./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/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 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 .................................................................................................................................................................................................................................... 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_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/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 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:27:31,527 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:27:31,529 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:27:31,537 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:27:31,538 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:27:31,539 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:27:31,540 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:27:31,541 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:27:31,543 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:27:31,543 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:27:31,544 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:27:31,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:27:31,545 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:27:31,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:27:31,546 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:27:31,547 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:27:31,547 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:27:31,549 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:27:31,551 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:27:31,552 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:27:31,553 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:27:31,554 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:27:31,556 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:27:31,556 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:27:31,556 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:27:31,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:27:31,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:27:31,558 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:27:31,559 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:27:31,561 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:27:31,561 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:27:31,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:27:31,561 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:27:31,562 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:27:31,562 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:27:31,563 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:27:31,563 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-26 19:27:31,575 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:27:31,580 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:27:31,581 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:27:31,581 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:27:31,581 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:27:31,582 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:27:31,582 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:27:31,582 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:27:31,582 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:27:31,582 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:27:31,582 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:27:31,582 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:27:31,583 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:27:31,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:27:31,583 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:27:31,583 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:27:31,583 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:27:31,583 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:27:31,585 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:27:31,585 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:27:31,585 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:27:31,585 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:27:31,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:27:31,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:27:31,586 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:27:31,586 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:27:31,586 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 19:27:31,586 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:27:31,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:27:31,587 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_c097abf6-3c3c-422a-8ff1-c2d938e922e5/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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-10-26 19:27:31,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:27:31,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:27:31,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:27:31,631 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:27:31,631 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:27:31,632 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-10-26 19:27:31,686 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data/69d258c35/42f67a7bee8d488db873b9e054ec1ca9/FLAGc7ebd4e67 [2018-10-26 19:27:32,036 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:27:32,036 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-10-26 19:27:32,041 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data/69d258c35/42f67a7bee8d488db873b9e054ec1ca9/FLAGc7ebd4e67 [2018-10-26 19:27:32,054 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data/69d258c35/42f67a7bee8d488db873b9e054ec1ca9 [2018-10-26 19:27:32,058 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:27:32,060 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:27:32,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:27:32,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:27:32,063 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:27:32,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7154cad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32, skipping insertion in model container [2018-10-26 19:27:32,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:27:32,088 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:27:32,202 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:27:32,205 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:27:32,214 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:27:32,226 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:27:32,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32 WrapperNode [2018-10-26 19:27:32,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:27:32,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:27:32,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:27:32,227 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:27:32,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (1/1) ... [2018-10-26 19:27:32,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:27:32,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:27:32,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:27:32,249 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:27:32,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/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 [2018-10-26 19:27:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:27:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:27:32,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:27:32,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 19:27:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:27:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:27:32,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:27:32,555 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:27:32,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:27:32 BoogieIcfgContainer [2018-10-26 19:27:32,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:27:32,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:27:32,557 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:27:32,559 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:27:32,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:27:32" (1/3) ... [2018-10-26 19:27:32,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a14bdae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:27:32, skipping insertion in model container [2018-10-26 19:27:32,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:32" (2/3) ... [2018-10-26 19:27:32,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a14bdae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:27:32, skipping insertion in model container [2018-10-26 19:27:32,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:27:32" (3/3) ... [2018-10-26 19:27:32,563 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-10-26 19:27:32,571 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:27:32,577 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:27:32,590 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:27:32,614 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:27:32,615 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:27:32,615 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:27:32,615 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:27:32,615 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:27:32,615 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:27:32,615 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:27:32,615 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:27:32,616 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:27:32,630 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-10-26 19:27:32,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 19:27:32,634 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:27:32,635 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:27:32,640 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:27:32,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:27:32,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-10-26 19:27:32,646 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 19:27:32,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 19:27:32,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:27:32,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:27:32,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:27:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:27:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:27:32,732 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:27:32,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:27:32 BoogieIcfgContainer [2018-10-26 19:27:32,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:27:32,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:27:32,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:27:32,751 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:27:32,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:27:32" (3/4) ... [2018-10-26 19:27:32,756 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:27:32,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:27:32,757 INFO L168 Benchmark]: Toolchain (without parser) took 697.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 959.6 MB in the beginning and 1.2 GB in the end (delta: -198.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:27:32,758 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. [2018-10-26 19:27:32,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.25 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:27:32,760 INFO L168 Benchmark]: Boogie Preprocessor took 21.57 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:27:32,761 INFO L168 Benchmark]: RCFGBuilder took 307.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 948.9 MB in the beginning and 1.2 GB in the end (delta: -220.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:27:32,762 INFO L168 Benchmark]: TraceAbstraction took 193.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:27:32,762 INFO L168 Benchmark]: Witness Printer took 5.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:27:32,766 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 166.25 ms. Allocated memory is still 1.0 GB. Free memory was 959.6 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.57 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 307.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 948.9 MB in the beginning and 1.2 GB in the end (delta: -220.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 193.