./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_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_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af383046837f49b57572febe7198ecca5fffa750 .................................................................................................................................................................................................................................................. 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_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash af383046837f49b57572febe7198ecca5fffa750 ............................................................................................................................................................................................................................................................................................ 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 16:51:20,516 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:51:20,518 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:51:20,526 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:51:20,527 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:51:20,527 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:51:20,528 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:51:20,530 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:51:20,531 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:51:20,532 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:51:20,532 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:51:20,532 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:51:20,534 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:51:20,534 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:51:20,535 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:51:20,536 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:51:20,536 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:51:20,538 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:51:20,539 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:51:20,540 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:51:20,541 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:51:20,542 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:51:20,543 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:51:20,544 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:51:20,544 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:51:20,544 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:51:20,546 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:51:20,546 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:51:20,547 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:51:20,547 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:51:20,548 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:51:20,548 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:51:20,548 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:51:20,548 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:51:20,549 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:51:20,549 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:51:20,550 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:51:20,559 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:51:20,559 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:51:20,560 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:51:20,560 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:51:20,560 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:51:20,560 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:51:20,560 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:51:20,560 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:51:20,560 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:51:20,560 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:51:20,561 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:51:20,561 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:51:20,561 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:51:20,561 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:51:20,561 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:51:20,562 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:51:20,562 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:51:20,562 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:51:20,562 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:51:20,562 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:51:20,562 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:51:20,562 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:51:20,562 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:51:20,563 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:51:20,563 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:51:20,563 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:51:20,563 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:51:20,563 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:51:20,563 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:51:20,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:51:20,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:51:20,564 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:51:20,564 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:51:20,564 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:51:20,564 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:51:20,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:51:20,564 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:51:20,564 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan 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 -> Taipan 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 -> af383046837f49b57572febe7198ecca5fffa750 [2018-11-18 16:51:20,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:51:20,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:51:20,598 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:51:20,599 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:51:20,599 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:51:20,600 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-11-18 16:51:20,635 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data/f5c9293ca/43c60381742741129099c5d897e176e2/FLAG2e4759c3e [2018-11-18 16:51:21,042 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:51:21,043 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-11-18 16:51:21,047 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data/f5c9293ca/43c60381742741129099c5d897e176e2/FLAG2e4759c3e [2018-11-18 16:51:21,055 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data/f5c9293ca/43c60381742741129099c5d897e176e2 [2018-11-18 16:51:21,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:51:21,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:51:21,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:51:21,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:51:21,061 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:51:21,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170afedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21, skipping insertion in model container [2018-11-18 16:51:21,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:51:21,088 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:51:21,200 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:51:21,202 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:51:21,219 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:51:21,232 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:51:21,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21 WrapperNode [2018-11-18 16:51:21,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:51:21,233 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:51:21,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:51:21,233 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:51:21,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:51:21,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:51:21,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:51:21,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:51:21,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... [2018-11-18 16:51:21,298 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:51:21,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:51:21,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:51:21,299 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:51:21,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/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 16:51:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:51:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:51:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:51:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:51:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure f00 [2018-11-18 16:51:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure f00 [2018-11-18 16:51:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:51:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:51:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:51:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:51:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:51:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:51:21,451 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:51:21,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:21 BoogieIcfgContainer [2018-11-18 16:51:21,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:51:21,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:51:21,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:51:21,455 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:51:21,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:51:21" (1/3) ... [2018-11-18 16:51:21,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5325135f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:51:21, skipping insertion in model container [2018-11-18 16:51:21,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:21" (2/3) ... [2018-11-18 16:51:21,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5325135f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:51:21, skipping insertion in model container [2018-11-18 16:51:21,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:21" (3/3) ... [2018-11-18 16:51:21,459 INFO L112 eAbstractionObserver]: Analyzing ICFG float-zero-sum1_true-unreach-call_true-termination.i [2018-11-18 16:51:21,467 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:51:21,475 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:51:21,489 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:51:21,516 