./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a_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_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/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 66cb741c1a4973eb036ada076f70b691f8ab4b25 .................................................................................................................................................................................................................................................................................................................................... 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_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/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 66cb741c1a4973eb036ada076f70b691f8ab4b25 ............................................................................................................................................................................................................................................................................................................................................................................ 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 13:29:19,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:29:19,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:29:19,255 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:29:19,255 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:29:19,255 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:29:19,256 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:29:19,257 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:29:19,257 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:29:19,258 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:29:19,258 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:29:19,258 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:29:19,259 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:29:19,260 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:29:19,260 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:29:19,261 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:29:19,261 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:29:19,262 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:29:19,263 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:29:19,264 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:29:19,265 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:29:19,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:29:19,267 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:29:19,267 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:29:19,267 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:29:19,268 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:29:19,268 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:29:19,269 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:29:19,269 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:29:19,270 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:29:19,270 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:29:19,271 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:29:19,271 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:29:19,271 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:29:19,272 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:29:19,272 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:29:19,272 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:29:19,279 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:29:19,280 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:29:19,280 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:29:19,280 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:29:19,280 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:29:19,281 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:29:19,281 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:29:19,281 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:29:19,281 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:29:19,281 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:29:19,281 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:29:19,281 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:29:19,282 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:29:19,282 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:29:19,282 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:29:19,282 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:29:19,282 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:29:19,283 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:29:19,283 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:29:19,283 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:29:19,283 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:29:19,283 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:29:19,283 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:29:19,283 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:29:19,283 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:29:19,284 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:29:19,284 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:29:19,284 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:29:19,284 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:29:19,284 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:29:19,284 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:29:19,284 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:29:19,284 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:29:19,285 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:29:19,285 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:29:19,285 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:29:19,285 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:29:19,285 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_7e439f87-af62-4f58-af28-fd9f8bc2479c/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 -> 66cb741c1a4973eb036ada076f70b691f8ab4b25 [2018-11-18 13:29:19,308 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:29:19,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:29:19,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:29:19,320 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:29:19,321 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:29:19,321 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a_true-unreach-call.c [2018-11-18 13:29:19,359 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data/6be50821a/714a6d08f734431dba0da8ede745bcf7/FLAGf4612ea85 [2018-11-18 13:29:19,784 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:29:19,784 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/sv-benchmarks/c/float-newlib/double_req_bl_1122a_true-unreach-call.c [2018-11-18 13:29:19,790 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data/6be50821a/714a6d08f734431dba0da8ede745bcf7/FLAGf4612ea85 [2018-11-18 13:29:19,803 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data/6be50821a/714a6d08f734431dba0da8ede745bcf7 [2018-11-18 13:29:19,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:29:19,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:29:19,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:29:19,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:29:19,809 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:29:19,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:29:19" (1/1) ... [2018-11-18 13:29:19,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@323d36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:19, skipping insertion in model container [2018-11-18 13:29:19,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:29:19" (1/1) ... [2018-11-18 13:29:19,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:29:19,842 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:29:19,979 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:29:19,982 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:29:20,008 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:29:20,058 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:29:20,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20 WrapperNode [2018-11-18 13:29:20,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:29:20,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:29:20,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:29:20,059 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:29:20,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:29:20,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:29:20,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:29:20,078 