./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/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 bbea5fc7c8725f5cbc8325b1d09f091d3964966d ....................................................................................................................................................................................................................................................................................................................................... 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_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/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 bbea5fc7c8725f5cbc8325b1d09f091d3964966d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:32:56,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:32:56,630 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:32:56,638 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:32:56,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:32:56,638 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:32:56,639 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:32:56,640 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:32:56,641 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:32:56,642 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:32:56,643 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:32:56,643 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:32:56,643 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:32:56,644 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:32:56,645 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:32:56,645 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:32:56,646 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:32:56,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:32:56,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:32:56,649 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:32:56,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:32:56,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:32:56,652 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:32:56,653 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:32:56,653 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:32:56,654 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:32:56,654 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:32:56,655 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:32:56,655 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:32:56,656 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:32:56,656 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:32:56,657 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:32:56,657 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:32:56,657 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:32:56,658 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:32:56,658 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:32:56,658 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:32:56,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:32:56,668 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:32:56,669 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:32:56,669 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:32:56,669 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:32:56,669 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:32:56,669 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:32:56,669 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:32:56,670 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:32:56,670 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:32:56,670 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:32:56,670 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:32:56,670 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:32:56,670 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:32:56,670 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:32:56,671 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:32:56,671 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:32:56,671 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:32:56,671 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:32:56,671 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:32:56,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:32:56,671 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:32:56,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:32:56,672 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:32:56,672 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:32:56,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:32:56,672 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:32:56,672 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:32:56,672 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:32:56,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:32:56,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:32:56,672 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:32:56,673 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:32:56,673 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:32:56,673 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:32:56,673 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:32:56,673 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:32:56,673 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_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/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 -> bbea5fc7c8725f5cbc8325b1d09f091d3964966d [2018-11-18 12:32:56,694 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:32:56,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:32:56,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:32:56,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:32:56,705 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:32:56,706 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c [2018-11-18 12:32:56,746 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data/47d8809b3/e79a2ba7a8f64defa2b92921315495cc/FLAGc0f06f924 [2018-11-18 12:32:57,183 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:32:57,184 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c [2018-11-18 12:32:57,190 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data/47d8809b3/e79a2ba7a8f64defa2b92921315495cc/FLAGc0f06f924 [2018-11-18 12:32:57,201 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data/47d8809b3/e79a2ba7a8f64defa2b92921315495cc [2018-11-18 12:32:57,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:32:57,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:32:57,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:32:57,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:32:57,208 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:32:57,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ba9867b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57, skipping insertion in model container [2018-11-18 12:32:57,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:32:57,238 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:32:57,376 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:32:57,378 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:32:57,399 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:32:57,416 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:32:57,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57 WrapperNode [2018-11-18 12:32:57,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:32:57,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:32:57,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:32:57,417 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:32:57,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:32:57,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:32:57,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:32:57,477 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:32:57,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... [2018-11-18 12:32:57,504 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:32:57,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:32:57,505 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:32:57,505 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:32:57,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:32:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 12:32:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 12:32:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-18 12:32:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-18 12:32:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:32:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:32:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:32:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:32:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:32:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:32:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:32:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:32:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:32:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:32:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:32:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:32:57,785 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:32:57,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:32:57 BoogieIcfgContainer [2018-11-18 12:32:57,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:32:57,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:32:57,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:32:57,788 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:32:57,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:32:57" (1/3) ... [2018-11-18 12:32:57,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293568a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:32:57, skipping insertion in model container [2018-11-18 12:32:57,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:32:57" (2/3) ... [2018-11-18 12:32:57,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293568a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:32:57, skipping insertion in model container [2018-11-18 12:32:57,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:32:57" (3/3) ... [2018-11-18 12:32:57,790 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d_true-unreach-call.c [2018-11-18 12:32:57,796 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:32:57,801 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:32:57,814 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:32:57,833 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:32:57,833 