./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 31da98a788dd1938c78053bade42bc512d4e8954 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 31da98a788dd1938c78053bade42bc512d4e8954 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:34:52,210 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:34:52,211 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:34:52,217 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:34:52,218 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:34:52,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:34:52,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:34:52,220 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:34:52,221 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:34:52,222 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:34:52,223 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:34:52,223 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:34:52,223 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:34:52,224 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:34:52,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:34:52,225 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:34:52,225 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:34:52,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:34:52,228 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:34:52,229 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:34:52,230 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:34:52,230 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:34:52,232 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:34:52,232 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:34:52,232 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:34:52,233 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:34:52,234 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:34:52,234 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:34:52,235 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:34:52,235 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:34:52,235 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:34:52,236 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:34:52,236 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:34:52,236 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:34:52,236 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:34:52,237 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:34:52,237 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:34:52,245 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:34:52,245 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:34:52,246 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:34:52,246 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:34:52,246 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:34:52,246 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:34:52,247 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:34:52,247 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:34:52,247 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:34:52,247 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:34:52,247 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:34:52,248 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:34:52,248 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:34:52,248 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:34:52,248 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:34:52,248 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:34:52,248 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:34:52,248 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:34:52,248 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:34:52,249 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:34:52,249 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:34:52,249 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:34:52,249 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:34:52,249 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:34:52,249 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:34:52,249 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:34:52,250 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:34:52,250 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:34:52,250 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:34:52,250 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:34:52,250 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:34:52,250 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:34:52,250 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:34:52,250 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:34:52,251 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_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2018-11-10 13:34:52,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:34:52,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:34:52,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:34:52,287 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:34:52,287 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:34:52,288 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-11-10 13:34:52,333 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data/03337f6b4/5948ded8161049cd90a752eb95ad0d25/FLAGb1f1f529e [2018-11-10 13:34:52,742 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:34:52,742 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-11-10 13:34:52,746 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data/03337f6b4/5948ded8161049cd90a752eb95ad0d25/FLAGb1f1f529e [2018-11-10 13:34:52,755 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data/03337f6b4/5948ded8161049cd90a752eb95ad0d25 [2018-11-10 13:34:52,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:34:52,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:34:52,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:34:52,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:34:52,762 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:34:52,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f1788b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52, skipping insertion in model container [2018-11-10 13:34:52,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,771 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:34:52,787 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:34:52,885 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:34:52,886 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:34:52,901 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:34:52,914 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:34:52,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52 WrapperNode [2018-11-10 13:34:52,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:34:52,915 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:34:52,915 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:34:52,915 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:34:52,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:34:52,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:34:52,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:34:52,940 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:34:52,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,950 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... [2018-11-10 13:34:52,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:34:52,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:34:52,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:34:52,990 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:34:52,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 [2018-11-10 13:34:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:34:53,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:34:53,026 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-10 13:34:53,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-10 13:34:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 13:34:53,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 13:34:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:34:53,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:34:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-11-10 13:34:53,027 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-11-10 13:34:53,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:34:53,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:34:53,205 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:34:53,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:53 BoogieIcfgContainer [2018-11-10 13:34:53,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:34:53,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:34:53,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:34:53,209 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:34:53,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:34:52" (1/3) ... [2018-11-10 