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 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 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) VAL [j=0] [L10] __VERIFIER_error() VAL [j=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 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=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:27:34,503 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:27:34,504 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:27:34,513 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:27:34,520 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:27:34,520 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:27:34,521 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:27:34,522 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:27:34,526 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:27:34,528 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:27:34,529 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:27:34,530 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:27:34,530 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:27:34,531 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:27:34,532 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:27:34,532 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:27:34,533 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:27:34,534 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:27:34,545 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:27:34,547 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:27:34,547 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:27:34,548 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:27:34,550 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:27:34,550 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:27:34,550 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:27:34,551 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:27:34,551 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:27:34,553 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:27:34,553 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:27:34,554 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:27:34,554 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:27:34,555 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:27:34,555 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:27:34,555 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:27:34,556 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:27:34,557 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:27:34,557 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-26 19:27:34,569 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:27:34,569 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:27:34,570 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:27:34,570 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 19:27:34,570 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 19:27:34,570 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 19:27:34,571 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 19:27:34,571 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:27:34,571 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:27:34,571 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:27:34,571 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:27:34,571 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:27:34,573 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:27:34,573 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:27:34,574 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:27:34,574 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:27:34,574 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:27:34,574 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:27:34,574 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:27:34,574 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:27:34,575 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:27:34,575 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:27:34,575 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:27:34,575 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:27:34,575 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:27:34,575 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:27:34,575 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:27:34,576 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-26 19:27:34,576 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:27:34,576 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:27:34,576 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:27:34,576 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_c097abf6-3c3c-422a-8ff1-c2d938e922e5/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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-10-26 19:27:34,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:27:34,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:27:34,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:27:34,633 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:27:34,633 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:27:34,634 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-10-26 19:27:34,671 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data/a34c90c99/7ffcf23159b84c078fd368e644aa789b/FLAG1f6ed89f8 [2018-10-26 19:27:35,046 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:27:35,046 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-10-26 19:27:35,050 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data/a34c90c99/7ffcf23159b84c078fd368e644aa789b/FLAG1f6ed89f8 [2018-10-26 19:27:35,062 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/data/a34c90c99/7ffcf23159b84c078fd368e644aa789b [2018-10-26 19:27:35,064 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:27:35,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 19:27:35,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:27:35,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:27:35,069 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:27:35,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f6f76a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35, skipping insertion in model container [2018-10-26 19:27:35,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:27:35,092 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:27:35,198 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:27:35,203 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:27:35,212 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:27:35,221 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:27:35,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35 WrapperNode [2018-10-26 19:27:35,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:27:35,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:27:35,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:27:35,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:27:35,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (1/1) ... [2018-10-26 19:27:35,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:27:35,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:27:35,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:27:35,242 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:27:35,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/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 [2018-10-26 19:27:35,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:27:35,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:27:35,283 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:27:35,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-26 19:27:35,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:27:35,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:27:35,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:27:35,445 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:27:35,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:27:35 BoogieIcfgContainer [2018-10-26 19:27:35,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:27:35,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:27:35,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:27:35,449 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:27:35,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:27:35" (1/3) ... [2018-10-26 19:27:35,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ffb29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:27:35, skipping insertion in model container [2018-10-26 19:27:35,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:27:35" (2/3) ... [2018-10-26 19:27:35,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56ffb29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:27:35, skipping insertion in model container [2018-10-26 19:27:35,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:27:35" (3/3) ... [2018-10-26 19:27:35,452 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-10-26 19:27:35,459 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:27:35,465 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:27:35,479 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:27:35,503 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:27:35,503 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:27:35,503 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:27:35,503 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:27:35,504 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:27:35,504 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:27:35,504 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:27:35,504 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:27:35,504 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:27:35,516 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-10-26 19:27:35,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-26 19:27:35,521 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:27:35,522 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:27:35,523 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:27:35,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:27:35,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-10-26 19:27:35,531 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:27:35,532 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 19:27:35,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 19:27:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:27:35,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:27:35,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:27:35,659 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:27:35,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:27:35,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 19:27:35,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 19:27:35,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 19:27:35,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 19:27:35,687 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-10-26 19:27:35,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:27:35,725 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-10-26 19:27:35,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 19:27:35,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-26 19:27:35,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:27:35,734 INFO L225 Difference]: With dead ends: 16 [2018-10-26 19:27:35,734 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 19:27:35,737 INFO L605 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 [2018-10-26 19:27:35,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 19:27:35,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 19:27:35,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 19:27:35,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 19:27:35,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-10-26 19:27:35,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:27:35,755 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 19:27:35,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 19:27:35,756 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 19:27:35,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 19:27:35,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 19:27:35,801 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 19:27:35,801 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:27:35,801 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:27:35,802 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 19:27:35,802 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:27:35,802 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:27:35,802 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 2 11) the Hoare annotation is: true [2018-10-26 19:27:35,802 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-10-26 19:27:35,802 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-10-26 19:27:35,802 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-10-26 19:27:35,803 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 2 11) no Hoare annotation was computed. [2018-10-26 19:27:35,803 INFO L425 ceAbstractionStarter]: For program point L10-3(lines 2 11) no Hoare annotation was computed. [2018-10-26 19:27:35,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:27:35 BoogieIcfgContainer [2018-10-26 19:27:35,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:27:35,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:27:35,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:27:35,807 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:27:35,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:27:35" (3/4) ... [2018-10-26 19:27:35,811 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 19:27:35,821 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 19:27:35,821 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 19:27:35,826 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 19:27:35,827 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 19:27:35,827 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 19:27:35,862 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c097abf6-3c3c-422a-8ff1-c2d938e922e5/bin-2019/uautomizer/witness.graphml [2018-10-26 19:27:35,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:27:35,863 INFO L168 Benchmark]: Toolchain (without parser) took 798.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:27:35,864 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-10-26 19:27:35,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.08 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:27:35,865 INFO L168 Benchmark]: Boogie Preprocessor took 19.62 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:27:35,865 INFO L168 Benchmark]: RCFGBuilder took 204.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-10-26 19:27:35,866 INFO L168 Benchmark]: TraceAbstraction took 359.99 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-10-26 19:27:35,866 INFO L168 Benchmark]: Witness Printer took 55.54 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. [2018-10-26 19:27:35,869 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.08 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.62 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 204.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 359.99 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 55.54 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: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 3 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...