./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20_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_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ..................................................................................................................................................................................................................................................................................................................................................................................................... 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_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ........................................................................................................................................................................................................................................................................................................................................................................................... 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 21:44:43,755 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:44:43,756 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:44:43,767 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:44:43,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:44:43,769 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:44:43,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:44:43,772 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:44:43,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:44:43,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:44:43,774 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:44:43,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:44:43,775 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:44:43,777 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:44:43,778 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:44:43,779 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:44:43,780 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:44:43,782 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:44:43,784 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:44:43,785 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:44:43,786 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:44:43,787 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:44:43,790 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:44:43,790 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:44:43,790 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:44:43,791 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:44:43,792 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:44:43,793 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:44:43,794 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:44:43,795 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:44:43,795 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:44:43,795 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:44:43,796 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:44:43,796 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:44:43,798 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:44:43,798 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:44:43,799 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 21:44:43,811 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:44:43,812 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:44:43,813 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:44:43,813 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:44:43,813 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:44:43,813 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:44:43,813 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 21:44:43,814 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:44:43,814 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 21:44:43,814 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 21:44:43,814 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:44:43,815 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:44:43,815 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:44:43,815 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:44:43,815 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:44:43,815 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:44:43,816 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:44:43,816 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:44:43,816 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:44:43,818 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:44:43,818 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:44:43,818 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:44:43,818 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:44:43,818 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:44:43,819 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:44:43,819 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:44:43,819 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:44:43,819 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:44:43,819 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:44:43,819 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:44:43,820 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 21:44:43,820 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:44:43,820 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:44:43,822 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:44:43,822 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_dd07e38d-7783-4563-a0ec-d2d302b6e546/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-10-26 21:44:43,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:44:43,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:44:43,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:44:43,870 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:44:43,870 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:44:43,871 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-10-26 21:44:43,928 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data/15ec2c029/ffa26ae6cb06494e88e7237873142e64/FLAG9ecf82906 [2018-10-26 21:44:44,339 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:44:44,341 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-10-26 21:44:44,347 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data/15ec2c029/ffa26ae6cb06494e88e7237873142e64/FLAG9ecf82906 [2018-10-26 21:44:44,360 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data/15ec2c029/ffa26ae6cb06494e88e7237873142e64 [2018-10-26 21:44:44,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:44:44,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:44:44,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:44:44,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:44:44,370 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:44:44,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54412b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44, skipping insertion in model container [2018-10-26 21:44:44,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:44:44,406 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:44:44,561 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:44:44,563 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:44:44,594 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:44:44,609 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:44:44,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44 WrapperNode [2018-10-26 21:44:44,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:44:44,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:44:44,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:44:44,611 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:44:44,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,637 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:44:44,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:44:44,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:44:44,638 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:44:44,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... [2018-10-26 21:44:44,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:44:44,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:44:44,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:44:44,656 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:44:44,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/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 21:44:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-10-26 21:44:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-10-26 21:44:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:44:44,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:44:44,777 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-10-26 21:44:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-10-26 21:44:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:44:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:44:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:44:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:44:44,778 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-10-26 21:44:44,778 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-10-26 21:44:45,256 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:44:45,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:45 BoogieIcfgContainer [2018-10-26 21:44:45,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:44:45,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:44:45,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:44:45,262 