13:34:53,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a0ed7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:34:53, skipping insertion in model container [2018-11-10 13:34:53,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:52" (2/3) ... [2018-11-10 13:34:53,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47a0ed7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:34:53, skipping insertion in model container [2018-11-10 13:34:53,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:53" (3/3) ... [2018-11-10 13:34:53,212 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230_true-unreach-call.c [2018-11-10 13:34:53,221 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:34:53,227 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:34:53,240 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:34:53,259 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:34:53,260 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:34:53,260 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:34:53,260 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:34:53,260 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:34:53,260 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:34:53,260 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:34:53,260 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:34:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-10 13:34:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 13:34:53,277 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:53,277 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] [2018-11-10 13:34:53,278 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:53,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:53,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1337120618, now seen corresponding path program 1 times [2018-11-10 13:34:53,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:53,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:53,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:53,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:53,314 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:53,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:53,372 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:34:53,372 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:34:53,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:34:53,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:34:53,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:34:53,385 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-10 13:34:53,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:53,402 INFO L93 Difference]: Finished difference Result 71 states and 92 transitions. [2018-11-10 13:34:53,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:34:53,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-11-10 13:34:53,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:53,410 INFO L225 Difference]: With dead ends: 71 [2018-11-10 13:34:53,410 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 13:34:53,413 INFO L605 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 [2018-11-10 13:34:53,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 13:34:53,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 13:34:53,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:34:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-10 13:34:53,441 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 26 [2018-11-10 13:34:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:53,441 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-10 13:34:53,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:34:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-10 13:34:53,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 13:34:53,442 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:53,443 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] [2018-11-10 13:34:53,443 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:53,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:53,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1634648754, now seen corresponding path program 1 times [2018-11-10 13:34:53,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:53,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:53,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:53,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:53,445 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:53,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:53,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:53,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:53,522 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:34:53,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:53,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:53,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:53,524 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2018-11-10 13:34:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:53,563 INFO L93 Difference]: Finished difference Result 51 states and 59 transitions. [2018-11-10 13:34:53,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:53,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-10 13:34:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:53,565 INFO L225 Difference]: With dead ends: 51 [2018-11-10 13:34:53,566 INFO L226 Difference]: Without dead ends: 40 [2018-11-10 13:34:53,566 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:53,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-10 13:34:53,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-10 13:34:53,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 13:34:53,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-10 13:34:53,571 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 27 [2018-11-10 13:34:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:53,572 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-10 13:34:53,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-10 13:34:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 13:34:53,572 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:53,573 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, 1, 1, 1] [2018-11-10 13:34:53,573 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:53,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:53,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1862652047, now seen corresponding path program 1 times [2018-11-10 13:34:53,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:53,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:53,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:53,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:53,574 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:53,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:53,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:53,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:53,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:53,624 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:34:53,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:53,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:53,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:53,625 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2018-11-10 13:34:53,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:53,661 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-11-10 13:34:53,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:53,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-10 13:34:53,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:53,662 INFO L225 Difference]: With dead ends: 55 [2018-11-10 13:34:53,662 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 13:34:53,663 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 13:34:53,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-11-10 13:34:53,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 13:34:53,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-10 13:34:53,668 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 30 [2018-11-10 13:34:53,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:53,668 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-10 13:34:53,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:53,668 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-10 13:34:53,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-10 13:34:53,669 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:53,669 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, 1, 1, 1] [2018-11-10 13:34:53,669 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:53,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:53,669 INFO L82 PathProgramCache]: Analyzing trace with hash -355100238, now seen corresponding path program 1 times [2018-11-10 13:34:53,669 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:34:53,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:53,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:53,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:34:53,670 