./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/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_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/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_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/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_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/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-aa41828 [2018-11-23 07:19:10,600 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:19:10,601 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:19:10,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:19:10,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:19:10,614 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:19:10,615 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:19:10,616 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:19:10,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:19:10,618 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:19:10,619 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:19:10,619 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:19:10,620 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:19:10,621 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:19:10,622 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:19:10,623 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:19:10,624 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:19:10,625 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:19:10,627 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:19:10,628 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:19:10,629 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:19:10,630 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:19:10,632 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:19:10,632 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:19:10,633 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:19:10,634 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:19:10,634 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:19:10,635 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:19:10,636 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:19:10,637 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:19:10,637 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:19:10,638 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:19:10,638 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:19:10,638 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:19:10,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:19:10,640 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:19:10,640 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 07:19:10,653 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:19:10,653 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:19:10,654 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:19:10,654 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:19:10,654 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 07:19:10,654 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 07:19:10,655 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 07:19:10,655 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 07:19:10,655 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 07:19:10,655 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 07:19:10,655 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 07:19:10,655 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 07:19:10,656 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 07:19:10,656 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:19:10,656 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:19:10,657 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:19:10,657 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:19:10,657 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:19:10,657 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:19:10,657 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:19:10,657 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:19:10,658 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:19:10,658 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:19:10,658 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:19:10,658 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:19:10,658 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:19:10,659 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:19:10,659 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:19:10,659 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:19:10,659 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:19:10,659 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:19:10,659 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:19:10,660 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:19:10,660 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 07:19:10,660 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:19:10,660 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:19:10,660 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 07:19:10,660 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_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/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 [2018-11-23 07:19:10,691 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:19:10,703 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:19:10,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:19:10,708 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:19:10,708 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:19:10,709 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-23 07:19:10,756 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data/fe8738737/0fc9d1ff8b2d42968572377a6296cd3b/FLAGef0317f04 [2018-11-23 07:19:11,074 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:19:11,075 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-23 07:19:11,080 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data/fe8738737/0fc9d1ff8b2d42968572377a6296cd3b/FLAGef0317f04 [2018-11-23 07:19:11,487 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data/fe8738737/0fc9d1ff8b2d42968572377a6296cd3b [2018-11-23 07:19:11,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:19:11,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:19:11,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:19:11,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:19:11,496 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:19:11,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9b2349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11, skipping insertion in model container [2018-11-23 07:19:11,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:19:11,527 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:19:11,703 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:19:11,706 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:19:11,726 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:19:11,739 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:19:11,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11 WrapperNode [2018-11-23 07:19:11,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:19:11,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:19:11,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:19:11,741 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:19:11,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:19:11,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:19:11,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:19:11,756 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:19:11,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... [2018-11-23 07:19:11,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:19:11,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:19:11,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:19:11,772 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:19:11,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:19:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-11-23 07:19:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-11-23 07:19:11,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:19:11,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:19:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-11-23 07:19:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-11-23 