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:44:45,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:44:44" (1/3) ... [2018-10-26 21:44:45,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b0c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:44:45, skipping insertion in model container [2018-10-26 21:44:45,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:44" (2/3) ... [2018-10-26 21:44:45,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b0c4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:44:45, skipping insertion in model container [2018-10-26 21:44:45,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:45" (3/3) ... [2018-10-26 21:44:45,268 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-10-26 21:44:45,278 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:44:45,289 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-10-26 21:44:45,313 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-10-26 21:44:45,348 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:44:45,348 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:44:45,348 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:44:45,348 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:44:45,348 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:44:45,349 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:44:45,350 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:44:45,350 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:44:45,369 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-10-26 21:44:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 21:44:45,376 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:44:45,377 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:44:45,379 INFO L424 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:44:45,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:44:45,386 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-10-26 21:44:45,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:44:45,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:44:45,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:44:45,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:44:45,443 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:44:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 21:44:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 21:44:45,505 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 21:44:45,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:44:45 BoogieIcfgContainer [2018-10-26 21:44:45,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:44:45,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:44:45,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:44:45,533 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:44:45,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:45" (3/4) ... [2018-10-26 21:44:45,539 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 21:44:45,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:44:45,540 INFO L168 Benchmark]: Toolchain (without parser) took 1176.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -167.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:45,542 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:45,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.92 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 942.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:45,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.74 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:45,545 INFO L168 Benchmark]: Boogie Preprocessor took 17.66 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:45,545 INFO L168 Benchmark]: RCFGBuilder took 600.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:45,547 INFO L168 Benchmark]: TraceAbstraction took 274.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:45,548 INFO L168 Benchmark]: Witness Printer took 6.39 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:45,551 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.92 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 942.4 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.74 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.66 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 600.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 942.4 MB in the beginning and 1.1 GB in the end (delta: -194.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 274.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.39 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L37] float f=__VERIFIER_nondet_float(); [L38] CALL bug(f) VAL [\old(min)=0] [L7] float modifier = (0x1.0p-23 * (1<<1)); [L8] float ulpdiff = min * modifier; VAL [\old(min)=0, min=0] [L10] COND TRUE !(ulpdiff == 0x1p-126f) VAL [\old(min)=0, min=0] [L10] __VERIFIER_error() VAL [\old(min)=0, min=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 3 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=33occurred 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 0.1.23-1dbac8b [2018-10-26 21:44:47,847 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:44:47,849 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:44:47,860 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:44:47,860 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:44:47,861 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:44:47,862 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:44:47,864 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:44:47,865 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:44:47,866 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:44:47,867 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:44:47,867 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:44:47,868 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:44:47,869 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:44:47,870 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:44:47,870 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:44:47,871 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:44:47,873 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:44:47,874 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:44:47,876 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:44:47,877 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:44:47,878 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:44:47,880 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:44:47,881 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:44:47,881 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:44:47,889 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:44:47,890 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:44:47,890 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:44:47,891 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:44:47,893 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:44:47,893 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:44:47,894 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:44:47,894 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:44:47,894 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:44:47,895 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:44:47,896 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:44:47,897 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 21:44:47,918 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:44:47,919 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:44:47,919 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:44:47,920 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:44:47,920 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:44:47,925 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:44:47,925 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:44:47,926 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:44:47,927 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:44:47,928 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:44:47,928 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:44:47,929 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:44:47,929 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:44:47,929 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:44:47,929 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:44:47,930 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 21:44:47,930 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 21:44:47,930 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:44:47,931 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:44:47,931 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:44:47,931 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:44:47,931 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:44:47,931 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:44:47,932 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:44:47,932 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:44:47,932 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:44:47,932 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:44:47,932 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:44:47,932 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 21:44:47,933 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:44:47,933 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 21:44:47,933 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 21:44:47,933 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_dd07e38d-7783-4563-a0ec-d2d302b6e546/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-10-26 21:44:47,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:44:48,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:44:48,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:44:48,005 