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:29:20,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... [2018-11-18 13:29:20,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:29:20,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:29:20,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:29:20,113 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:29:20,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/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 13:29:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 13:29:20,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 13:29:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:29:20,146 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:29:20,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:29:20,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-11-18 13:29:20,147 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:29:20,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:29:20,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:29:20,489 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:29:20,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:20 BoogieIcfgContainer [2018-11-18 13:29:20,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:29:20,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:29:20,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:29:20,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:29:20,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:29:19" (1/3) ... [2018-11-18 13:29:20,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec5b46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:29:20, skipping insertion in model container [2018-11-18 13:29:20,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:20" (2/3) ... [2018-11-18 13:29:20,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec5b46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:29:20, skipping insertion in model container [2018-11-18 13:29:20,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:20" (3/3) ... [2018-11-18 13:29:20,494 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a_true-unreach-call.c [2018-11-18 13:29:20,499 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:29:20,504 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:29:20,513 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:29:20,535 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:29:20,535 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:29:20,536 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:29:20,536 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:29:20,536 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:29:20,536 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:29:20,536 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:29:20,536 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:29:20,548 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2018-11-18 13:29:20,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 13:29:20,553 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:29:20,554 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] [2018-11-18 13:29:20,555 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:29:20,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:20,559 INFO L82 PathProgramCache]: Analyzing trace with hash 717823084, now seen corresponding path program 1 times [2018-11-18 13:29:20,560 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:29:20,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:20,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:20,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:20,589 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:29:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:20,656 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 13:29:20,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:29:20,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:29:20,657 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:29:20,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:29:20,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:29:20,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:29:20,669 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2018-11-18 13:29:20,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:29:20,686 INFO L93 Difference]: Finished difference Result 140 states and 222 transitions. [2018-11-18 13:29:20,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:29:20,687 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 13:29:20,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:29:20,695 INFO L225 Difference]: With dead ends: 140 [2018-11-18 13:29:20,695 INFO L226 Difference]: Without dead ends: 70 [2018-11-18 13:29:20,697 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 13:29:20,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-11-18 13:29:20,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-11-18 13:29:20,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-11-18 13:29:20,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2018-11-18 13:29:20,723 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 22 [2018-11-18 13:29:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:29:20,724 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2018-11-18 13:29:20,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:29:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2018-11-18 13:29:20,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 13:29:20,725 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:29:20,725 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 13:29:20,725 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:29:20,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:20,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1623631272, now seen corresponding path program 1 times [2018-11-18 13:29:20,726 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:29:20,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:20,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:20,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:20,727 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:29:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:20,808 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:29:20,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:29:20 BoogieIcfgContainer [2018-11-18 13:29:20,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:29:20,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:29:20,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:29:20,828 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:29:20,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:20" (3/4) ... [2018-11-18 13:29:20,832 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:29:20,832 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:29:20,832 INFO L168 Benchmark]: Toolchain (without parser) took 1027.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -101.1 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:20,833 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:29:20,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:20,834 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.75 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 13:29:20,834 INFO L168 Benchmark]: Boogie Preprocessor took 33.97 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:20,834 INFO L168 Benchmark]: RCFGBuilder took 376.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:20,835 INFO L168 Benchmark]: TraceAbstraction took 338.19 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: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:20,835 INFO L168 Benchmark]: Witness Printer took 3.63 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 13:29:20,837 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 252.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.75 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. * Boogie Preprocessor took 33.97 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 376.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 338.19 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: 36.0 MB). Peak memory consumption was 36.