07:19:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:19:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:19:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:19:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:19:11,866 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-11-23 07:19:11,866 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-11-23 07:19:11,989 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:19:11,990 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 07:19:11,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:11 BoogieIcfgContainer [2018-11-23 07:19:11,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:19:11,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:19:11,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:19:11,993 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:19:11,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:19:11" (1/3) ... [2018-11-23 07:19:11,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e7cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:19:11, skipping insertion in model container [2018-11-23 07:19:11,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:11" (2/3) ... [2018-11-23 07:19:11,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e7cb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:19:11, skipping insertion in model container [2018-11-23 07:19:11,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:11" (3/3) ... [2018-11-23 07:19:11,997 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-11-23 07:19:12,007 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:19:12,015 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 07:19:12,027 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 07:19:12,050 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:19:12,050 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:19:12,050 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:19:12,051 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:19:12,051 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:19:12,051 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:19:12,051 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:19:12,051 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:19:12,063 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-23 07:19:12,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 07:19:12,067 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:12,068 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:12,070 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:12,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:12,074 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-11-23 07:19:12,076 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 07:19:12,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:12,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:12,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:19:12,123 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 07:19:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:19:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 07:19:12,172 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #43#return; [?] CALL call #t~ret4 := main(); [?] ~f~1 := #t~nondet1;havoc #t~nondet1; VAL [main_~f~1=0.0] [?] CALL call bug(~f~1); VAL [|bug_#in~min|=0.0] [?] ~min := #in~min;assume 0 != (if ~someBinaryFLOATComparisonOperation(~min, 4.930380363757736E-32) then 1 else 0);~modifier~0 := ~someBinaryArithmeticDOUBLEoperation(1.1920928955078125E-7, ~convertINTToDOUBLE(2));~ulpdiff~0 := ~someBinaryArithmeticFLOAToperation(~min, ~modifier~0); VAL [bug_~min=0.0, |bug_#in~min|=0.0] [?] assume !~someBinaryFLOATComparisonOperation(~ulpdiff~0, 1.1754943508222875E-38); VAL [bug_~min=0.0, |bug_#in~min|=0.0] [?] assume !false; VAL [bug_~min=0.0, |bug_#in~min|=0.0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L37] ~f~1 := #t~nondet1; [L37] havoc #t~nondet1; VAL [~f~1=0.0] [L38] CALL call bug(~f~1); VAL [#in~min=0.0] [L5-L13] ~min := #in~min; [L6] assume 0 != (if ~someBinaryFLOATComparisonOperation(~min, 4.930380363757736E-32) then 1 else 0); [L7] ~modifier~0 := ~someBinaryArithmeticDOUBLEoperation(1.1920928955078125E-7, ~convertINTToDOUBLE(2)); [L8] ~ulpdiff~0 := ~someBinaryArithmeticFLOAToperation(~min, ~modifier~0); VAL [#in~min=0.0, ~min=0.0] [L10] assume !~someBinaryFLOATComparisonOperation(~ulpdiff~0, 1.1754943508222875E-38); VAL [#in~min=0.0, ~min=0.0] [L10] assert false; VAL [#in~min=0.0, ~min=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L37] ~f~1 := #t~nondet1; [L37] havoc #t~nondet1; VAL [~f~1=0.0] [L38] CALL call bug(~f~1); VAL [#in~min=0.0] [L5-L13] ~min := #in~min; [L6] assume 0 != (if ~someBinaryFLOATComparisonOperation(~min, 4.930380363757736E-32) then 1 else 0); [L7] ~modifier~0 := ~someBinaryArithmeticDOUBLEoperation(1.1920928955078125E-7, ~convertINTToDOUBLE(2)); [L8] ~ulpdiff~0 := ~someBinaryArithmeticFLOAToperation(~min, ~modifier~0); VAL [#in~min=0.0, ~min=0.0] [L10] assume !~someBinaryFLOATComparisonOperation(~ulpdiff~0, 1.1754943508222875E-38); VAL [#in~min=0.0, ~min=0.0] [L10] assert false; VAL [#in~min=0.0, ~min=0.0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L37] ~f~1 := #t~nondet1; [L37] havoc #t~nondet1; VAL [~f~1=0.0] [L38] CALL call bug(~f~1); VAL [#in~min=0.0] [L5-L13] ~min := #in~min; [L6] assume 0 != (if ~someBinaryFLOATComparisonOperation(~min, 4.930380363757736E-32) then 1 else 0); [L7] ~modifier~0 := ~someBinaryArithmeticDOUBLEoperation(1.1920928955078125E-7, ~convertINTToDOUBLE(2)); [L8] ~ulpdiff~0 := ~someBinaryArithmeticFLOAToperation(~min, ~modifier~0); VAL [#in~min=0.0, ~min=0.0] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~ulpdiff~0, 1.1754943508222875E-38) VAL [#in~min=0.0, ~min=0.0] [L10] assert false; VAL [#in~min=0.0, ~min=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L37] ~f~1 := #t~nondet1; [L37] havoc #t~nondet1; VAL [~f~1=0.0] [L38] CALL call bug(~f~1); VAL [#in~min=0.0] [L5-L13] ~min := #in~min; [L6] assume 0 != (if ~someBinaryFLOATComparisonOperation(~min, 4.930380363757736E-32) then 1 else 0); [L7] ~modifier~0 := ~someBinaryArithmeticDOUBLEoperation(1.1920928955078125E-7, ~convertINTToDOUBLE(2)); [L8] ~ulpdiff~0 := ~someBinaryArithmeticFLOAToperation(~min, ~modifier~0); VAL [#in~min=0.0, ~min=0.0] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~ulpdiff~0, 1.1754943508222875E-38) VAL [#in~min=0.0, ~min=0.0] [L10] assert false; VAL [#in~min=0.0, ~min=0.0] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L37] ~f~1 := #t~nondet1; [L37] havoc #t~nondet1; VAL [~f~1=0.0] [L38] CALL call bug(~f~1); VAL [#in~min=0.0] [L5-L13] ~min := #in~min; [L6] assume 0 != (if ~someBinaryFLOATComparisonOperation(~min, 4.930380363757736E-32) then 1 else 0); [L7] ~modifier~0 := ~someBinaryArithmeticDOUBLEoperation(1.1920928955078125E-7, ~convertINTToDOUBLE(2)); [L8] ~ulpdiff~0 := ~someBinaryArithmeticFLOAToperation(~min, ~modifier~0); VAL [#in~min=0.0, ~min=0.0] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~ulpdiff~0, 1.1754943508222875E-38) VAL [#in~min=0.0, ~min=0.0] [L10] assert false; VAL [#in~min=0.0, ~min=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret4 := main(); [L37] ~f~1 := #t~nondet1; [L37] havoc #t~nondet1; VAL [~f~1=0.0] [L38] CALL call bug(~f~1); VAL [#in~min=0.0] [L5-L13] ~min := #in~min; [L6] assume 0 != (if ~someBinaryFLOATComparisonOperation(~min, 4.930380363757736E-32) then 1 else 0); [L7] ~modifier~0 := ~someBinaryArithmeticDOUBLEoperation(1.1920928955078125E-7, ~convertINTToDOUBLE(2)); [L8] ~ulpdiff~0 := ~someBinaryArithmeticFLOAToperation(~min, ~modifier~0); VAL [#in~min=0.0, ~min=0.0] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~ulpdiff~0, 1.1754943508222875E-38) VAL [#in~min=0.0, ~min=0.0] [L10] assert false; VAL [#in~min=0.0, ~min=0.0] [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] ----- [2018-11-23 07:19:12,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:19:12 BoogieIcfgContainer [2018-11-23 07:19:12,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:19:12,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:19:12,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:19:12,198 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:19:12,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:11" (3/4) ... [2018-11-23 07:19:12,201 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 07:19:12,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:19:12,202 INFO L168 Benchmark]: Toolchain (without parser) took 711.