./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float13_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_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/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 0a5777cb7d0bbf0d840893f3aa39606f5237d830 ................................................................................................................................................................................................................................................ 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_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/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 0a5777cb7d0bbf0d840893f3aa39606f5237d830 ........................................................................................................................................................................................................................................................................................................................ 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 21:26:27,759 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:26:27,760 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:26:27,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:26:27,769 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:26:27,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:26:27,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:26:27,772 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:26:27,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:26:27,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:26:27,774 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:26:27,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:26:27,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:26:27,777 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:26:27,777 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:26:27,778 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:26:27,779 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:26:27,781 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:26:27,782 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:26:27,784 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:26:27,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:26:27,785 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:26:27,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:26:27,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:26:27,788 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:26:27,789 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:26:27,790 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:26:27,790 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:26:27,791 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:26:27,792 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:26:27,792 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:26:27,793 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:26:27,793 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:26:27,793 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:26:27,794 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:26:27,795 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:26:27,795 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 21:26:27,806 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:26:27,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:26:27,808 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:26:27,808 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:26:27,808 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:26:27,808 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:26:27,808 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 21:26:27,808 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:26:27,808 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 21:26:27,809 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 21:26:27,809 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:26:27,809 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:26:27,809 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:26:27,809 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:26:27,810 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:26:27,810 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:26:27,810 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:26:27,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:26:27,810 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:26:27,810 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:26:27,810 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:26:27,811 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:26:27,811 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:26:27,811 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:26:27,813 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:26:27,813 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:26:27,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:26:27,813 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:26:27,813 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:26:27,814 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:26:27,814 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 21:26:27,814 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:26:27,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:26:27,814 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:26:27,814 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_e144ff41-c230-497d-8609-f0ad6d065839/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 -> 0a5777cb7d0bbf0d840893f3aa39606f5237d830 [2018-10-26 21:26:27,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:26:27,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:26:27,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:26:27,853 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:26:27,853 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:26:27,854 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i [2018-10-26 21:26:27,895 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data/f2f8ddd49/0bc476b36aa24415a1c566e806f8ee3f/FLAG7c96275b0 [2018-10-26 21:26:28,260 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:26:28,260 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i [2018-10-26 21:26:28,266 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data/f2f8ddd49/0bc476b36aa24415a1c566e806f8ee3f/FLAG7c96275b0 [2018-10-26 21:26:28,275 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data/f2f8ddd49/0bc476b36aa24415a1c566e806f8ee3f [2018-10-26 21:26:28,278 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:26:28,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:26:28,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:26:28,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:26:28,283 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:26:28,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4eb8e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28, skipping insertion in model container [2018-10-26 21:26:28,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:26:28,312 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:26:28,421 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:26:28,426 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:26:28,440 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:26:28,452 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:26:28,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28 WrapperNode [2018-10-26 21:26:28,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:26:28,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:26:28,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:26:28,453 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:26:28,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,465 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:26:28,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:26:28,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:26:28,471 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:26:28,479 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... [2018-10-26 21:26:28,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:26:28,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:26:28,488 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:26:28,488 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:26:28,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/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 [2018-10-26 21:26:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:26:28,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:26:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:26:28,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:26:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:26:28,613 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:26:28,985 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:26:28,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:26:28 BoogieIcfgContainer [2018-10-26 21:26:28,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:26:28,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:26:28,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:26:28,989 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:26:28,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:26:28" (1/3) ... [2018-10-26 21:26:28,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd10ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:26:28, skipping insertion in model container [2018-10-26 21:26:28,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:28" (2/3) ... [2018-10-26 21:26:28,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd10ebb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:26:28, skipping insertion in model container [2018-10-26 21:26:28,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:26:28" (3/3) ... [2018-10-26 21:26:28,992 INFO L112 eAbstractionObserver]: Analyzing ICFG float13_true-unreach-call_true-termination.i [2018-10-26 21:26:28,999 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:26:29,006 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-26 21:26:29,019 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-26 21:26:29,045 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:26:29,045 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:26:29,045 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:26:29,045 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:26:29,045 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:26:29,045 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:26:29,045 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:26:29,045 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:26:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-10-26 21:26:29,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 21:26:29,065 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:26:29,065 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:26:29,067 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:26:29,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:26:29,072 INFO L82 PathProgramCache]: Analyzing trace with hash -1459462506, now seen corresponding path program 1 times [2018-10-26 21:26:29,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:26:29,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:26:29,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:26:29,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:26:29,114 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:26:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 21:26:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 21:26:29,165 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 21:26:29,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:26:29 BoogieIcfgContainer [2018-10-26 21:26:29,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:26:29,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:26:29,185 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:26:29,185 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:26:29,186 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:26:28" (3/4) ... [2018-10-26 21:26:29,189 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 21:26:29,189 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:26:29,190 INFO L168 Benchmark]: Toolchain (without parser) took 911.