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.63 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: 176]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [\old(one_fmod)=6442450959, \old(Zero_fmod)=6442450950, \old(Zero_fmod)=6442450955, one_fmod=1, Zero_fmod={6442450954:0}] [L170] double x = 1.0 / 0.0; [L171] double y = __VERIFIER_nondet_double(); [L172] CALL, EXPR fmod_double(x, y) VAL [\old(x)=6442450957, \old(y)=6442450956, one_fmod=1, Zero_fmod={6442450954:0}] [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [\old(x)=6442450957, \old(y)=6442450956, one_fmod=1, x=6442450957, y=6442450956, Zero_fmod={6442450954:0}] [L28] FCALL ieee_double_shape_type ew_u; [L29] FCALL ew_u.value = (x) [L30] EXPR, FCALL ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR, FCALL ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L32] COND FALSE !(0) VAL [\old(x)=6442450957, \old(y)=6442450956, hx=2147483647, lx=6442450953, one_fmod=1, x=6442450957, y=6442450956, Zero_fmod={6442450954:0}] [L34] FCALL ieee_double_shape_type ew_u; [L35] FCALL ew_u.value = (y) [L36] EXPR, FCALL ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR, FCALL ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L38] COND FALSE !(0) VAL [\old(x)=6442450957, \old(y)=6442450956, hx=2147483647, hy=3, lx=6442450953, ly=6442450958, one_fmod=1, x=6442450957, y=6442450956, Zero_fmod={6442450954:0}] [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [\old(x)=6442450957, \old(y)=6442450956, lx=6442450953, ly=6442450958, one_fmod=1, sx=0, x=6442450957, y=6442450956, Zero_fmod={6442450954:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] RET return (x * y) / (x * y); VAL [\old(x)=6442450957, \old(y)=6442450956, hx=2146435072, lx=6442450953, ly=6442450958, one_fmod=1, sx=0, x=6442450957, y=6442450956, Zero_fmod={6442450954:0}] [L172] EXPR fmod_double(x, y) VAL [fmod_double(x, y)=6442450947, one_fmod=1, x=6442450957, y=6442450956, Zero_fmod={6442450954:0}] [L172] double res = fmod_double(x, y); [L175] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450947, one_fmod=1, Zero_fmod={6442450954:0}] [L16] RET return x != x; VAL [\old(x)=6442450947, \result=0, one_fmod=1, x=6442450947, Zero_fmod={6442450954:0}] [L175] EXPR isnan_double(res) VAL [isnan_double(res)=0, one_fmod=1, res=6442450947, x=6442450957, y=6442450956, Zero_fmod={6442450954:0}] [L175] COND TRUE !isnan_double(res) [L176] __VERIFIER_error() VAL [one_fmod=1, res=6442450947, x=6442450957, y=6442450956, Zero_fmod={6442450954:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 74 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 100 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=74occurred 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, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 13:29:22,214 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:29:22,216 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:29:22,223 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:29:22,223 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:29:22,224 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:29:22,224 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:29:22,226 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:29:22,226 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:29:22,227 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:29:22,228 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:29:22,228 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:29:22,229 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:29:22,229 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:29:22,230 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:29:22,230 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:29:22,231 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:29:22,232 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:29:22,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:29:22,234 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:29:22,235 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:29:22,236 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:29:22,238 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:29:22,238 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:29:22,238 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:29:22,239 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:29:22,239 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:29:22,240 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:29:22,240 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:29:22,241 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:29:22,241 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:29:22,242 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:29:22,242 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:29:22,242 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:29:22,243 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:29:22,243 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:29:22,243 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 13:29:22,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:29:22,253 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:29:22,254 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:29:22,254 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:29:22,254 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:29:22,254 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:29:22,254 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:29:22,255 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:29:22,255 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:29:22,255 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:29:22,255 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:29:22,255 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:29:22,256 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:29:22,256 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:29:22,256 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:29:22,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:29:22,256 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:29:22,256 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:29:22,256 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:29:22,256 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:29:22,257 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:29:22,257 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:29:22,257 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:29:22,257 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:29:22,257 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:29:22,257 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:29:22,257 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:29:22,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:29:22,258 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:29:22,258 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:29:22,258 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:29:22,258 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 13:29:22,258 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:29:22,258 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:29:22,259 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:29:22,259 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_7e439f87-af62-4f58-af28-fd9f8bc2479c/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 -> 66cb741c1a4973eb036ada076f70b691f8ab4b25 [2018-11-18 13:29:22,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:29:22,293 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:29:22,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:29:22,296 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:29:22,296 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:29:22,297 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a_true-unreach-call.c [2018-11-18 13:29:22,333 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data/304b5e79a/f2c396a6ec3a4c1f8b31550b8b6ea127/FLAGdf5d5538d [2018-11-18 13:29:22,725 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:29:22,725 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/sv-benchmarks/c/float-newlib/double_req_bl_1122a_true-unreach-call.c [2018-11-18 13:29:22,729 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data/304b5e79a/f2c396a6ec3a4c1f8b31550b8b6ea127/FLAGdf5d5538d [2018-11-18 13:29:22,737 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/data/304b5e79a/f2c396a6ec3a4c1f8b31550b8b6ea127 [2018-11-18 13:29:22,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:29:22,740 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:29:22,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:29:22,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:29:22,743 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:29:22,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:22,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27184d11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22, skipping