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:44:48,005 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:44:48,006 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-10-26 21:44:48,060 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data/31af7182e/1eef267b320643559b3e041fab8fa0b9/FLAGcd5ebc4c9 [2018-10-26 21:44:48,436 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:44:48,437 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-10-26 21:44:48,444 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data/31af7182e/1eef267b320643559b3e041fab8fa0b9/FLAGcd5ebc4c9 [2018-10-26 21:44:48,459 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/data/31af7182e/1eef267b320643559b3e041fab8fa0b9 [2018-10-26 21:44:48,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:44:48,467 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:44:48,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:44:48,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:44:48,472 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:44:48,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a9cdcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48, skipping insertion in model container [2018-10-26 21:44:48,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:44:48,509 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:44:48,730 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:44:48,736 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:44:48,761 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:44:48,776 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:44:48,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48 WrapperNode [2018-10-26 21:44:48,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:44:48,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:44:48,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:44:48,778 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:44:48,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:44:48,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:44:48,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:44:48,803 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:44:48,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... [2018-10-26 21:44:48,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:44:48,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:44:48,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:44:48,831 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:44:48,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/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 21:44:48,967 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-10-26 21:44:48,967 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-10-26 21:44:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:44:48,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:44:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-10-26 21:44:48,968 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-10-26 21:44:48,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:44:48,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:44:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:44:48,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:44:48,969 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-10-26 21:44:48,969 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-10-26 21:44:50,149 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:44:50,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:50 BoogieIcfgContainer [2018-10-26 21:44:50,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:44:50,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:44:50,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:44:50,160 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:44:50,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:44:48" (1/3) ... [2018-10-26 21:44:50,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d197a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:44:50, skipping insertion in model container [2018-10-26 21:44:50,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:44:48" (2/3) ... [2018-10-26 21:44:50,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d197a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:44:50, skipping insertion in model container [2018-10-26 21:44:50,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:50" (3/3) ... [2018-10-26 21:44:50,163 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-10-26 21:44:50,171 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:44:50,178 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-10-26 21:44:50,193 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-10-26 21:44:50,222 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 21:44:50,223 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:44:50,223 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:44:50,223 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:44:50,223 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:44:50,224 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:44:50,224 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:44:50,225 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:44:50,225 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:44:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-10-26 21:44:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-26 21:44:50,251 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:44:50,252 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:44:50,255 INFO L424 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:44:50,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:44:50,261 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-10-26 21:44:50,266 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 21:44:50,267 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/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 21:44:50,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:44:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:50,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:44:50,743 WARN L179 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-26 21:44:50,770 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 21:44:50,771 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 21:44:50,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:44:50,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:44:50,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:44:50,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:44:50,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:44:50,804 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-10-26 21:44:50,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:44:50,858 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-10-26 21:44:50,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:44:50,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-10-26 21:44:50,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:44:50,874 INFO L225 Difference]: With dead ends: 56 [2018-10-26 21:44:50,874 INFO L226 Difference]: Without dead ends: 24 [2018-10-26 21:44:50,878 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:44:50,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-10-26 21:44:50,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-10-26 21:44:50,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-10-26 21:44:50,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-10-26 21:44:50,917 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 9 [2018-10-26 21:44:50,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:44:50,917 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-10-26 21:44:50,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:44:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-10-26 21:44:50,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 21:44:50,918 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:44:50,918 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:44:50,919 INFO L424 AbstractCegarLoop]: === Iteration 2 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:44:50,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:44:50,919 INFO L82 PathProgramCache]: Analyzing trace with hash -807154991, now seen corresponding path program 1 times [2018-10-26 21:44:50,920 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 21:44:50,920 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 21:44:50,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-26 21:44:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:51,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:44:53,876 WARN L179 SmtUtils]: Spent 894.