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:34:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:34:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:34:53,719 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:34:53,728 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,729 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,729 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,729 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,729 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,729 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,730 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,730 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,730 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,730 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,730 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,730 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,731 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,731 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,731 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,731 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,731 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,731 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,731 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,732 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,732 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,732 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,732 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,732 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,732 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,733 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,733 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:34:53,733 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 13:34:53,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:34:53 BoogieIcfgContainer [2018-11-10 13:34:53,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:34:53,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:34:53,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:34:53,747 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:34:53,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:53" (3/4) ... [2018-11-10 13:34:53,751 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:34:53,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:34:53,752 INFO L168 Benchmark]: Toolchain (without parser) took 993.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -102.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:53,753 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. [2018-11-10 13:34:53,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.58 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:53,754 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.53 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:53,754 INFO L168 Benchmark]: Boogie Preprocessor took 49.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:53,755 INFO L168 Benchmark]: RCFGBuilder took 215.90 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:53,755 INFO L168 Benchmark]: TraceAbstraction took 539.74 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: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:53,756 INFO L168 Benchmark]: Witness Printer took 4.54 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. [2018-11-10 13:34:53,760 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 155.58 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 947.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.53 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 215.90 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 539.74 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: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.54 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 59]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 54. Possible FailurePath: [L54] float x = 0.0f / 0.0f; [L55] float y = 0.0f / 0.0f; [L56] CALL, EXPR fmin_float(x, y) VAL [\old(x)=2139095044, \old(y)=2139095045] [L35] CALL, EXPR __fpclassify_float(x) [L12] __uint32_t w; [L15] CALL ieee_float_shape_type gf_u; [L15] RET ieee_float_shape_type gf_u; [L16] CALL gf_u.value = (x) [L16] RET gf_u.value = (x) [L17] CALL, EXPR gf_u.word [L17] RET, EXPR gf_u.word [L17] (w) = gf_u.word [L17] RET (w) = gf_u.word [L18] COND FALSE !(0) [L20] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L22-L23] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L25-L26] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L28] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L31] RET return 0; [L35] EXPR __fpclassify_float(x) VAL [\old(x)=2139095044, \old(y)=2139095045, __fpclassify_float(x)=0, x=2139095044, y=2139095045] [L35] COND TRUE __fpclassify_float(x) == 0 [L36] RET return y; VAL [\old(x)=2139095044, \old(y)=2139095045, \result=2139095045, x=2139095044, y=2139095045] [L56] EXPR fmin_float(x, y) VAL [fmin_float(x, y)=2139095045, x=2139095044, y=2139095045] [L56] float res = fmin_float(x, y); [L58] CALL, EXPR isnan_float(res) VAL [\old(x)=2139095045] [L44] RET return x != x; VAL [\old(x)=2139095045, \result=0, x=2139095045] [L58] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=2139095045, x=2139095044, y=2139095045] [L58] COND TRUE !isnan_float(res) [L59] __VERIFIER_error() VAL [res=2139095045, x=2139095044, y=2139095045] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 40 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 134 SDtfs, 0 SDslu, 158 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 2582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:34:55,183 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:34:55,184 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:34:55,191 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:34:55,191 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:34:55,192 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:34:55,193 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:34:55,194 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:34:55,195 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:34:55,196 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:34:55,197 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:34:55,197 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:34:55,198 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:34:55,198 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:34:55,199 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:34:55,200 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:34:55,200 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:34:55,202 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:34:55,203 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:34:55,204 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:34:55,205 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:34:55,206 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:34:55,208 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:34:55,208 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:34:55,208 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:34:55,209 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:34:55,210 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:34:55,211 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:34:55,211 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:34:55,212 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:34:55,212 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:34:55,213 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:34:55,213 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:34:55,213 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:34:55,214 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:34:55,214 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:34:55,215 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 13:34:55,225 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:34:55,226 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:34:55,227 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:34:55,227 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:34:55,227 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:34:55,227 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:34:55,227 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:34:55,227 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:34:55,228 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:34:55,228 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:34:55,228 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:34:55,228 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:34:55,228 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:34:55,228 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:34:55,228 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:34:55,228 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:34:55,229 