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:32:57,833 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:32:57,833 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:32:57,833 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:32:57,833 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:32:57,833 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:32:57,833 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:32:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-18 12:32:57,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:32:57,848 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:32:57,848 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, 1, 1, 1, 1] [2018-11-18 12:32:57,850 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:32:57,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:32:57,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1643575351, now seen corresponding path program 1 times [2018-11-18 12:32:57,856 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:32:57,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:32:57,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:32:57,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:32:57,885 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:32:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:32:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:32:57,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:32:57,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:32:57,951 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:32:57,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:32:57,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:32:57,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:32:57,963 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-11-18 12:32:57,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:32:57,980 INFO L93 Difference]: Finished difference Result 92 states and 135 transitions. [2018-11-18 12:32:57,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:32:57,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-18 12:32:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:32:57,987 INFO L225 Difference]: With dead ends: 92 [2018-11-18 12:32:57,987 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 12:32:57,989 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:32:57,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 12:32:58,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-18 12:32:58,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-18 12:32:58,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2018-11-18 12:32:58,013 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 25 [2018-11-18 12:32:58,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:32:58,013 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2018-11-18 12:32:58,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:32:58,013 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-11-18 12:32:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 12:32:58,014 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:32:58,014 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, 1, 1, 1, 1, 1, 1] [2018-11-18 12:32:58,014 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:32:58,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:32:58,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1007022119, now seen corresponding path program 1 times [2018-11-18 12:32:58,015 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:32:58,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:32:58,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:32:58,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:32:58,016 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:32:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:32:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:32:58,116 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:32:58,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:32:58 BoogieIcfgContainer [2018-11-18 12:32:58,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:32:58,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:32:58,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:32:58,136 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:32:58,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:32:57" (3/4) ... [2018-11-18 12:32:58,139 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:32:58,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:32:58,140 INFO L168 Benchmark]: Toolchain (without parser) took 935.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -106.2 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:32:58,141 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:32:58,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.30 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:32:58,141 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:32:58,142 INFO L168 Benchmark]: Boogie Preprocessor took 27.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:32:58,142 INFO L168 Benchmark]: RCFGBuilder took 280.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:32:58,143 INFO L168 Benchmark]: TraceAbstraction took 350.07 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:32:58,143 INFO L168 Benchmark]: Witness Printer took 3.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:32:58,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.30 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 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 59.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.34 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. * RCFGBuilder took 280.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 350.07 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 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: 108]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 38, overapproximation of bitwiseOr at line 90, overapproximation of someBinaryArithmeticDOUBLEoperation at line 103, overapproximation of bitwiseAnd at line 89. Possible FailurePath: [L14] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = -1.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418246] [L20] FCALL ieee_double_shape_type ew_u; [L21] FCALL ew_u.value = (x) [L22] EXPR, FCALL ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR, FCALL ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L24] COND FALSE !(0) VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, x=10737418246] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, x=10737418246] [L26] COND TRUE j0 < 20 VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=0, x=10737418246] [L27] COND FALSE !(j0 < 0) [L38] i = (0x000fffff) >> j0 VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=0, x=10737418246] [L39] COND TRUE ((i0 & i) | i1) == 0 [L40] RET return x; VAL [\old(x)=10737418246, \result=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=0, x=10737418246] [L104] EXPR ceil_double(x) VAL [ceil_double(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418246] [L104] double res = ceil_double(x); [L107] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L82] __int32_t hx, lx; VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418246] [L84] FCALL ieee_double_shape_type ew_u; [L85] FCALL ew_u.value = (x) [L86] EXPR, FCALL ew_u.parts.msw [L86] (hx) = ew_u.parts.msw [L87] EXPR, FCALL ew_u.parts.lsw [L87] (lx) = ew_u.parts.lsw [L88] COND FALSE !(0) VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418246] [L89] hx &= 0x7fffffff [L90] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L91] hx = 0x7ff00000 - hx [L92] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418246, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, lx=2147483647, x=10737418246] [L107] EXPR isinf_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=10737418246, x=10737418246] [L107] COND TRUE !isinf_double(res) [L108] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418246, x=10737418246] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 12:32:59,540 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:32:59,542 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:32:59,550 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:32:59,550 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:32:59,551 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:32:59,552 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:32:59,553 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:32:59,554 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:32:59,555 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:32:59,555 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:32:59,556 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:32:59,556 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:32:59,557 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:32:59,558 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:32:59,558 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:32:59,559 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:32:59,560 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:32:59,561 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:32:59,562 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:32:59,563 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:32:59,564 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:32:59,566 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:32:59,566 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:32:59,566 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:32:59,567 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:32:59,568 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:32:59,568 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:32:59,569 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:32:59,569 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:32:59,570 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:32:59,570 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:32:59,570 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:32:59,570 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:32:59,571 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:32:59,571 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:32:59,571 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:32:59,582 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:32:59,582 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:32:59,583 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:32:59,583 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:32:59,583 