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-26 21:44:54,516 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 21:44:54,517 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 21:44:54,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:44:54,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:44:54,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:44:54,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:44:54,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:44:54,532 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 3 states. [2018-10-26 21:44:55,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:44:55,170 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-10-26 21:44:55,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:44:55,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-10-26 21:44:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:44:55,200 INFO L225 Difference]: With dead ends: 24 [2018-10-26 21:44:55,200 INFO L226 Difference]: Without dead ends: 22 [2018-10-26 21:44:55,201 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:44:55,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-26 21:44:55,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-26 21:44:55,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-26 21:44:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-10-26 21:44:55,207 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 15 [2018-10-26 21:44:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:44:55,208 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-10-26 21:44:55,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:44:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-10-26 21:44:55,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 21:44:55,210 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:44:55,210 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:44:55,210 INFO L424 AbstractCegarLoop]: === Iteration 3 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:44:55,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:44:55,211 INFO L82 PathProgramCache]: Analyzing trace with hash -241350324, now seen corresponding path program 1 times [2018-10-26 21:44:55,216 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 21:44:55,216 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 21:44:55,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-26 21:44:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:44:55,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:44:55,804 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-26 21:44:55,849 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 21:44:55,849 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 21:44:55,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:44:55,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:44:55,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:44:55,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:44:55,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:44:55,869 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-10-26 21:44:55,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:44:55,872 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-10-26 21:44:55,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:44:55,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-10-26 21:44:55,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:44:55,876 INFO L225 Difference]: With dead ends: 22 [2018-10-26 21:44:55,876 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:44:55,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:44:55,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:44:55,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:44:55,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:44:55,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:44:55,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-10-26 21:44:55,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:44:55,878 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:44:55,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:44:55,878 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:44:55,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:44:55,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:44:55,973 INFO L425 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-10-26 21:44:55,974 INFO L425 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-10-26 21:44:55,974 INFO L425 ceAbstractionStarter]: For program point bugCastingEXIT(lines 26 34) no Hoare annotation was computed. [2018-10-26 21:44:55,974 INFO L425 ceAbstractionStarter]: For program point L31-3(lines 26 34) no Hoare annotation was computed. [2018-10-26 21:44:55,974 INFO L428 ceAbstractionStarter]: At program point bugCastingENTRY(lines 26 34) the Hoare annotation is: true [2018-10-26 21:44:55,974 INFO L425 ceAbstractionStarter]: For program point bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-10-26 21:44:55,974 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:44:55,975 INFO L428 ceAbstractionStarter]: At program point bugENTRY(lines 5 13) the Hoare annotation is: true [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point bugEXIT(lines 5 13) no Hoare annotation was computed. [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point bugErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point L10-3(lines 5 13) no Hoare annotation was computed. [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:44:55,975 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 21:44:55,975 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:44:55,975 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 36 47) the Hoare annotation is: true [2018-10-26 21:44:55,975 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 36 47) no Hoare annotation was computed. [2018-10-26 21:44:55,976 INFO L428 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: true [2018-10-26 21:44:55,976 INFO L425 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-10-26 21:44:55,976 INFO L428 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: true [2018-10-26 21:44:55,976 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 36 47) no Hoare annotation was computed. [2018-10-26 21:44:55,976 INFO L425 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-10-26 21:44:55,976 INFO L428 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: true [2018-10-26 21:44:55,976 INFO L425 ceAbstractionStarter]: For program point L38-1(line 38) no Hoare annotation was computed. [2018-10-26 21:44:55,976 INFO L425 ceAbstractionStarter]: For program point bugBrokenOutEXIT(lines 15 24) no Hoare annotation was computed. [2018-10-26 21:44:55,976 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-10-26 21:44:55,977 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-10-26 21:44:55,977 INFO L425 ceAbstractionStarter]: For program point bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2018-10-26 21:44:55,977 INFO L428 ceAbstractionStarter]: At program point bugBrokenOutENTRY(lines 15 24) the Hoare annotation is: true [2018-10-26 21:44:55,977 INFO L425 ceAbstractionStarter]: For program point L21-3(lines 15 24) no Hoare annotation was computed. [2018-10-26 21:44:55,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:44:55 BoogieIcfgContainer [2018-10-26 21:44:55,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:44:55,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:44:55,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:44:55,981 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:44:55,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:44:50" (3/4) ... [2018-10-26 21:44:55,985 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:44:55,992 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure bugCasting [2018-10-26 21:44:55,992 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:44:55,992 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure bug [2018-10-26 21:44:55,993 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:44:55,993 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure bugBrokenOut [2018-10-26 21:44:55,997 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-10-26 21:44:55,998 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-26 21:44:55,998 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-26 21:44:56,047 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_dd07e38d-7783-4563-a0ec-d2d302b6e546/bin-2019/utaipan/witness.graphml [2018-10-26 21:44:56,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:44:56,048 INFO L168 Benchmark]: Toolchain (without parser) took 7582.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -133.3 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:56,049 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:56,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.84 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:56,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.64 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:56,050 INFO L168 Benchmark]: Boogie Preprocessor took 27.97 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:44:56,051 INFO L168 Benchmark]: RCFGBuilder took 1318.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -202.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:56,051 INFO L168 Benchmark]: TraceAbstraction took 5829.90 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: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:56,052 INFO L168 Benchmark]: Witness Printer took 67.24 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:44:56,058 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 309.84 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 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 24.64 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.97 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1318.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -202.7 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5829.90 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: 46.8 MB). Peak memory consumption was 46.8 MB. Max. memory is 11.5 GB. * Witness Printer took 67.24 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 21]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 locations, 3 error locations. SAFE Result, 5.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 4 SDslu, 63 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 14 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 3 QuantifiedInterpolants, 1426 SizeOfPredicates, 9 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...