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:34:55,229 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:34:55,229 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:34:55,229 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:34:55,229 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:34:55,229 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:34:55,229 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:34:55,229 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:34:55,230 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:34:55,230 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:34:55,230 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:34:55,230 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:34:55,230 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 13:34:55,230 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:34:55,230 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:34:55,230 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:34:55,230 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_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 -> 31da98a788dd1938c78053bade42bc512d4e8954 [2018-11-10 13:34:55,259 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:34:55,267 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:34:55,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:34:55,270 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:34:55,270 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:34:55,270 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-11-10 13:34:55,305 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data/f1c194c25/5bff423bd44c4276878194eb6139d8bb/FLAGe95844087 [2018-11-10 13:34:55,696 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:34:55,697 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/sv-benchmarks/c/float-newlib/float_req_bl_1230_true-unreach-call.c [2018-11-10 13:34:55,701 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data/f1c194c25/5bff423bd44c4276878194eb6139d8bb/FLAGe95844087 [2018-11-10 13:34:55,710 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/data/f1c194c25/5bff423bd44c4276878194eb6139d8bb [2018-11-10 13:34:55,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:34:55,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:34:55,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:34:55,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:34:55,716 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:34:55,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d68c770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55, skipping insertion in model container [2018-11-10 13:34:55,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:34:55,739 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:34:55,846 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:34:55,850 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:34:55,867 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:34:55,886 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:34:55,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55 WrapperNode [2018-11-10 13:34:55,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:34:55,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:34:55,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:34:55,887 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:34:55,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:34:55,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:34:55,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:34:55,918 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:34:55,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... [2018-11-10 13:34:55,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:34:55,943 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:34:55,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:34:55,943 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:34:55,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 [2018-11-10 13:34:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:34:56,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:34:56,026 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-10 13:34:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-10 13:34:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-10 13:34:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-10 13:34:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:34:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:34:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-11-10 13:34:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-11-10 13:34:56,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:34:56,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:34:56,209 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:34:56,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:56 BoogieIcfgContainer [2018-11-10 13:34:56,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:34:56,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:34:56,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:34:56,212 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:34:56,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:34:55" (1/3) ... [2018-11-10 13:34:56,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d541380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:34:56, skipping insertion in model container [2018-11-10 13:34:56,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:34:55" (2/3) ... [2018-11-10 13:34:56,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d541380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:34:56, skipping insertion in model container [2018-11-10 13:34:56,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:56" (3/3) ... [2018-11-10 13:34:56,215 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1230_true-unreach-call.c [2018-11-10 13:34:56,222 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:34:56,228 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:34:56,240 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:34:56,263 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:34:56,264 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:34:56,264 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:34:56,264 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:34:56,264 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:34:56,264 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:34:56,264 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:34:56,264 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:34:56,264 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:34:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-10 13:34:56,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 13:34:56,281 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:56,281 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] [2018-11-10 13:34:56,283 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:56,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:56,288 INFO L82 PathProgramCache]: Analyzing trace with hash 815578478, now seen corresponding path program 1 times [2018-11-10 13:34:56,290 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:56,291 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 [2018-11-10 13:34:56,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:56,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:56,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:56,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:56,359 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:56,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:56,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:34:56,373 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:34:56,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:34:56,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:34:56,382 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-10 13:34:56,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:56,398 INFO L93 Difference]: Finished difference Result 65 states and 86 transitions. [2018-11-10 13:34:56,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:34:56,399 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-10 13:34:56,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:56,405 INFO L225 Difference]: With dead ends: 65 [2018-11-10 13:34:56,405 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 13:34:56,407 INFO L605 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 [2018-11-10 13:34:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 13:34:56,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 13:34:56,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 13:34:56,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2018-11-10 13:34:56,433 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 24 [2018-11-10 13:34:56,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:56,434 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-11-10 