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:19:12,203 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-23 07:19:12,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.52 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 944.6 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 07:19:12,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.59 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:19:12,205 INFO L168 Benchmark]: Boogie Preprocessor took 15.55 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 941.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:19:12,206 INFO L168 Benchmark]: RCFGBuilder took 218.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 07:19:12,206 INFO L168 Benchmark]: TraceAbstraction took 206.48 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-23 07:19:12,207 INFO L168 Benchmark]: Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:19:12,210 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 247.52 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 944.6 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 15.59 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.55 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 941.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 218.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 206.48 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of 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-aa41828 [2018-11-23 07:19:13,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:19:13,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:19:13,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:19:13,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:19:13,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:19:13,924 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:19:13,926 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:19:13,927 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:19:13,928 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:19:13,929 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:19:13,929 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:19:13,930 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:19:13,931 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:19:13,932 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:19:13,932 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:19:13,933 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:19:13,935 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:19:13,936 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:19:13,938 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:19:13,939 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:19:13,940 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:19:13,942 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:19:13,942 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:19:13,942 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:19:13,943 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:19:13,944 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:19:13,944 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:19:13,945 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:19:13,946 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:19:13,946 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:19:13,947 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:19:13,947 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:19:13,947 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:19:13,948 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:19:13,949 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:19:13,949 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 07:19:13,961 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:19:13,962 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:19:13,962 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:19:13,963 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:19:13,963 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 07:19:13,963 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 07:19:13,963 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 07:19:13,963 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 07:19:13,963 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 07:19:13,964 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 07:19:13,964 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:19:13,964 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:19:13,965 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:19:13,965 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:19:13,965 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:19:13,965 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:19:13,965 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:19:13,965 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 07:19:13,966 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 07:19:13,966 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:19:13,966 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:19:13,966 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:19:13,966 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:19:13,966 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:19:13,967 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:19:13,967 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:19:13,967 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:19:13,967 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:19:13,967 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:19:13,967 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:19:13,968 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:19:13,968 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 07:19:13,968 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:19:13,968 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 07:19:13,968 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 07:19:13,968 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_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/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 [2018-11-23 07:19:14,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:19:14,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:19:14,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:19:14,020 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:19:14,020 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:19:14,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-23 07:19:14,072 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data/2f7ece9dc/4a099f19f7eb4247803d818cff4799b5/FLAG06c6ab671 [2018-11-23 07:19:14,441 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:19:14,441 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-11-23 07:19:14,446 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data/2f7ece9dc/4a099f19f7eb4247803d818cff4799b5/FLAG06c6ab671 [2018-11-23 07:19:14,456 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/data/2f7ece9dc/4a099f19f7eb4247803d818cff4799b5 [2018-11-23 07:19:14,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:19:14,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:19:14,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:19:14,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:19:14,464 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:19:14,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fc8366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14, skipping insertion in model container [2018-11-23 07:19:14,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:19:14,495 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:19:14,655 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:19:14,658 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:19:14,680 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:19:14,695 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:19:14,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14 WrapperNode [2018-11-23 07:19:14,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:19:14,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:19:14,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:19:14,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:19:14,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:19:14,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:19:14,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:19:14,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:19:14,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... [2018-11-23 