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:32:59,583 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:32:59,583 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:32:59,583 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:32:59,583 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:32:59,584 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:32:59,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:32:59,584 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:32:59,584 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:32:59,585 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:32:59,585 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:32:59,585 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:32:59,585 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:32:59,585 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:32:59,585 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:32:59,585 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:32:59,585 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:32:59,586 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:32:59,586 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:32:59,586 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:32:59,586 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:32:59,586 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:32:59,586 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:32:59,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:32:59,587 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:32:59,587 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:32:59,587 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:32:59,587 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:32:59,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:32:59,587 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:32:59,587 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:32:59,587 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/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 -> bbea5fc7c8725f5cbc8325b1d09f091d3964966d [2018-11-18 12:32:59,618 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:32:59,627 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:32:59,630 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:32:59,631 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:32:59,631 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:32:59,632 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c [2018-11-18 12:32:59,677 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data/e63f4ab0d/150d00f255c040fea02a4f9eef6c2d54/FLAG732a5be40 [2018-11-18 12:32:59,999 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:33:00,000 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c [2018-11-18 12:33:00,004 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data/e63f4ab0d/150d00f255c040fea02a4f9eef6c2d54/FLAG732a5be40 [2018-11-18 12:33:00,014 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/data/e63f4ab0d/150d00f255c040fea02a4f9eef6c2d54 [2018-11-18 12:33:00,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:33:00,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:33:00,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:33:00,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:33:00,019 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:33:00,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd0158d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00, skipping insertion in model container [2018-11-18 12:33:00,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:33:00,049 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:33:00,200 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:33:00,205 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:33:00,231 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:33:00,253 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:33:00,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00 WrapperNode [2018-11-18 12:33:00,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:33:00,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:33:00,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:33:00,254 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:33:00,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,270 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:33:00,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:33:00,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:33:00,277 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:33:00,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... [2018-11-18 12:33:00,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:33:00,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:33:00,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:33:00,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:33:00,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:33:00,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 12:33:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 12:33:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 12:33:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 12:33:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-18 12:33:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-18 12:33:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:33:00,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:33:00,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:33:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:33:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:33:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:33:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:33:00,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:33:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:33:00,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:33:00,517 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:33:00,805 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:33:01,378 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:33:01,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:33:01 BoogieIcfgContainer [2018-11-18 12:33:01,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:33:01,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:33:01,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:33:01,381 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:33:01,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:33:00" (1/3) ... [2018-11-18 12:33:01,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba873b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:33:01, skipping insertion in model container [2018-11-18 12:33:01,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:33:00" (2/3) ... [2018-11-18 12:33:01,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba873b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:33:01, skipping insertion in model container [2018-11-18 12:33:01,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:33:01" (3/3) ... [2018-11-18 12:33:01,383 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d_true-unreach-call.c [2018-11-18 12:33:01,389 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:33:01,394 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:33:01,403 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:33:01,421 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:33:01,421 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:33:01,421 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:33:01,421 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:33:01,421 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:33:01,422 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:33:01,422 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:33:01,422 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:33:01,422 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:33:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-18 12:33:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:33:01,435 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:33:01,436 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, 1, 1, 1] [2018-11-18 12:33:01,437 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:33:01,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:33:01,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1707935894, now seen corresponding path program 1 times [2018-11-18 12:33:01,443 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:33:01,444 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 12:33:01,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:33:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:33:01,496 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:33:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:33:01,513 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:33:01,521 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:33:01,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:33:01,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:33:01,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:33:01,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:33:01,533 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-18 12:33:01,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:33:01,549 INFO L93 Difference]: Finished difference Result 90 states and 133 transitions. [2018-11-18 12:33:01,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:33:01,550 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 12:33:01,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:33:01,556 INFO L225 Difference]: With dead ends: 90 [2018-11-18 12:33:01,556 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 12:33:01,559 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:33:01,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 12:33:01,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-18 12:33:01,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 12:33:01,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2018-11-18 12:33:01,583 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 24 [2018-11-18 12:33:01,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:33:01,584 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2018-11-18 12:33:01,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:33:01,584 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2018-11-18 12:33:01,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:33:01,585 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:33:01,585 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, 1, 1, 