:43,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:43,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:43,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:43,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:43,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:43,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:43,082 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 15:51:43,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:51:43 BoogieIcfgContainer [2018-11-18 15:51:43,095 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:51:43,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:51:43,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:51:43,096 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:51:43,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:42" (3/4) ... [2018-11-18 15:51:43,098 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 15:51:43,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:51:43,099 INFO L168 Benchmark]: Toolchain (without parser) took 498.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:43,100 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:43,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.97 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:43,101 INFO L168 Benchmark]: Boogie Preprocessor took 18.32 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:43,102 INFO L168 Benchmark]: RCFGBuilder took 170.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:43,102 INFO L168 Benchmark]: TraceAbstraction took 165.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:43,103 INFO L168 Benchmark]: Witness Printer took 3.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:43,104 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.97 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.32 ms. Allocated memory is still 1.0 GB. Free memory is still 947.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 170.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 165.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of to_real at line 6. Possible FailurePath: [L3] double x; [L4] int y; [L6] x=2 [L7] x-=0.6 [L8] y=x [L10] COND TRUE !(y==1) VAL [y=0] [L10] __VERIFIER_error() VAL [y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 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=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 15:51:44,607 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:44,609 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:44,617 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:44,617 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:44,617 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:44,618 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:44,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:44,620 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:44,621 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:44,621 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:44,622 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:44,622 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:44,623 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:44,624 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:44,624 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:44,625 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:44,626 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:44,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:44,628 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:44,629 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:44,629 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:44,631 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:44,631 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:44,631 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:44,632 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:44,633 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:44,633 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:44,634 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:44,634 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:44,634 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:44,635 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:44,635 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:44,635 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:44,636 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:44,636 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:44,636 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 15:51:44,646 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:44,646 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:44,647 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:51:44,647 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:51:44,647 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:51:44,648 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:51:44,648 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:51:44,648 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:44,648 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:51:44,648 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:51:44,648 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:44,648 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:51:44,648 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:51:44,649 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:51:44,649 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:51:44,649 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:51:44,649 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:51:44,649 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:44,649 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:44,649 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:51:44,649 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:44,650 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:44,650 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:51:44,650 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:51:44,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:44,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:44,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:51:44,650 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:51:44,650 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 15:51:44,651 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:51:44,651 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:51:44,651 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:51:44,651 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_0cf0cb33-6ed5-4e83-acad-0c8139940aab/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 -> d83baf1cdb4ca03660244dae388672dd75d02b3f [2018-11-18 15:51:44,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:44,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:44,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:44,693 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:44,693 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:44,694 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-18 15:51:44,739 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data/b38890e4f/2136ed6d204f447b80aaca3c23ee10a1/FLAGb4586d6b8 [2018-11-18 15:51:45,059 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:45,059 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/sv-benchmarks/c/floats-cbmc-regression/float1_true-unreach-call_true-termination.i [2018-11-18 15:51:45,063 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data/b38890e4f/2136ed6d204f447b80aaca3c23ee10a1/FLAGb4586d6b8 [2018-11-18 15:51:45,503 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/data/b38890e4f/2136ed6d204f447b80aaca3c23ee10a1 [2018-11-18 15:51:45,505 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:45,506 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:51:45,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:45,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:45,508 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:45,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363d8a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45, skipping insertion in model container [2018-11-18 15:51:45,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:45,527 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:45,632 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:45,636 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:45,645 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:45,654 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:45,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45 WrapperNode [2018-11-18 15:51:45,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:45,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:45,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:45,655 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:45,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (1/1) ... [2018-11-18 15:51:45,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:45,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:45,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:45,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:45,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:51:45,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:51:45,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:45,721 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:51:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:51:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:51:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:51:45,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:45,852 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:45,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:45 BoogieIcfgContainer [2018-11-18 15:51:45,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:45,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:51:45,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:51:45,855 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:51:45,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:51:45" (1/3) ... [2018-11-18 15:51:45,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d81706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:45, skipping insertion in model container [2018-11-18 15:51:45,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:45" (2/3) ... [2018-11-18 15:51:45,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d81706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:51:45, skipping insertion in model container [2018-11-18 15:51:45,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:45" (3/3) ... [2018-11-18 15:51:45,858 INFO L112 eAbstractionObserver]: Analyzing ICFG float1_true-unreach-call_true-termination.i [2018-11-18 15:51:45,864 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:51:45,869 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-18 15:51:45,877 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-18 15:51:45,895 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:51:45,895 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:51:45,895 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:51:45,896 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:51:45,896 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:45,896 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:45,896 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:51:45,896 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:45,896 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:51:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-18 15:51:45,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:51:45,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:51:45,912 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:51:45,913 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:51:45,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:45,917 INFO L82 PathProgramCache]: Analyzing trace with hash 703471866, now seen corresponding path program 1 times [2018-11-18 15:51:45,920 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:51:45,920 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 15:51:45,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:45,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:51:45,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:51:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:51:45,982 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:51:45,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:51:45,994 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:51:45,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:51:46,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:51:46,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:51:46,006 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2018-11-18 15:51:46,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:51:46,040 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2018-11-18 15:51:46,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:51:46,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 15:51:46,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:51:46,047 INFO L225 Difference]: With dead ends: 22 [2018-11-18 15:51:46,047 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:51:46,049 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:51:46,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:51:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:51:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:51:46,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:51:46,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-18 15:51:46,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:51:46,069 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:51:46,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:51:46,069 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:51:46,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:51:46,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:51:46,099 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 15:51:46,099 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:51:46,099 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:51:46,099 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:51:46,099 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:51:46,099 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:51:46,100 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 2 18) the Hoare annotation is: true [2018-11-18 15:51:46,100 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 2 18) no Hoare annotation was computed. [2018-11-18 15:51:46,100 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-18 15:51:46,100 INFO L425 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2018-11-18 15:51:46,100 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 2 18) no Hoare annotation was computed. [2018-11-18 15:51:46,100 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-18 15:51:46,100 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-18 15:51:46,100 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-11-18 15:51:46,101 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-18 15:51:46,101 INFO L425 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-11-18 15:51:46,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:51:46 BoogieIcfgContainer [2018-11-18 15:51:46,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:51:46,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:51:46,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:51:46,106 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:51:46,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:45" (3/4) ... [2018-11-18 15:51:46,109 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:51:46,114 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:51:46,115 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:51:46,118 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 15:51:46,118 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:51:46,118 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:51:46,145 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0cf0cb33-6ed5-4e83-acad-0c8139940aab/bin-2019/uautomizer/witness.graphml [2018-11-18 15:51:46,145 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:51:46,146 INFO L168 Benchmark]: Toolchain (without parser) took 640.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -114.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:46,147 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. [2018-11-18 15:51:46,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.15 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:46,148 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:46,148 INFO L168 Benchmark]: RCFGBuilder took 177.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:46,149 INFO L168 Benchmark]: TraceAbstraction took 249.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:46,149 INFO L168 Benchmark]: Witness Printer took 42.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:46,151 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 148.15 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 177.26 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 249.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Witness Printer took 42.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 2 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 2 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...