13:34:56,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:34:56,434 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2018-11-10 13:34:56,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 13:34:56,436 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:56,436 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, 1] [2018-11-10 13:34:56,436 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:56,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:56,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1081434887, now seen corresponding path program 1 times [2018-11-10 13:34:56,443 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:56,443 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 [2018-11-10 13:34:56,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:56,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:56,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:56,549 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:56,560 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:56,560 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:56,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:56,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:56,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:56,562 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand 4 states. [2018-11-10 13:34:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:56,586 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-11-10 13:34:56,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:56,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-10 13:34:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:56,589 INFO L225 Difference]: With dead ends: 46 [2018-11-10 13:34:56,589 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 13:34:56,589 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:56,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 13:34:56,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 13:34:56,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:34:56,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-10 13:34:56,597 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 25 [2018-11-10 13:34:56,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:56,597 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-10 13:34:56,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:56,597 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-10 13:34:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 13:34:56,598 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:56,598 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] [2018-11-10 13:34:56,598 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:56,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:56,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1520110799, now seen corresponding path program 1 times [2018-11-10 13:34:56,599 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:56,599 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-10 13:34:56,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:56,643 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:56,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:56,658 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:56,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:56,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:56,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:56,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:56,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:56,667 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-10 13:34:56,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:56,689 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-10 13:34:56,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:56,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-10 13:34:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:56,691 INFO L225 Difference]: With dead ends: 49 [2018-11-10 13:34:56,691 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 13:34:56,692 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:56,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 13:34:56,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 13:34:56,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:34:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-10 13:34:56,698 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 26 [2018-11-10 13:34:56,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:56,698 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-10 13:34:56,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-10 13:34:56,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 13:34:56,699 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:56,700 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] [2018-11-10 13:34:56,700 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:56,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:56,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1737260469, now seen corresponding path program 1 times [2018-11-10 13:34:56,700 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:56,701 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 [2018-11-10 13:34:56,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:56,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:56,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:56,758 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:56,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:56,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:56,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:56,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:56,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:56,769 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-10 13:34:56,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:56,795 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-10 13:34:56,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:56,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-10 13:34:56,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:56,797 INFO L225 Difference]: With dead ends: 49 [2018-11-10 13:34:56,797 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 13:34:56,797 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:56,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 13:34:56,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 13:34:56,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:34:56,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-10 13:34:56,800 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 27 [2018-11-10 13:34:56,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:56,801 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-10 13:34:56,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:56,801 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-10 13:34:56,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 13:34:56,802 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:56,802 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, 1] [2018-11-10 13:34:56,802 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:56,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:56,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1052577675, now seen corresponding path program 1 times [2018-11-10 13:34:56,802 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:56,802 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/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 [2018-11-10 13:34:56,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:56,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:56,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:56,858 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:56,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:56,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:56,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:56,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:56,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:56,868 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 4 states. [2018-11-10 13:34:56,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:56,887 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-10 13:34:56,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:56,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-11-10 13:34:56,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:56,889 INFO L225 Difference]: With dead ends: 49 [2018-11-10 13:34:56,889 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 13:34:56,889 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:56,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 13:34:56,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 13:34:56,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:34:56,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2018-11-10 13:34:56,894 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 28 [2018-11-10 13:34:56,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:56,894 