07:19:14,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:19:14,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:19:14,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:19:14,741 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:19:14,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:19:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-11-23 07:19:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-11-23 07:19:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:19:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:19:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-11-23 07:19:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-11-23 07:19:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:19:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:19:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:19:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:19:14,827 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-11-23 07:19:14,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-11-23 07:19:15,474 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:19:15,475 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 07:19:15,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:15 BoogieIcfgContainer [2018-11-23 07:19:15,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:19:15,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:19:15,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:19:15,477 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:19:15,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:19:14" (1/3) ... [2018-11-23 07:19:15,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531798db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:19:15, skipping insertion in model container [2018-11-23 07:19:15,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:19:14" (2/3) ... [2018-11-23 07:19:15,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@531798db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:19:15, skipping insertion in model container [2018-11-23 07:19:15,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:15" (3/3) ... [2018-11-23 07:19:15,479 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-11-23 07:19:15,487 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:19:15,493 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 07:19:15,503 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 07:19:15,524 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:19:15,524 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:19:15,524 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:19:15,524 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:19:15,524 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:19:15,524 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:19:15,525 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:19:15,525 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:19:15,525 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:19:15,537 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-23 07:19:15,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 07:19:15,540 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:15,541 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:15,542 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:15,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:15,546 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-11-23 07:19:15,548 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 07:19:15,549 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-23 07:19:15,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:15,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:19:15,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:15,830 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:19:15,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:19:15,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 07:19:15,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:19:15,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:19:15,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:19:15,853 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-11-23 07:19:15,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:15,885 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-11-23 07:19:15,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:19:15,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 07:19:15,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:15,894 INFO L225 Difference]: With dead ends: 56 [2018-11-23 07:19:15,894 INFO L226 Difference]: Without dead ends: 24 [2018-11-23 07:19:15,897 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:19:15,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-23 07:19:15,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-23 07:19:15,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 07:19:15,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-11-23 07:19:15,921 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 9 [2018-11-23 07:19:15,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:15,922 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-11-23 07:19:15,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:19:15,922 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-11-23 07:19:15,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 07:19:15,922 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:15,923 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:15,923 INFO L423 AbstractCegarLoop]: === Iteration 2 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:15,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:15,923 INFO L82 PathProgramCache]: Analyzing trace with hash -807154991, now seen corresponding path program 1 times [2018-11-23 07:19:15,924 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 07:19:15,924 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-23 07:19:15,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:16,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:19:19,280 WARN L180 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 19 [2018-11-23 07:19:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:19,833 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:19:19,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:19:19,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 07:19:19,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:19:19,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:19:19,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:19:19,846 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 3 states. [2018-11-23 07:19:20,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:20,531 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-23 07:19:20,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:19:20,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-23 07:19:20,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:20,556 INFO L225 Difference]: With dead ends: 24 [2018-11-23 07:19:20,556 INFO L226 Difference]: Without dead ends: 22 [2018-11-23 07:19:20,557 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:19:20,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-23 07:19:20,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-23 07:19:20,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-23 07:19:20,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-11-23 07:19:20,560 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 15 [2018-11-23 07:19:20,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:20,561 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-11-23 07:19:20,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:19:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-11-23 07:19:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 07:19:20,561 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:19:20,561 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:19:20,562 INFO L423 AbstractCegarLoop]: === Iteration 3 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:19:20,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:19:20,562 INFO L82 PathProgramCache]: Analyzing trace with hash -241350324, now seen corresponding path program 1 times [2018-11-23 07:19:20,562 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 