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:51:21,516 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:51:21,517 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:51:21,517 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:51:21,517 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:51:21,517 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:51:21,517 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:51:21,517 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:51:21,531 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-18 16:51:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 16:51:21,536 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:51:21,537 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:51:21,538 INFO L423 AbstractCegarLoop]: === Iteration 1 === [f00Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:51:21,543 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:21,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1301757984, now seen corresponding path program 1 times [2018-11-18 16:51:21,545 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:51:21,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:21,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:51:21,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:21,589 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:51:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:21,650 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:51:21,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:51:21 BoogieIcfgContainer [2018-11-18 16:51:21,672 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:51:21,673 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:51:21,673 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:51:21,673 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:51:21,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:21" (3/4) ... [2018-11-18 16:51:21,675 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:51:21,676 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:51:21,676 INFO L168 Benchmark]: Toolchain (without parser) took 618.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -132.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:51:21,677 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:51:21,678 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.75 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:51:21,678 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.25 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:51:21,679 INFO L168 Benchmark]: Boogie Preprocessor took 50.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:51:21,679 INFO L168 Benchmark]: RCFGBuilder took 153.11 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:51:21,680 INFO L168 Benchmark]: TraceAbstraction took 220.04 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:51:21,680 INFO L168 Benchmark]: Witness Printer took 2.98 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 16:51:21,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.75 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.25 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -184.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 153.11 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: 18.2 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 220.04 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: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.98 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 100. Possible FailurePath: [L111] CALL f00(-0x1.6b890ep+29, 0x1.6b890ep+29) VAL [\old(b)=762388928] [L100] float sum = a + b; [L101] FCALL union mix m; [L102] FCALL m.f = sum [L103] EXPR, FCALL m.i VAL [\old(a)=2147483651, \old(b)=762388928, a=2147483651, b=762388928, m={2147483652:0}, m.i=2147483648, sum=2147483650] [L103] COND TRUE !(m.i != 0x80000000) [L103] __VERIFIER_error() VAL [\old(a)=2147483651, \old(b)=762388928, a=2147483651, b=762388928, m={2147483652:0}, sum=2147483650] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 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=18occurred 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, 9 NumberOfCodeBlocks, 9 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 16:51:23,170 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:51:23,171 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:51:23,180 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:51:23,180 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:51:23,181 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:51:23,182 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:51:23,183 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:51:23,184 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:51:23,185 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:51:23,185 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:51:23,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:51:23,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:51:23,187 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:51:23,187 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:51:23,188 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:51:23,188 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:51:23,190 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:51:23,191 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:51:23,192 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:51:23,193 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:51:23,193 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:51:23,195 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:51:23,195 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:51:23,195 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:51:23,196 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:51:23,197 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:51:23,197 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:51:23,198 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:51:23,199 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:51:23,199 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:51:23,199 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:51:23,199 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:51:23,199 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:51:23,200 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:51:23,200 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:51:23,201 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:51:23,211 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:51:23,211 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:51:23,212 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:51:23,212 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:51:23,212 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:51:23,212 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:51:23,212 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:51:23,212 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:51:23,212 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:51:23,213 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:51:23,213 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:51:23,213 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:51:23,213 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:51:23,213 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:51:23,214 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:51:23,214 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:51:23,214 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:51:23,214 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:51:23,214 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:51:23,214 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:51:23,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:51:23,214 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:51:23,215 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:51:23,215 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:51:23,215 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:51:23,215 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:51:23,215 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:51:23,215 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:51:23,215 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:51:23,215 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:51:23,216 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:51:23,216 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:51:23,216 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:51:23,216 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:51:23,216 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:51:23,216 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_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan 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 -> Taipan 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 -> af383046837f49b57572febe7198ecca5fffa750 [2018-11-18 16:51:23,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:51:23,254 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:51:23,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:51:23,258 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:51:23,259 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:51:23,259 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-11-18 16:51:23,307 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data/9e526121c/85d1aa16dd1448c88924538fa5901d4a/FLAGa34dcf942 [2018-11-18 16:51:23,631 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:51:23,632 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-11-18 16:51:23,636 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data/9e526121c/85d1aa16dd1448c88924538fa5901d4a/FLAGa34dcf942 [2018-11-18 16:51:24,063 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/data/9e526121c/85d1aa16dd1448c88924538fa5901d4a [2018-11-18 16:51:24,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:51:24,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:51:24,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:51:24,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:51:24,070 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:51:24,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15007527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24, skipping insertion in model container [2018-11-18 16:51:24,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:51:24,097 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:51:24,234 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:51:24,237 