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2018-11-10 13:34:56,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:56,894 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2018-11-10 13:34:56,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 13:34:56,895 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:56,895 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, 1] [2018-11-10 13:34:56,895 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:56,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:56,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1345980682, now seen corresponding path program 1 times [2018-11-10 13:34:56,896 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:56,896 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:56,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:56,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:56,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:57,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:34:57,040 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:57,047 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:57,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 13:34:57,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:34:57,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:34:57,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:34:57,048 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 9 states. [2018-11-10 13:34:57,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:57,311 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-11-10 13:34:57,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:34:57,312 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-11-10 13:34:57,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:57,313 INFO L225 Difference]: With dead ends: 43 [2018-11-10 13:34:57,313 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 13:34:57,313 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 13:34:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 13:34:57,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 33. [2018-11-10 13:34:57,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 13:34:57,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2018-11-10 13:34:57,318 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 28 [2018-11-10 13:34:57,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:57,319 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2018-11-10 13:34:57,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:34:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2018-11-10 13:34:57,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-10 13:34:57,320 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:57,320 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:34:57,320 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:57,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:57,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1524072879, now seen corresponding path program 1 times [2018-11-10 13:34:57,321 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:57,321 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:57,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:57,371 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 13:34:57,385 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:57,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:57,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:57,398 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:57,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:57,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:57,398 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 4 states. [2018-11-10 13:34:57,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:57,424 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-11-10 13:34:57,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:57,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-11-10 13:34:57,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:57,425 INFO L225 Difference]: With dead ends: 46 [2018-11-10 13:34:57,425 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 13:34:57,426 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 13:34:57,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 13:34:57,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:34:57,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-10 13:34:57,430 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 33 [2018-11-10 13:34:57,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:57,431 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-10 13:34:57,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:57,431 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-10 13:34:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-10 13:34:57,432 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:57,432 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2018-11-10 13:34:57,432 INFO L424 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:57,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:57,432 INFO L82 PathProgramCache]: Analyzing trace with hash -828081117, now seen corresponding path program 1 times [2018-11-10 13:34:57,433 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:57,433 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:57,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:57,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 13:34:57,492 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:57,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:57,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:57,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:57,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:57,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:57,503 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 4 states. [2018-11-10 13:34:57,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:57,516 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-11-10 13:34:57,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:57,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-10 13:34:57,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:57,517 INFO L225 Difference]: With dead ends: 49 [2018-11-10 13:34:57,517 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 13:34:57,517 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 13:34:57,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2018-11-10 13:34:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:34:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2018-11-10 13:34:57,520 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 34 [2018-11-10 13:34:57,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:57,520 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2018-11-10 13:34:57,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:57,521 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2018-11-10 13:34:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 13:34:57,521 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:57,521 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2018-11-10 13:34:57,521 INFO L424 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:57,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:57,521 INFO L82 PathProgramCache]: Analyzing trace with hash 416837418, now seen corresponding path program 1 times [2018-11-10 13:34:57,522 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:57,522 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:57,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:57,571 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:57,635 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 13:34:57,635 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:57,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:57,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:34:57,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:34:57,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:34:57,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:34:57,643 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand 5 states. [2018-11-10 13:34:57,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:57,765 INFO L93 Difference]: Finished difference Result 47 states and 53 transitions. [2018-11-10 13:34:57,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:34:57,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-11-10 13:34:57,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:57,766 INFO L225 Difference]: With dead ends: 47 [2018-11-10 13:34:57,766 INFO L226 Difference]: Without dead ends: 36 [2018-11-10 13:34:57,767 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:34:57,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-10 13:34:57,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-10 13:34:57,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:34:57,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-11-10 13:34:57,769 