./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_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_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/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 fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 ............................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/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 fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:25:43,113 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:25:43,114 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:25:43,125 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:25:43,125 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:25:43,126 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:25:43,127 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:25:43,128 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:25:43,130 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:25:43,130 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:25:43,131 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:25:43,131 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:25:43,132 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:25:43,133 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:25:43,134 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:25:43,134 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:25:43,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:25:43,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:25:43,138 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:25:43,140 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:25:43,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:25:43,141 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:25:43,143 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:25:43,143 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:25:43,144 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:25:43,144 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:25:43,145 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:25:43,146 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:25:43,147 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:25:43,148 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:25:43,148 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:25:43,148 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:25:43,149 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:25:43,149 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:25:43,150 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:25:43,150 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:25:43,151 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 11:25:43,162 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:25:43,162 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:25:43,163 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:25:43,163 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:25:43,163 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:25:43,164 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:25:43,164 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 11:25:43,164 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:25:43,164 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 11:25:43,164 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 11:25:43,164 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:25:43,165 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:25:43,165 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:25:43,165 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:25:43,166 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:25:43,166 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:25:43,166 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:25:43,166 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:25:43,166 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:25:43,166 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:25:43,166 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:25:43,167 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:25:43,167 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:25:43,167 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:25:43,167 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:25:43,167 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:25:43,167 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:25:43,168 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:25:43,168 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:25:43,168 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:25:43,168 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 11:25:43,168 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:25:43,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:25:43,169 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 11:25:43,169 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_168e9a58-a009-4727-b60e-a40ae51872e2/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 -> fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 [2018-11-10 11:25:43,198 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:25:43,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:25:43,213 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:25:43,214 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:25:43,215 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:25:43,215 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-11-10 11:25:43,268 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data/568852050/971c1e31dbca40919d93219c9d80e574/FLAG00cc17597 [2018-11-10 11:25:43,628 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:25:43,629 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-11-10 11:25:43,637 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data/568852050/971c1e31dbca40919d93219c9d80e574/FLAG00cc17597 [2018-11-10 11:25:43,650 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data/568852050/971c1e31dbca40919d93219c9d80e574 [2018-11-10 11:25:43,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:25:43,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:25:43,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:25:43,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:25:43,658 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:25:43,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43862a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43, skipping insertion in model container [2018-11-10 11:25:43,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:25:43,693 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:25:43,829 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:25:43,831 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:25:43,853 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:25:43,869 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:25:43,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43 WrapperNode [2018-11-10 11:25:43,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:25:43,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:25:43,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:25:43,870 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:25:43,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,883 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:25:43,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:25:43,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:25:43,901 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:25:43,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... [2018-11-10 11:25:43,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:25:43,926 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:25:43,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:25:43,926 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:25:43,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/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 11:25:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:25:44,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:25:44,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:25:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:25:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-10 11:25:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-10 11:25:44,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:25:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:25:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-10 11:25:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-10 11:25:44,304 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:25:44,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:25:44 BoogieIcfgContainer [2018-11-10 11:25:44,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:25:44,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:25:44,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:25:44,307 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:25:44,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:25:43" (1/3) ... [2018-11-10 11:25:44,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e2ba1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:25:44, skipping insertion in model container [2018-11-10 11:25:44,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:43" (2/3) ... [2018-11-10 11:25:44,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e2ba1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:25:44, skipping insertion in model container [2018-11-10 11:25:44,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:25:44" (3/3) ... [2018-11-10 11:25:44,310 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b_true-unreach-call.c [2018-11-10 11:25:44,316 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:25:44,322 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:25:44,335 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:25:44,361 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:25:44,361 