insertion in model container [2018-11-18 13:29:22,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:22,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:29:22,771 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:29:22,918 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:29:22,924 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:29:22,960 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:29:22,980 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:29:22,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22 WrapperNode [2018-11-18 13:29:22,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:29:22,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:29:22,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:29:22,981 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:29:22,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:29:23,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:29:23,048 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:29:23,048 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:29:23,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... [2018-11-18 13:29:23,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:29:23,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:29:23,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:29:23,085 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:29:23,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/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 13:29:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 13:29:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 13:29:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 13:29:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 13:29:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 13:29:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:29:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:29:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:29:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:29:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:29:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 13:29:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-11-18 13:29:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-11-18 13:29:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:29:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:29:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 13:29:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:29:23,217 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:29:23,270 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:29:23,302 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:29:26,062 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:29:26,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:26 BoogieIcfgContainer [2018-11-18 13:29:26,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:29:26,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:29:26,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:29:26,066 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:29:26,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:29:22" (1/3) ... [2018-11-18 13:29:26,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3155b591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:29:26, skipping insertion in model container [2018-11-18 13:29:26,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:22" (2/3) ... [2018-11-18 13:29:26,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3155b591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:29:26, skipping insertion in model container [2018-11-18 13:29:26,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:26" (3/3) ... [2018-11-18 13:29:26,069 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a_true-unreach-call.c [2018-11-18 13:29:26,080 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:29:26,084 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:29:26,093 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:29:26,110 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:29:26,110 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:29:26,110 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:29:26,110 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:29:26,110 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:29:26,111 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:29:26,111 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:29:26,111 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:29:26,111 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:29:26,121 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-11-18 13:29:26,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 13:29:26,125 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:29:26,126 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:29:26,127 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:29:26,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:26,130 INFO L82 PathProgramCache]: Analyzing trace with hash -359741573, now seen corresponding path program 1 times [2018-11-18 13:29:26,132 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:29:26,133 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/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 13:29:26,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:26,869 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:26,881 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 13:29:26,882 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:29:26,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:29:26,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:29:26,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:29:26,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:29:26,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:29:26,910 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-11-18 13:29:26,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:29:26,926 INFO L93 Difference]: Finished difference Result 73 states and 114 transitions. [2018-11-18 13:29:26,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:29:26,927 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 13:29:26,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:29:26,931 INFO L225 Difference]: With dead ends: 73 [2018-11-18 13:29:26,931 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:29:26,934 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 13:29:26,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:29:26,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:29:26,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:29:26,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:29:26,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-18 13:29:26,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:29:26,952 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:29:26,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:29:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:29:26,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:29:26,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:29:26,993 INFO L428 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 16) the Hoare annotation is: true [2018-11-18 13:29:26,993 INFO L425 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 16) no Hoare annotation was computed. [2018-11-18 13:29:26,993 INFO L425 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 16) no Hoare annotation was computed. [2018-11-18 13:29:26,993 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:29:26,993 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:29:26,993 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:29:26,993 INFO L425 ceAbstractionStarter]: For program point L101-4(lines 101 115) no Hoare annotation was computed. [2018-11-18 13:29:26,993 INFO L425 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2018-11-18 13:29:26,994 INFO L425 ceAbstractionStarter]: For program point L118-2(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,994 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 69 70) no Hoare annotation was computed. [2018-11-18 13:29:26,994 INFO L425 ceAbstractionStarter]: For program point L69-3(lines 69 70) no Hoare annotation was computed. [2018-11-18 13:29:26,994 INFO L428 ceAbstractionStarter]: At program point L69-4(lines 69 70) the Hoare annotation is: true [2018-11-18 13:29:26,994 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 157) no Hoare annotation was computed. [2018-11-18 13:29:26,994 INFO L425 ceAbstractionStarter]: For program point L152-2(lines 140 159) no Hoare annotation was computed. [2018-11-18 