1, 1, 1] [2018-11-18 12:33:01,585 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:33:01,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:33:01,585 INFO L82 PathProgramCache]: Analyzing trace with hash 448049264, now seen corresponding path program 1 times [2018-11-18 12:33:01,586 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:33:01,586 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/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 [2018-11-18 12:33:01,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:33:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:33:01,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:33:01,737 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:01,738 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:01,742 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:33:01,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-11-18 12:33:01,811 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:33:01,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 12:33:01,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 12:33:01,837 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:33:01,841 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:33:01,844 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:33:01,856 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 12:33:01,856 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 12:33:03,545 WARN L180 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 18 [2018-11-18 12:33:05,382 WARN L180 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-18 12:33:07,242 WARN L180 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-18 12:33:09,109 WARN L180 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 28 [2018-11-18 12:33:09,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:33:09,195 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:33:09,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:33:09,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 12:33:09,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:33:09,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:33:09,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:33:09,209 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 9 states. [2018-11-18 12:33:11,340 WARN L180 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 20 [2018-11-18 12:33:13,425 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 28 [2018-11-18 12:33:15,505 WARN L180 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 29 [2018-11-18 12:33:19,624 WARN L180 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2018-11-18 12:33:25,179 WARN L180 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2018-11-18 12:33:33,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:33:33,504 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2018-11-18 12:33:33,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 12:33:33,507 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-11-18 12:33:33,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:33:33,509 INFO L225 Difference]: With dead ends: 83 [2018-11-18 12:33:33,509 INFO L226 Difference]: Without dead ends: 50 [2018-11-18 12:33:33,510 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-11-18 12:33:33,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-18 12:33:33,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2018-11-18 12:33:33,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:33:33,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-18 12:33:33,516 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 26 [2018-11-18 12:33:33,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:33:33,516 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-18 12:33:33,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:33:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-18 12:33:33,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:33:33,517 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:33:33,517 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, 1, 1, 1, 1, 1] [2018-11-18 12:33:33,517 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:33:33,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:33:33,517 INFO L82 PathProgramCache]: Analyzing trace with hash 2031003705, now seen corresponding path program 1 times [2018-11-18 12:33:33,518 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:33:33,518 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/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 [2018-11-18 12:33:33,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:33:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:33:33,599 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:33:33,619 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:33,620 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:33,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:33:33,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-11-18 12:33:33,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:33:33,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 12:33:33,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 12:33:33,668 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:33:33,671 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:33:33,673 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:33:33,679 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:33:33,679 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 12:33:33,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:33:33,756 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:33:33,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:33:33,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:33:33,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:33:33,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:33:33,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:33:33,767 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-11-18 12:33:34,145 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 12:33:35,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:33:35,314 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2018-11-18 12:33:35,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:33:35,315 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 12:33:35,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:33:35,316 INFO L225 Difference]: With dead ends: 63 [2018-11-18 12:33:35,316 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 12:33:35,316 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:33:35,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 12:33:35,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-18 12:33:35,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 12:33:35,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-18 12:33:35,319 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26 [2018-11-18 12:33:35,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:33:35,319 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-18 12:33:35,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:33:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-18 12:33:35,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:33:35,320 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:33:35,320 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, 1, 1, 1, 1, 1] [2018-11-18 12:33:35,320 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:33:35,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:33:35,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1730844569, now seen corresponding path program 1 times [2018-11-18 12:33:35,321 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:33:35,321 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 12:33:35,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:33:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:33:35,452 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:33:35,936 WARN L180 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-18 12:33:36,265 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:36,266 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:36,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:33:36,298 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:36,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 12:33:36,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:33:36,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 12:33:36,325 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 12:33:36,325 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:33:36,328 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:33:36,331 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:33:36,340 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:33:36,340 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 12:33:36,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:33:36,802 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:33:36,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:33:36,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 12:33:36,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:33:36,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:33:36,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:33:36,811 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 11 states. [2018-11-18 12:33:38,126 WARN L180 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 12:33:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:33:40,057 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-11-18 12:33:40,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:33:40,058 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-18 12:33:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:33:40,059 INFO L225 Difference]: With dead ends: 34 [2018-11-18 12:33:40,059 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 12:33:40,059 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 12:33:40,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 12:33:40,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-18 12:33:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 12:33:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-18 12:33:40,065 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2018-11-18 12:33:40,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:33:40,066 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-18 12:33:40,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:33:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-18 12:33:40,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:33:40,066 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:33:40,066 