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:26:29,191 INFO L168 Benchmark]: CDTParser took 0.17 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 21:26:29,192 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.32 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 949.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:29,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.83 ms. Allocated memory is still 1.0 GB. Free memory is still 949.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:26:29,193 INFO L168 Benchmark]: Boogie Preprocessor took 17.10 ms. Allocated memory is still 1.0 GB. Free memory was 949.9 MB in the beginning and 947.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:29,193 INFO L168 Benchmark]: RCFGBuilder took 497.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.2 MB in the beginning and 1.1 GB in the end (delta: -193.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:29,194 INFO L168 Benchmark]: TraceAbstraction took 198.85 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:29,194 INFO L168 Benchmark]: Witness Printer took 4.01 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 21:26:29,197 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.32 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 949.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.83 ms. Allocated memory is still 1.0 GB. Free memory is still 949.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.10 ms. Allocated memory is still 1.0 GB. Free memory was 949.9 MB in the beginning and 947.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 497.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 947.2 MB in the beginning and 1.1 GB in the end (delta: -193.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 198.85 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.01 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: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 3. Possible FailurePath: [L3] const float plus_infinity = 1.0f/0.0f; [L4] const float minus_infinity = 0.0f/-0.0f; [L5] const float NaN = 0.0f * (1.0f/0.0f); VAL [\old(minus_infinity)=4, \old(NaN)=2, \old(plus_infinity)=3] [L9] _Bool temp; [L12] temp = NaN < plus_infinity VAL [temp=1] [L13] COND TRUE !(!temp) VAL [temp=1] [L13] __VERIFIER_error() VAL [temp=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 8 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=42occurred 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, 8 NumberOfCodeBlocks, 8 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 21:26:31,032 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:26:31,033 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:26:31,040 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:26:31,041 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:26:31,041 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:26:31,042 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:26:31,043 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:26:31,044 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:26:31,044 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:26:31,045 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:26:31,045 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:26:31,046 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:26:31,046 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:26:31,048 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:26:31,048 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:26:31,049 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:26:31,050 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:26:31,052 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:26:31,053 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:26:31,053 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:26:31,054 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:26:31,056 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:26:31,056 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:26:31,057 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:26:31,057 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:26:31,058 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:26:31,058 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:26:31,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:26:31,060 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:26:31,061 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:26:31,061 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:26:31,061 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:26:31,061 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:26:31,062 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:26:31,063 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:26:31,063 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 21:26:31,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:26:31,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:26:31,075 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:26:31,075 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:26:31,076 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:26:31,076 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:26:31,076 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:26:31,076 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:26:31,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:26:31,077 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:26:31,077 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:26:31,077 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:26:31,077 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:26:31,077 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:26:31,077 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:26:31,077 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 21:26:31,078 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 21:26:31,078 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:26:31,078 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:26:31,078 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:26:31,078 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:26:31,078 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:26:31,078 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:26:31,079 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:26:31,079 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:26:31,079 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:26:31,081 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:26:31,081 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:26:31,081 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 21:26:31,081 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:26:31,082 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 21:26:31,082 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 21:26:31,082 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_e144ff41-c230-497d-8609-f0ad6d065839/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 -> 0a5777cb7d0bbf0d840893f3aa39606f5237d830 [2018-10-26 21:26:31,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:26:31,128 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:26:31,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:26:31,132 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:26:31,133 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:26:31,133 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i [2018-10-26 21:26:31,172 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data/8e13c1da4/647be2c29e3e4522901a01dc206d90d7/FLAG06c1bf54c [2018-10-26 21:26:31,541 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:26:31,542 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/sv-benchmarks/c/floats-cbmc-regression/float13_true-unreach-call_true-termination.i [2018-10-26 21:26:31,546 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data/8e13c1da4/647be2c29e3e4522901a01dc206d90d7/FLAG06c1bf54c [2018-10-26 21:26:31,555 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/data/8e13c1da4/647be2c29e3e4522901a01dc206d90d7 [2018-10-26 21:26:31,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:26:31,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:26:31,560 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:26:31,560 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:26:31,564 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:26:31,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ae54847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31, skipping insertion in model container [2018-10-26 21:26:31,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:26:31,591 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:26:31,712 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:26:31,718 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:26:31,734 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:26:31,746 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:26:31,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31 WrapperNode [2018-10-26 21:26:31,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:26:31,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:26:31,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:26:31,748 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:26:31,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:26:31,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:26:31,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:26:31,766 