07:19:20,562 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-23 07:19:20,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:19:20,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:19:20,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:19:20,998 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-23 07:19:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:19:21,034 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 07:19:21,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:19:21,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 07:19:21,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 07:19:21,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 07:19:21,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:19:21,046 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-11-23 07:19:21,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:19:21,048 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-11-23 07:19:21,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 07:19:21,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-11-23 07:19:21,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:19:21,048 INFO L225 Difference]: With dead ends: 22 [2018-11-23 07:19:21,048 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:19:21,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 07:19:21,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:19:21,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:19:21,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:19:21,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:19:21,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-23 07:19:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:19:21,049 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:19:21,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 07:19:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:19:21,050 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:19:21,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:19:21,085 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-11-23 07:19:21,085 INFO L448 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-11-23 07:19:21,085 INFO L448 ceAbstractionStarter]: For program point bugCastingEXIT(lines 26 34) no Hoare annotation was computed. [2018-11-23 07:19:21,085 INFO L448 ceAbstractionStarter]: For program point L31-3(lines 26 34) no Hoare annotation was computed. [2018-11-23 07:19:21,086 INFO L451 ceAbstractionStarter]: At program point bugCastingENTRY(lines 26 34) the Hoare annotation is: true [2018-11-23 07:19:21,086 INFO L448 ceAbstractionStarter]: For program point bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-11-23 07:19:21,086 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 07:19:21,086 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:19:21,086 INFO L451 ceAbstractionStarter]: At program point bugENTRY(lines 5 13) the Hoare annotation is: true [2018-11-23 07:19:21,086 INFO L448 ceAbstractionStarter]: For program point bugErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-23 07:19:21,086 INFO L448 ceAbstractionStarter]: For program point bugEXIT(lines 5 13) no Hoare annotation was computed. [2018-11-23 07:19:21,086 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-23 07:19:21,086 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-23 07:19:21,086 INFO L448 ceAbstractionStarter]: For program point L10-3(lines 5 13) no Hoare annotation was computed. [2018-11-23 07:19:21,087 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:19:21,087 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 07:19:21,087 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:19:21,087 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:19:21,087 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 36 47) the Hoare annotation is: true [2018-11-23 07:19:21,087 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 36 47) no Hoare annotation was computed. [2018-11-23 07:19:21,087 INFO L451 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: true [2018-11-23 07:19:21,087 INFO L448 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-11-23 07:19:21,087 INFO L451 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: true [2018-11-23 07:19:21,087 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 36 47) no Hoare annotation was computed. [2018-11-23 07:19:21,087 INFO L448 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-11-23 07:19:21,088 INFO L451 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: true [2018-11-23 07:19:21,088 INFO L448 ceAbstractionStarter]: For program point L38-1(line 38) no Hoare annotation was computed. [2018-11-23 07:19:21,088 INFO L448 ceAbstractionStarter]: For program point bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2018-11-23 07:19:21,088 INFO L448 ceAbstractionStarter]: For program point bugBrokenOutEXIT(lines 15 24) no Hoare annotation was computed. [2018-11-23 07:19:21,088 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-23 07:19:21,088 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-23 07:19:21,088 INFO L451 ceAbstractionStarter]: At program point bugBrokenOutENTRY(lines 15 24) the Hoare annotation is: true [2018-11-23 07:19:21,088 INFO L448 ceAbstractionStarter]: For program point L21-3(lines 15 24) no Hoare annotation was computed. [2018-11-23 07:19:21,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:19:21 BoogieIcfgContainer [2018-11-23 07:19:21,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:19:21,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:19:21,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:19:21,092 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:19:21,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:19:15" (3/4) ... [2018-11-23 07:19:21,094 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:19:21,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bugCasting [2018-11-23 07:19:21,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:19:21,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bug [2018-11-23 07:19:21,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:19:21,099 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bugBrokenOut [2018-11-23 07:19:21,102 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 07:19:21,102 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 07:19:21,103 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:19:21,129 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9e7aa01b-4197-4c6f-aa7d-d41b86136eed/bin-2019/utaipan/witness.graphml [2018-11-23 07:19:21,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:19:21,129 INFO L168 Benchmark]: Toolchain (without parser) took 6670.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -97.4 MB). Peak memory consumption was 33.7 MB. Max. memory is 11.5 GB. [2018-11-23 07:19:21,130 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:19:21,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.01 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. [2018-11-23 07:19:21,130 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.01 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. [2018-11-23 07:19:21,130 INFO L168 Benchmark]: Boogie Preprocessor took 22.45 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. [2018-11-23 07:19:21,131 INFO L168 Benchmark]: RCFGBuilder took 734.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:19:21,131 INFO L168 Benchmark]: TraceAbstraction took 5615.78 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: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:19:21,131 INFO L168 Benchmark]: Witness Printer took 37.44 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-23 07:19:21,133 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 236.01 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 21.01 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 22.45 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 734.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5615.78 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: 47.0 MB). Peak memory consumption was 47.0 MB. Max. memory is 11.5 GB. * Witness Printer took 37.44 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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, 5.5s 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, 3.4s 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, 0.4s SatisfiabilityAnalysisTime, 4.1s 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...