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:25:44,361 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:25:44,361 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:25:44,361 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:25:44,362 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:25:44,362 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:25:44,362 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:25:44,375 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-10 11:25:44,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 11:25:44,379 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:25:44,380 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 11:25:44,382 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:25:44,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:25:44,386 INFO L82 PathProgramCache]: Analyzing trace with hash 2137295797, now seen corresponding path program 1 times [2018-11-10 11:25:44,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:25:44,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:25:44,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:25:44,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:25:44,426 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:25:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:25:44,499 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 11:25:44,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:25:44,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:25:44,501 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 11:25:44,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:25:44,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:25:44,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:25:44,523 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-10 11:25:44,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:25:44,542 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-11-10 11:25:44,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:25:44,543 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-10 11:25:44,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:25:44,552 INFO L225 Difference]: With dead ends: 66 [2018-11-10 11:25:44,552 INFO L226 Difference]: Without dead ends: 33 [2018-11-10 11:25:44,554 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 11:25:44,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-10 11:25:44,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-10 11:25:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 11:25:44,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-10 11:25:44,593 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2018-11-10 11:25:44,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:25:44,593 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-10 11:25:44,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:25:44,593 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-10 11:25:44,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:25:44,594 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:25:44,595 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 11:25:44,595 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:25:44,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:25:44,595 INFO L82 PathProgramCache]: Analyzing trace with hash 428472476, now seen corresponding path program 1 times [2018-11-10 11:25:44,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 11:25:44,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:25:44,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:25:44,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:25:44,597 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 11:25:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:25:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:25:44,731 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 11:25:44,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,746 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,746 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,747 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,747 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,747 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,748 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,748 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,748 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,748 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,749 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,749 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,749 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,750 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,750 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,750 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,750 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,751 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,751 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,751 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,752 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,752 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,752 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,752 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,753 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,753 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,754 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,754 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,754 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,754 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,755 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,755 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,755 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,756 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,756 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,756 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,756 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,757 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,757 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-11-10 11:25:44,757 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 11:25:44,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:25:44 BoogieIcfgContainer [2018-11-10 11:25:44,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:25:44,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:25:44,776 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:25:44,776 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:25:44,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:25:44" (3/4) ... [2018-11-10 11:25:44,780 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 11:25:44,780 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:25:44,781 INFO L168 Benchmark]: Toolchain (without parser) took 1127.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 959.2 MB in the beginning and 1.0 GB in the end (delta: -88.7 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:44,783 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:25:44,783 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.61 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:44,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.59 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:44,784 INFO L168 Benchmark]: Boogie Preprocessor took 25.61 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:44,785 INFO L168 Benchmark]: RCFGBuilder took 378.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -148.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:44,786 INFO L168 Benchmark]: TraceAbstraction took 469.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:44,786 INFO L168 Benchmark]: Witness Printer took 4.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:25:44,789 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 214.61 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 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 30.59 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.61 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 378.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -148.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 469.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 43.6 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.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.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseAnd at line 50. Possible FailurePath: [L61] float x = -1.0f / 0.0f; [L62] CALL, EXPR trunc_float(x) [L12] __int32_t signbit, w, exponent_less_127; [L14] CALL ieee_float_shape_type gf_u; [L14] RET ieee_float_shape_type gf_u; [L15] CALL gf_u.value = (x) [L15] RET gf_u.value = (x) [L16] CALL, EXPR gf_u.word [L16] RET, EXPR gf_u.word [L16] (w) = gf_u.word [L16] RET (w) = gf_u.word [L17] COND FALSE !(0) [L18] signbit = w & 0x80000000 [L19] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L20] COND FALSE !(exponent_less_127 < 23) [L36] COND TRUE exponent_less_127 == 255 [L37] RET return x + x; [L62] EXPR trunc_float(x) VAL [trunc_float(x)=10737418241, x=10737418247] [L62] float res = trunc_float(x); [L65] CALL, EXPR isinf_float(res) [L44] __int32_t ix; [L46] CALL ieee_float_shape_type gf_u; [L46] RET ieee_float_shape_type gf_u; [L47] CALL gf_u.value = (x) [L47] RET gf_u.value = (x) [L48] CALL, EXPR gf_u.word [L48] RET, EXPR gf_u.word [L48] (ix) = gf_u.word [L48] RET (ix) = gf_u.word [L49] COND FALSE !