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:51:24,251 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:51:24,268 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:51:24,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24 WrapperNode [2018-11-18 16:51:24,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:51:24,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:51:24,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:51:24,270 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:51:24,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:51:24,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:51:24,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:51:24,286 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:51:24,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... [2018-11-18 16:51:24,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:51:24,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:51:24,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:51:24,304 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:51:24,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/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 16:51:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:51:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:51:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:51:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:51:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure f00 [2018-11-18 16:51:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure f00 [2018-11-18 16:51:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:51:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:51:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 16:51:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:51:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:51:24,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:51:24,500 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:51:24,519 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:51:24,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:24 BoogieIcfgContainer [2018-11-18 16:51:24,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:51:24,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:51:24,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:51:24,522 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:51:24,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:51:24" (1/3) ... [2018-11-18 16:51:24,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730d9d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:51:24, skipping insertion in model container [2018-11-18 16:51:24,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:24" (2/3) ... [2018-11-18 16:51:24,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@730d9d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:51:24, skipping insertion in model container [2018-11-18 16:51:24,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:24" (3/3) ... [2018-11-18 16:51:24,525 INFO L112 eAbstractionObserver]: Analyzing ICFG float-zero-sum1_true-unreach-call_true-termination.i [2018-11-18 16:51:24,530 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:51:24,535 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:51:24,546 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:51:24,570 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:51:24,570 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:51:24,571 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:51:24,571 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:51:24,571 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:51:24,571 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:51:24,571 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:51:24,571 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:51:24,571 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:51:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-18 16:51:24,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 16:51:24,585 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:51:24,586 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:51:24,587 INFO L423 AbstractCegarLoop]: === Iteration 1 === [f00Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:51:24,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:24,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1301757984, now seen corresponding path program 1 times [2018-11-18 16:51:24,594 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:51:24,594 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/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 16:51:24,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:51:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:51:24,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:51:24,725 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 16:51:24,725 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:51:24,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:51:24,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:51:24,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 16:51:24,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 16:51:24,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:51:24,746 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-11-18 16:51:24,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:51:24,807 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-11-18 16:51:24,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 16:51:24,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-11-18 16:51:24,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:51:24,813 INFO L225 Difference]: With dead ends: 26 [2018-11-18 16:51:24,813 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:51:24,816 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:51:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:51:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:51:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:51:24,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:51:24,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-18 16:51:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:51:24,838 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:51:24,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 16:51:24,838 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:51:24,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:51:24,842 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:51:24,874 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:51:24,874 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:51:24,874 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:51:24,874 INFO L425 ceAbstractionStarter]: For program point f00Err0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-11-18 16:51:24,874 INFO L425 ceAbstractionStarter]: For program point f00EXIT(lines 99 106) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point f00FINAL(lines 99 106) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point L103-1(line 103) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L428 ceAbstractionStarter]: At program point f00ENTRY(lines 99 106) the Hoare annotation is: true [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point L103-3(line 103) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:51:24,875 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point L111(line 111) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 108 113) the Hoare annotation is: true [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 108 113) no Hoare annotation was computed. [2018-11-18 16:51:24,875 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 108 113) no Hoare annotation was computed. [2018-11-18 16:51:24,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:51:24 BoogieIcfgContainer [2018-11-18 16:51:24,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:51:24,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:51:24,878 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:51:24,878 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:51:24,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:24" (3/4) ... [2018-11-18 16:51:24,880 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:51:24,884 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:51:24,884 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure f00 [2018-11-18 16:51:24,884 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:51:24,887 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 16:51:24,887 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 16:51:24,888 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:51:24,912 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f62fede8-2d21-4998-8f71-625faa374e51/bin-2019/utaipan/witness.graphml [2018-11-18 16:51:24,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:51:24,913 INFO L168 Benchmark]: Toolchain (without parser) took 846.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 126.6 kB. Max. memory is 11.5 GB. [2018-11-18 16:51:24,914 INFO L168 Benchmark]: CDTParser took 0.16 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 16:51:24,914 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.37 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:51:24,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.60 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:51:24,915 INFO L168 Benchmark]: Boogie Preprocessor took 17.39 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:51:24,915 INFO L168 Benchmark]: RCFGBuilder took 216.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:51:24,916 INFO L168 Benchmark]: TraceAbstraction took 356.86 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:51:24,916 INFO L168 Benchmark]: Witness Printer took 34.67 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 16:51:24,918 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 202.37 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.60 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.39 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 216.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 356.86 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: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Witness Printer took 34.67 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: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 3 SDslu, 21 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 5 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 344 SizeOfPredicates, 8 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 9 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...