13:29:26,994 INFO L425 ceAbstractionStarter]: For program point L53(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,994 INFO L425 ceAbstractionStarter]: For program point L152-3(lines 152 157) no Hoare annotation was computed. [2018-11-18 13:29:26,994 INFO L425 ceAbstractionStarter]: For program point fmod_doubleFINAL(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 60) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L104(lines 104 105) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L104-2(lines 101 115) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L55-1(lines 55 56) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L55-3(lines 55 56) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L428 ceAbstractionStarter]: At program point L55-4(lines 55 56) the Hoare annotation is: true [2018-11-18 13:29:26,995 INFO L428 ceAbstractionStarter]: At program point L106-1(lines 101 115) the Hoare annotation is: true [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 59) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L91-2(lines 87 98) no Hoare annotation was computed. [2018-11-18 13:29:26,995 INFO L425 ceAbstractionStarter]: For program point L58-3(lines 58 59) no Hoare annotation was computed. [2018-11-18 13:29:26,996 INFO L428 ceAbstractionStarter]: At program point fmod_doubleENTRY(lines 23 161) the Hoare annotation is: true [2018-11-18 13:29:26,996 INFO L428 ceAbstractionStarter]: At program point L58-4(lines 58 59) the Hoare annotation is: true [2018-11-18 13:29:26,996 INFO L425 ceAbstractionStarter]: For program point L142(lines 142 151) no Hoare annotation was computed. [2018-11-18 13:29:26,996 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 45) no Hoare annotation was computed. [2018-11-18 13:29:26,996 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 27 32) no Hoare annotation was computed. [2018-11-18 13:29:26,996 INFO L428 ceAbstractionStarter]: At program point L27-3(lines 27 32) the Hoare annotation is: true [2018-11-18 13:29:26,996 INFO L425 ceAbstractionStarter]: For program point L110(lines 110 111) no Hoare annotation was computed. [2018-11-18 13:29:26,996 INFO L425 ceAbstractionStarter]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2018-11-18 13:29:26,996 INFO L428 ceAbstractionStarter]: At program point L127-3(lines 127 131) the Hoare annotation is: true [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L127-4(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L145(lines 145 151) no Hoare annotation was computed. [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L79(lines 79 85) no Hoare annotation was computed. [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 51) no Hoare annotation was computed. [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L79-2(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L46-2(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L64(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,998 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L425 ceAbstractionStarter]: For program point fmod_doubleEXIT(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L425 ceAbstractionStarter]: For program point L132(lines 132 159) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 38) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 66 67) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L425 ceAbstractionStarter]: For program point L33-2(lines 23 161) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L425 ceAbstractionStarter]: For program point L66-3(lines 66 67) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L425 ceAbstractionStarter]: For program point L33-3(lines 33 38) no Hoare annotation was computed. [2018-11-18 13:29:26,999 INFO L428 ceAbstractionStarter]: At program point L66-4(lines 66 67) the Hoare annotation is: true [2018-11-18 13:29:27,000 INFO L425 ceAbstractionStarter]: For program point L134-1(lines 134 139) no Hoare annotation was computed. [2018-11-18 13:29:27,000 INFO L425 ceAbstractionStarter]: For program point L101-1(lines 101 115) no Hoare annotation was computed. [2018-11-18 13:29:27,000 INFO L425 ceAbstractionStarter]: For program point L101-2(lines 101 115) no Hoare annotation was computed. [2018-11-18 13:29:27,000 INFO L428 ceAbstractionStarter]: At program point L134-3(lines 134 139) the Hoare annotation is: true [2018-11-18 13:29:27,000 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:29:27,000 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: false [2018-11-18 13:29:27,000 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:29:27,000 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:29:27,000 INFO L425 ceAbstractionStarter]: For program point L176(line 176) no Hoare annotation was computed. [2018-11-18 13:29:27,000 INFO L428 ceAbstractionStarter]: At program point L175(line 175) the Hoare annotation is: true [2018-11-18 13:29:27,000 INFO L425 ceAbstractionStarter]: For program point L175-1(lines 175 178) no Hoare annotation was computed. [2018-11-18 13:29:27,001 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2018-11-18 13:29:27,001 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 163 181) the Hoare annotation is: true [2018-11-18 13:29:27,001 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 163 181) no Hoare annotation was computed. [2018-11-18 13:29:27,001 INFO L428 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: true [2018-11-18 13:29:27,001 INFO L425 ceAbstractionStarter]: For program point L172-1(line 172) no Hoare annotation was computed. [2018-11-18 13:29:27,001 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 163 181) no Hoare annotation was computed. [2018-11-18 13:29:27,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:29:27 BoogieIcfgContainer [2018-11-18 13:29:27,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:29:27,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:29:27,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:29:27,006 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:29:27,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:26" (3/4) ... [2018-11-18 13:29:27,008 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:29:27,012 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-11-18 13:29:27,012 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:29:27,013 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fmod_double [2018-11-18 13:29:27,013 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:29:27,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2018-11-18 13:29:27,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-18 13:29:27,016 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:29:27,017 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:29:27,059 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7e439f87-af62-4f58-af28-fd9f8bc2479c/bin-2019/utaipan/witness.graphml [2018-11-18 13:29:27,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:29:27,060 INFO L168 Benchmark]: Toolchain (without parser) took 4321.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -105.0 MB). Peak memory consumption was 48.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:27,061 INFO L168 Benchmark]: CDTParser took 0.11 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 13:29:27,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.31 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:27,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -214.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:27,062 INFO L168 Benchmark]: Boogie Preprocessor took 36.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:27,062 INFO L168 Benchmark]: RCFGBuilder took 2978.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:27,063 INFO L168 Benchmark]: TraceAbstraction took 941.50 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: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:27,063 INFO L168 Benchmark]: Witness Printer took 54.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:27,064 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 240.31 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -214.4 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2978.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 941.50 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: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * Witness Printer took 54.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 176]: 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: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 73 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 16 NumberOfFragments, 16 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...