(0) [L50] ix &= 0x7fffffff [L51] RET return ((ix) == 0x7f800000L); [L65] EXPR isinf_float(res) VAL [isinf_float(res)=0, res=10737418241, x=10737418247] [L65] COND TRUE !isinf_float(res) [L66] __VERIFIER_error() VAL [res=10737418241, x=10737418247] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 11:25:46,481 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:25:46,483 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:25:46,494 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:25:46,494 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:25:46,495 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:25:46,496 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:25:46,497 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:25:46,499 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:25:46,499 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:25:46,500 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:25:46,500 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:25:46,501 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:25:46,502 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:25:46,503 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:25:46,504 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:25:46,505 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:25:46,506 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:25:46,507 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:25:46,509 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:25:46,510 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:25:46,511 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:25:46,513 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:25:46,513 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:25:46,513 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:25:46,514 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:25:46,515 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:25:46,515 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:25:46,516 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:25:46,517 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:25:46,517 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:25:46,518 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:25:46,518 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:25:46,518 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:25:46,519 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:25:46,520 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:25:46,520 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 11:25:46,532 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:25:46,533 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:25:46,533 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:25:46,534 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 11:25:46,534 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 11:25:46,534 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 11:25:46,534 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 11:25:46,534 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 11:25:46,535 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:25:46,535 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 11:25:46,535 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 11:25:46,536 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:25:46,536 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:25:46,536 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:25:46,536 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:25:46,536 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 11:25:46,537 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 11:25:46,537 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 11:25:46,537 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:25:46,537 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:25:46,537 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:25:46,538 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:25:46,538 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:25:46,538 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:25:46,538 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:25:46,538 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:25:46,538 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:25:46,539 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:25:46,539 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 11:25:46,539 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:25:46,539 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 11:25:46,539 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 11:25:46,540 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_168e9a58-a009-4727-b60e-a40ae51872e2/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 -> fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 [2018-11-10 11:25:46,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:25:46,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:25:46,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:25:46,589 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:25:46,589 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:25:46,590 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-11-10 11:25:46,645 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data/7c7b81ae0/cc9fbc50c5804d39959ded686a6343ef/FLAGcf29ca8ea [2018-11-10 11:25:46,994 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:25:46,994 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/sv-benchmarks/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-11-10 11:25:46,999 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data/7c7b81ae0/cc9fbc50c5804d39959ded686a6343ef/FLAGcf29ca8ea [2018-11-10 11:25:47,010 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/data/7c7b81ae0/cc9fbc50c5804d39959ded686a6343ef [2018-11-10 11:25:47,013 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:25:47,014 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 11:25:47,015 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:25:47,015 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:25:47,017 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:25:47,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526b064b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47, skipping insertion in model container [2018-11-10 11:25:47,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:25:47,047 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:25:47,201 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:25:47,206 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:25:47,227 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:25:47,252 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:25:47,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47 WrapperNode [2018-11-10 11:25:47,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:25:47,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 11:25:47,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 11:25:47,253 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 11:25:47,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 11:25:47,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:25:47,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:25:47,288 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:25:47,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... [2018-11-10 11:25:47,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:25:47,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:25:47,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:25:47,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:25:47,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/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 11:25:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:25:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:25:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:25:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:25:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-10 11:25:47,418 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-10 11:25:47,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:25:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:25:47,419 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-10 11:25:47,419 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-10 11:25:47,579 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:25:47,645 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 11:25:47,795 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:25:47,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:25:47 BoogieIcfgContainer [2018-11-10 11:25:47,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:25:47,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:25:47,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:25:47,799 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:25:47,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:25:47" (1/3) ... [2018-11-10 11:25:47,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b938516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:25:47, skipping insertion in model container [2018-11-10 11:25:47,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:25:47" (2/3) ... [2018-11-10 11:25:47,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b938516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:25:47, skipping insertion in model container [2018-11-10 11:25:47,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:25:47" (3/3) ... [2018-11-10 11:25:47,802 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b_true-unreach-call.c [2018-11-10 11:25:47,809 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:25:47,815 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 11:25:47,826 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 11:25:47,847 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:25:47,848 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:25:47,848 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:25:47,848 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:25:47,848 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:25:47,848 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:25:47,848 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:25:47,849 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:25:47,849 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:25:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-10 11:25:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 11:25:47,869 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:25:47,869 