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, 1, 1, 1, 1, 1] [2018-11-18 12:33:40,067 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:33:40,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:33:40,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1437441562, now seen corresponding path program 1 times [2018-11-18 12:33:40,067 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:33:40,067 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 12:33:40,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:33:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:33:40,170 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:33:40,185 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:40,186 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:33:40,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:33:40,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-18 12:33:40,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:33:40,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 12:33:40,234 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-11-18 12:33:40,234 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:33:40,235 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:33:40,237 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:33:40,243 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:33:40,243 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 12:33:40,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:33:40,316 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:33:40,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:33:40,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:33:40,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:33:40,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:33:40,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:33:40,325 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 7 states. [2018-11-18 12:33:40,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:33:40,627 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-18 12:33:40,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:33:40,627 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 12:33:40,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:33:40,628 INFO L225 Difference]: With dead ends: 27 [2018-11-18 12:33:40,628 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:33:40,628 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:33:40,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:33:40,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:33:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:33:40,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:33:40,629 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 12:33:40,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:33:40,629 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:33:40,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:33:40,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:33:40,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:33:40,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:33:40,686 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:33:40,686 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:33:40,686 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:33:40,686 INFO L425 ceAbstractionStarter]: For program point L83-1(lines 83 88) no Hoare annotation was computed. [2018-11-18 12:33:40,686 INFO L421 ceAbstractionStarter]: At program point L83-3(lines 83 88) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-18 12:33:40,686 INFO L425 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 81 93) no Hoare annotation was computed. [2018-11-18 12:33:40,686 INFO L425 ceAbstractionStarter]: For program point L83-4(lines 83 88) no Hoare annotation was computed. [2018-11-18 12:33:40,686 INFO L425 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 81 93) no Hoare annotation was computed. [2018-11-18 12:33:40,686 INFO L428 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 81 93) the Hoare annotation is: true [2018-11-18 12:33:40,686 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 47) no Hoare annotation was computed. [2018-11-18 12:33:40,686 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-11-18 12:33:40,686 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 70) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 35) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 36) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 69) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 52) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 46) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 35) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 67) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 67) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L428 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 16 78) the Hoare annotation is: true [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L71(lines 71 76) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L71-2(lines 16 78) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 16 78) no Hoare annotation was computed. [2018-11-18 12:33:40,687 INFO L425 ceAbstractionStarter]: For program point L71-3(lines 71 76) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 16 78) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 64) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point L63-2(lines 63 64) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 66) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 70) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 40) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:33:40,688 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:33:40,688 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:33:40,688 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:33:40,689 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 95 113) the Hoare annotation is: true [2018-11-18 12:33:40,689 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2018-11-18 12:33:40,689 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 95 113) no Hoare annotation was computed. [2018-11-18 12:33:40,689 INFO L425 ceAbstractionStarter]: For program point L108(line 108) no Hoare annotation was computed. [2018-11-18 12:33:40,689 INFO L421 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= .cse0 main_~x~0))) [2018-11-18 12:33:40,689 INFO L425 ceAbstractionStarter]: For program point L107-1(lines 107 110) no Hoare annotation was computed. [2018-11-18 12:33:40,689 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 95 113) no Hoare annotation was computed. [2018-11-18 12:33:40,689 INFO L421 ceAbstractionStarter]: At program point L104(line 104) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0) [2018-11-18 12:33:40,689 INFO L425 ceAbstractionStarter]: For program point L104-1(line 104) no Hoare annotation was computed. [2018-11-18 12:33:40,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:33:40 BoogieIcfgContainer [2018-11-18 12:33:40,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:33:40,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:33:40,698 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:33:40,698 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:33:40,698 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:33:01" (3/4) ... [2018-11-18 12:33:40,701 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:33:40,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:33:40,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-18 12:33:40,705 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-11-18 12:33:40,706 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:33:40,709 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-11-18 12:33:40,709 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 12:33:40,709 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:33:40,730 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 12:33:40,730 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 12:33:40,753 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_69d34cad-88e9-493c-bcd7-dfd1bf96a04a/bin-2019/utaipan/witness.graphml [2018-11-18 12:33:40,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:33:40,753 INFO L168 Benchmark]: Toolchain (without parser) took 40737.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 949.2 MB in the beginning and 808.0 MB in the end (delta: 141.2 MB). Peak memory consumption was 277.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:33:40,754 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:33:40,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.68 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:33:40,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.27 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:33:40,754 INFO L168 Benchmark]: Boogie Preprocessor took 73.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:33:40,755 INFO L168 Benchmark]: RCFGBuilder took 1027.90 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:33:40,755 INFO L168 Benchmark]: TraceAbstraction took 39318.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 808.0 MB in the end (delta: 287.8 MB). Peak memory consumption was 287.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:33:40,755 INFO L168 Benchmark]: Witness Printer took 55.10 ms. Allocated memory is still 1.2 GB. Free memory is still 808.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:33:40,756 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.68 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 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 22.27 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -197.6 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1027.90 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 39318.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 808.0 MB in the end (delta: 287.8 MB). Peak memory consumption was 287.8 MB. Max. memory is 11.5 GB. * Witness Printer took 55.10 ms. Allocated memory is still 1.2 GB. Free memory is still 808.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. SAFE Result, 39.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 29.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 149 SDtfs, 216 SDslu, 421 SDs, 0 SdLazy, 368 SolverSat, 31 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 12.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 25.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 123 ConstructedInterpolants, 26 QuantifiedInterpolants, 22454 SizeOfPredicates, 20 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...