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:26:31,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... [2018-10-26 21:26:31,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:26:31,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:26:31,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:26:31,785 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:26:31,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/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 [2018-10-26 21:26:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:26:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:26:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:26:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:26:31,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:26:31,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:26:32,292 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:26:32,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:26:32 BoogieIcfgContainer [2018-10-26 21:26:32,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:26:32,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:26:32,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:26:32,296 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:26:32,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:26:31" (1/3) ... [2018-10-26 21:26:32,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d83081f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:26:32, skipping insertion in model container [2018-10-26 21:26:32,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:26:31" (2/3) ... [2018-10-26 21:26:32,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d83081f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:26:32, skipping insertion in model container [2018-10-26 21:26:32,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:26:32" (3/3) ... [2018-10-26 21:26:32,298 INFO L112 eAbstractionObserver]: Analyzing ICFG float13_true-unreach-call_true-termination.i [2018-10-26 21:26:32,306 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:26:32,314 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-10-26 21:26:32,326 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-10-26 21:26:32,349 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:26:32,350 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:26:32,350 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:26:32,350 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:26:32,350 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:26:32,350 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:26:32,351 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:26:32,351 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:26:32,351 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:26:32,365 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-10-26 21:26:32,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-26 21:26:32,370 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:26:32,371 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:26:32,372 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:26:32,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:26:32,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1459462506, now seen corresponding path program 1 times [2018-10-26 21:26:32,379 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 21:26:32,380 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/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 [2018-10-26 21:26:32,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:26:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:26:32,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:26:32,507 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 21:26:32,508 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 21:26:32,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:26:32,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:26:32,518 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:26:32,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:26:32,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:26:32,529 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 4 states. [2018-10-26 21:26:32,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:26:32,662 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2018-10-26 21:26:32,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:26:32,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-10-26 21:26:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:26:32,670 INFO L225 Difference]: With dead ends: 61 [2018-10-26 21:26:32,670 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:26:32,673 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:26:32,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:26:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:26:32,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:26:32,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:26:32,691 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-10-26 21:26:32,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:26:32,691 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:26:32,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:26:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:26:32,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:26:32,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:26:32,781 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:26:32,781 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:26:32,781 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:26:32,782 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:26:32,782 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~NaN~0 (fp.mul RNE (_ +zero 8 24) (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)))) [2018-10-26 21:26:32,782 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:26:32,782 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:26:32,782 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-10-26 21:26:32,782 INFO L425 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-10-26 21:26:32,782 INFO L425 ceAbstractionStarter]: For program point L31-3(line 31) no Hoare annotation was computed. [2018-10-26 21:26:32,783 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 22) no Hoare annotation was computed. [2018-10-26 21:26:32,783 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 7 37) no Hoare annotation was computed. [2018-10-26 21:26:32,783 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-26 21:26:32,783 INFO L425 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-10-26 21:26:32,783 INFO L425 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 34) no Hoare annotation was computed. [2018-10-26 21:26:32,783 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-26 21:26:32,783 INFO L425 ceAbstractionStarter]: For program point L19-3(line 19) no Hoare annotation was computed. [2018-10-26 21:26:32,783 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point L28-3(line 28) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2018-10-26 21:26:32,784 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 7 37) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point L13-3(line 13) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point L34-1(line 34) no Hoare annotation was computed. [2018-10-26 21:26:32,785 INFO L425 ceAbstractionStarter]: For program point L34-3(line 34) no Hoare annotation was computed. [2018-10-26 21:26:32,786 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 7 37) the Hoare annotation is: true [2018-10-26 21:26:32,786 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2018-10-26 21:26:32,786 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-10-26 21:26:32,786 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-10-26 21:26:32,786 INFO L425 ceAbstractionStarter]: For program point L22-3(line 22) no Hoare annotation was computed. [2018-10-26 21:26:32,786 INFO L425 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 28) no Hoare annotation was computed. [2018-10-26 21:26:32,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:26:32 BoogieIcfgContainer [2018-10-26 21:26:32,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:26:32,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:26:32,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:26:32,791 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:26:32,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:26:32" (3/4) ... [2018-10-26 21:26:32,794 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:26:32,800 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:26:32,801 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:26:32,804 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-26 21:26:32,804 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 21:26:32,845 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e144ff41-c230-497d-8609-f0ad6d065839/bin-2019/utaipan/witness.graphml [2018-10-26 21:26:32,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:26:32,846 INFO L168 Benchmark]: Toolchain (without parser) took 1287.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -160.0 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:32,847 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:26:32,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:32,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.73 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:26:32,848 INFO L168 Benchmark]: Boogie Preprocessor took 18.86 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:32,849 INFO L168 Benchmark]: RCFGBuilder took 507.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -224.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:32,849 INFO L168 Benchmark]: TraceAbstraction took 496.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:32,850 INFO L168 Benchmark]: Witness Printer took 55.33 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-10-26 21:26:32,852 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.13 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.73 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.86 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 507.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 185.6 MB). Free memory was 937.1 MB in the beginning and 1.2 GB in the end (delta: -224.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 496.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. * Witness Printer took 55.33 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 19]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 25]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 34]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 28]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 8 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 22 SDslu, 8 SDs, 0 SdLazy, 16 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 14 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 343 SizeOfPredicates, 2 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...