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] [2018-11-10 11:25:47,871 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:25:47,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:25:47,877 INFO L82 PathProgramCache]: Analyzing trace with hash 2111365157, now seen corresponding path program 1 times [2018-11-10 11:25:47,880 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:25:47,880 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/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 11:25:47,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:25:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:25:47,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:25:47,965 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 11:25:47,965 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:25:47,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:25:47,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 11:25:47,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 11:25:47,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 11:25:47,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 11:25:47,990 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-10 11:25:48,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:25:48,007 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-11-10 11:25:48,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 11:25:48,008 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-10 11:25:48,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:25:48,014 INFO L225 Difference]: With dead ends: 64 [2018-11-10 11:25:48,014 INFO L226 Difference]: Without dead ends: 32 [2018-11-10 11:25:48,017 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 11:25:48,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-10 11:25:48,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-10 11:25:48,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 11:25:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-11-10 11:25:48,049 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 23 [2018-11-10 11:25:48,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:25:48,050 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-11-10 11:25:48,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 11:25:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-10 11:25:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-10 11:25:48,051 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:25:48,051 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 11:25:48,052 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:25:48,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:25:48,053 INFO L82 PathProgramCache]: Analyzing trace with hash 340228539, now seen corresponding path program 1 times [2018-11-10 11:25:48,054 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:25:48,054 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/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 11:25:48,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:25:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:25:48,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:25:48,273 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 11:25:48,273 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:25:48,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:25:48,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 11:25:48,293 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 11:25:48,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 11:25:48,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 11:25:48,294 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 6 states. [2018-11-10 11:25:48,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:25:48,571 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2018-11-10 11:25:48,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 11:25:48,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-10 11:25:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:25:48,575 INFO L225 Difference]: With dead ends: 48 [2018-11-10 11:25:48,575 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 11:25:48,576 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-10 11:25:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 11:25:48,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2018-11-10 11:25:48,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-10 11:25:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-10 11:25:48,582 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 25 [2018-11-10 11:25:48,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:25:48,582 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-10 11:25:48,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 11:25:48,582 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-10 11:25:48,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 11:25:48,583 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:25:48,583 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 11:25:48,583 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:25:48,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:25:48,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1691239600, now seen corresponding path program 1 times [2018-11-10 11:25:48,584 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:25:48,584 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 11:25:48,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:25:48,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:25:48,643 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:25:48,836 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 11:25:48,837 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:25:48,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:25:48,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-10 11:25:48,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-10 11:25:48,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-10 11:25:48,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-10 11:25:48,852 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 11 states. [2018-11-10 11:25:49,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:25:49,318 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-10 11:25:49,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 11:25:49,319 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-10 11:25:49,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:25:49,320 INFO L225 Difference]: With dead ends: 40 [2018-11-10 11:25:49,320 INFO L226 Difference]: Without dead ends: 31 [2018-11-10 11:25:49,320 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-10 11:25:49,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-10 11:25:49,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-10 11:25:49,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-10 11:25:49,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-10 11:25:49,328 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2018-11-10 11:25:49,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:25:49,329 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-10 11:25:49,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-10 11:25:49,329 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-10 11:25:49,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-10 11:25:49,330 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:25:49,330 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 11:25:49,333 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 11:25:49,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:25:49,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1613159138, now seen corresponding path program 1 times [2018-11-10 11:25:49,334 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 11:25:49,334 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/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 11:25:49,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:25:49,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 11:25:49,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 11:25:49,492 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 11:25:49,492 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 11:25:49,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 11:25:49,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-10 11:25:49,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 11:25:49,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 11:25:49,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 11:25:49,503 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-11-10 11:25:49,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 11:25:49,729 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-11-10 11:25:49,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 11:25:49,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-11-10 11:25:49,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 11:25:49,731 INFO L225 Difference]: With dead ends: 31 [2018-11-10 11:25:49,731 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 11:25:49,732 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-10 11:25:49,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 11:25:49,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 11:25:49,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 11:25:49,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 11:25:49,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-11-10 11:25:49,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 11:25:49,733 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 11:25:49,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 11:25:49,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 11:25:49,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 11:25:49,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 11:25:49,879 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 11:25:49,879 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 11:25:49,879 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:25:49,879 