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 35 [2018-11-10 13:34:57,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:57,770 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-11-10 13:34:57,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:34:57,770 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-11-10 13:34:57,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 13:34:57,771 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:57,771 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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] [2018-11-10 13:34:57,771 INFO L424 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:57,771 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:57,771 INFO L82 PathProgramCache]: Analyzing trace with hash 1117901996, now seen corresponding path program 1 times [2018-11-10 13:34:57,772 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:57,772 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:57,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:57,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 13:34:57,928 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:57,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:57,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-10 13:34:57,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-10 13:34:57,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-10 13:34:57,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-10 13:34:57,936 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 10 states. [2018-11-10 13:34:58,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:58,111 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2018-11-10 13:34:58,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-10 13:34:58,111 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2018-11-10 13:34:58,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:58,112 INFO L225 Difference]: With dead ends: 43 [2018-11-10 13:34:58,112 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 13:34:58,113 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2018-11-10 13:34:58,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 13:34:58,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 13:34:58,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 13:34:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-10 13:34:58,115 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 35 [2018-11-10 13:34:58,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:58,116 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-10 13:34:58,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-10 13:34:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-10 13:34:58,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-10 13:34:58,116 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:58,117 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2018-11-10 13:34:58,117 INFO L424 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:58,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:58,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1904022989, now seen corresponding path program 1 times [2018-11-10 13:34:58,118 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:58,118 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:58,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:58,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 13:34:58,183 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:58,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:58,191 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:58,191 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:58,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:58,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:58,191 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2018-11-10 13:34:58,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:58,198 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2018-11-10 13:34:58,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:58,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-11-10 13:34:58,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:58,199 INFO L225 Difference]: With dead ends: 46 [2018-11-10 13:34:58,199 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 13:34:58,199 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:58,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 13:34:58,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-10 13:34:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 13:34:58,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-10 13:34:58,202 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 35 [2018-11-10 13:34:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:58,202 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-10 13:34:58,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-10 13:34:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 13:34:58,202 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:58,202 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1] [2018-11-10 13:34:58,203 INFO L424 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:58,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:58,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2072094681, now seen corresponding path program 1 times [2018-11-10 13:34:58,204 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:58,204 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:58,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:58,247 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-10 13:34:58,255 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:58,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:58,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:34:58,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:34:58,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:34:58,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:58,263 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 4 states. [2018-11-10 13:34:58,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:58,272 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2018-11-10 13:34:58,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:34:58,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-11-10 13:34:58,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:58,273 INFO L225 Difference]: With dead ends: 46 [2018-11-10 13:34:58,274 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 13:34:58,274 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:34:58,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 13:34:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-11-10 13:34:58,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 13:34:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-11-10 13:34:58,277 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 36 [2018-11-10 13:34:58,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:58,277 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-11-10 13:34:58,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:34:58,277 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-11-10 13:34:58,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-10 13:34:58,278 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:34:58,278 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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, 1] [2018-11-10 13:34:58,278 INFO L424 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:34:58,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:34:58,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1929469608, now seen corresponding path program 1 times [2018-11-10 13:34:58,279 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:34:58,279 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2018-11-10 13:34:58,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:34:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:34:58,333 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:34:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-10 13:34:58,425 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:34:58,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:34:58,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-10 13:34:58,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:34:58,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:34:58,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:34:58,433 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 9 states. [2018-11-10 13:34:58,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:34:58,552 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2018-11-10 13:34:58,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 13:34:58,553 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-11-10 13:34:58,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:34:58,553 INFO L225 Difference]: With dead ends: 33 [2018-11-10 13:34:58,553 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:34:58,554 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-10 13:34:58,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:34:58,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:34:58,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:34:58,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:34:58,554 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-10 13:34:58,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:34:58,554 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:34:58,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:34:58,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:34:58,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:34:58,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:34:58,657 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 44) no Hoare annotation was computed. [2018-11-10 13:34:58,657 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 44) the Hoare annotation is: true [2018-11-10 13:34:58,657 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 44) no Hoare annotation was computed. [2018-11-10 13:34:58,657 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:34:58,657 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:34:58,658 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:34:58,658 INFO L428 ceAbstractionStarter]: At program point fmin_floatENTRY(lines 34 41) the Hoare annotation is: true [2018-11-10 13:34:58,658 INFO L425 ceAbstractionStarter]: For program point fmin_floatEXIT(lines 34 41) no Hoare annotation was computed. [2018-11-10 13:34:58,658 INFO L425 ceAbstractionStarter]: For program point fmin_floatFINAL(lines 34 41) no Hoare annotation was computed. [2018-11-10 13:34:58,658 INFO L425 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-10 13:34:58,658 INFO L425 ceAbstractionStarter]: For program point L40-2(line 40) no Hoare annotation was computed. [2018-11-10 13:34:58,658 INFO L421 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: (and (= fmin_float_~x |fmin_float_#in~x|) (= fmin_float_~y |fmin_float_#in~y|)) [2018-11-10 13:34:58,658 INFO L425 ceAbstractionStarter]: For program point L37-1(lines 37 38) no Hoare annotation was computed. [2018-11-10 13:34:58,658 INFO L421 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (= fmin_float_~x |fmin_float_#in~x|) (= fmin_float_~y |fmin_float_#in~y|)) [2018-11-10 13:34:58,658 INFO L425 ceAbstractionStarter]: For program point L35-1(lines 35 36) no Hoare annotation was computed. [2018-11-10 13:34:58,659 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:34:58,659 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:34:58,659 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:34:58,659 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:34:58,659 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 46 64) the Hoare annotation is: true [2018-11-10 13:34:58,659 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 46 64) no Hoare annotation was computed. [2018-11-10 13:34:58,659 INFO L425 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2018-11-10 13:34:58,659 INFO L421 ceAbstractionStarter]: At program point L58(line 58) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~res~0) (= .cse0 main_~y~0))) [2018-11-10 13:34:58,659 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 61) no Hoare annotation was computed. [2018-11-10 13:34:58,660 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 46 64) no Hoare annotation was computed. [2018-11-10 13:34:58,660 INFO L421 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= .cse0 main_~y~0))) [2018-11-10 13:34:58,660 INFO L425 ceAbstractionStarter]: For program point L56-1(line 56) no Hoare annotation was computed. [2018-11-10 13:34:58,660 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2018-11-10 13:34:58,660 INFO L425 ceAbstractionStarter]: For program point __fpclassify_floatFINAL(lines 11 32) no Hoare annotation was computed. [2018-11-10 13:34:58,660 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-10 13:34:58,660 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 31) no Hoare annotation was computed. [2018-11-10 13:34:58,660 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 31) no Hoare annotation was computed. [2018-11-10 13:34:58,660 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-10 13:34:58,661 INFO L428 ceAbstractionStarter]: At program point __fpclassify_floatENTRY(lines 11 32) the Hoare annotation is: true [2018-11-10 13:34:58,661 INFO L428 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: true [2018-11-10 13:34:58,661 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 11 32) no Hoare annotation was computed. [2018-11-10 13:34:58,661 INFO L425 ceAbstractionStarter]: For program point __fpclassify_floatEXIT(lines 11 32) no Hoare annotation was computed. [2018-11-10 13:34:58,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:34:58 BoogieIcfgContainer [2018-11-10 13:34:58,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:34:58,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:34:58,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:34:58,666 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:34:58,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:34:56" (3/4) ... [2018-11-10 13:34:58,669 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:34:58,680 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-10 13:34:58,680 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:34:58,680 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fmin_float [2018-11-10 13:34:58,680 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:34:58,680 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2018-11-10 13:34:58,685 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2018-11-10 13:34:58,685 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-10 13:34:58,686 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 13:34:58,719 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_99fdfb44-9a99-474b-91ee-69b3691c50d5/bin-2019/utaipan/witness.graphml [2018-11-10 13:34:58,719 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:34:58,719 INFO L168 Benchmark]: Toolchain (without parser) took 3006.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.9 MB). Free memory was 947.9 MB in the beginning and 1.2 GB in the end (delta: -243.3 MB). Peak memory consumption was 289.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:58,720 INFO L168 Benchmark]: CDTParser took 0.13 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. [2018-11-10 13:34:58,721 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.28 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 937.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:58,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.73 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:58,721 INFO L168 Benchmark]: Boogie Preprocessor took 24.32 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:34:58,721 INFO L168 Benchmark]: RCFGBuilder took 266.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:58,722 INFO L168 Benchmark]: TraceAbstraction took 2455.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 803.8 MB in the end (delta: 305.5 MB). Peak memory consumption was 305.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:58,722 INFO L168 Benchmark]: Witness Printer took 52.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 803.8 MB in the beginning and 1.2 GB in the end (delta: -387.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:34:58,723 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.28 ms. Allocated memory is still 1.0 GB. Free memory was 947.9 MB in the beginning and 937.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.73 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.32 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 266.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2455.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 803.8 MB in the end (delta: 305.5 MB). Peak memory consumption was 305.5 MB. Max. memory is 11.5 GB. * Witness Printer took 52.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 803.8 MB in the beginning and 1.2 GB in the end (delta: -387.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: 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: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 37 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 13 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 497 SDtfs, 31 SDslu, 1314 SDs, 0 SdLazy, 218 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 13 MinimizatonAttempts, 19 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 28 PreInvPairs, 33 NumberOfFragments, 48 HoareAnnotationTreeSize, 28 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 402 NumberOfCodeBlocks, 402 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 389 ConstructedInterpolants, 3 QuantifiedInterpolants, 21389 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1357 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 42/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...