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 43 52) the Hoare annotation is: true [2018-11-10 11:25:49,880 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 45 49) no Hoare annotation was computed. [2018-11-10 11:25:49,880 INFO L421 ceAbstractionStarter]: At program point L45-3(lines 45 49) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-10 11:25:49,880 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 43 52) no Hoare annotation was computed. [2018-11-10 11:25:49,880 INFO L425 ceAbstractionStarter]: For program point L45-4(lines 45 49) no Hoare annotation was computed. [2018-11-10 11:25:49,880 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 43 52) no Hoare annotation was computed. [2018-11-10 11:25:49,880 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 11:25:49,880 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 11:25:49,880 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 11:25:49,880 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 11:25:49,880 INFO L421 ceAbstractionStarter]: At program point L65(line 65) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= .cse0 main_~res~0))) [2018-11-10 11:25:49,881 INFO L425 ceAbstractionStarter]: For program point L65-1(lines 65 68) no Hoare annotation was computed. [2018-11-10 11:25:49,881 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 66) no Hoare annotation was computed. [2018-11-10 11:25:49,881 INFO L421 ceAbstractionStarter]: At program point L62(line 62) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-11-10 11:25:49,881 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 54 71) the Hoare annotation is: true [2018-11-10 11:25:49,881 INFO L425 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-11-10 11:25:49,881 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 54 71) no Hoare annotation was computed. [2018-11-10 11:25:49,881 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 54 71) no Hoare annotation was computed. [2018-11-10 11:25:49,881 INFO L425 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-11-10 11:25:49,881 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 27) no Hoare annotation was computed. [2018-11-10 11:25:49,882 INFO L421 ceAbstractionStarter]: At program point L23-3(lines 23 27) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd trunc_float_~exponent_less_127~0 (_ bv127 32)) (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32))))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))))) [2018-11-10 11:25:49,882 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2018-11-10 11:25:49,882 INFO L425 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 11 40) no Hoare annotation was computed. [2018-11-10 11:25:49,882 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 38) no Hoare annotation was computed. [2018-11-10 11:25:49,882 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 38) no Hoare annotation was computed. [2018-11-10 11:25:49,882 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2018-11-10 11:25:49,883 INFO L421 ceAbstractionStarter]: At program point L29-3(lines 29 33) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd trunc_float_~exponent_less_127~0 (_ bv127 32)) (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32))))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand trunc_float_~w~0 (_ bv2139095040 32)) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))))) [2018-11-10 11:25:49,883 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 34) no Hoare annotation was computed. [2018-11-10 11:25:49,883 INFO L428 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 11 40) the Hoare annotation is: true [2018-11-10 11:25:49,883 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2018-11-10 11:25:49,883 INFO L421 ceAbstractionStarter]: At program point L13-3(lines 13 17) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-10 11:25:49,883 INFO L425 ceAbstractionStarter]: For program point L13-4(lines 13 17) no Hoare annotation was computed. [2018-11-10 11:25:49,883 INFO L425 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 11 40) no Hoare annotation was computed. [2018-11-10 11:25:49,893 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,894 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,894 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,895 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,895 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,895 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,895 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,896 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,896 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,897 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,897 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,897 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,897 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,898 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,898 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,898 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,899 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,900 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,900 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,900 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,901 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,901 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,901 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,901 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,902 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,902 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,902 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,902 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:25:49 BoogieIcfgContainer [2018-11-10 11:25:49,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:25:49,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:25:49,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:25:49,906 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:25:49,906 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:25:47" (3/4) ... [2018-11-10 11:25:49,909 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 11:25:49,914 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 11:25:49,914 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-10 11:25:49,915 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 11:25:49,915 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-10 11:25:49,919 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 66 nodes and edges [2018-11-10 11:25:49,919 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-11-10 11:25:49,920 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 11:25:49,940 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-10 11:25:49,940 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-10 11:25:49,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) [2018-11-10 11:25:49,941 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) [2018-11-10 11:25:49,969 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_168e9a58-a009-4727-b60e-a40ae51872e2/bin-2019/utaipan/witness.graphml [2018-11-10 11:25:49,970 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:25:49,970 INFO L168 Benchmark]: Toolchain (without parser) took 2957.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 949.7 MB in the beginning and 947.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 150.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:49,971 INFO L168 Benchmark]: CDTParser took 0.20 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 11:25:49,972 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.90 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:49,972 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.79 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:25:49,972 INFO L168 Benchmark]: Boogie Preprocessor took 34.81 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:25:49,972 INFO L168 Benchmark]: RCFGBuilder took 472.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:49,973 INFO L168 Benchmark]: TraceAbstraction took 2108.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.5 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:49,973 INFO L168 Benchmark]: Witness Printer took 64.51 ms. Allocated memory is still 1.2 GB. Free memory was 954.5 MB in the beginning and 947.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-10 11:25:49,974 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 237.90 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.79 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.81 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 472.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2108.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.5 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. * Witness Printer took 64.51 ms. Allocated memory is still 1.2 GB. Free memory was 954.5 MB in the beginning and 947.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 66]: 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: 45]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 23]: Loop Invariant [2018-11-10 11:25:49,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,979 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,980 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,981 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,982 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 29]: Loop Invariant [2018-11-10 11:25:49,983 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,984 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,985 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,986 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,987 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-10 11:25:49,987 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(exponent_less_127, 127bv32) == ~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(trunc_float_~w~0, 2139095040bv32), 23bv32), 4294967169bv32), 23bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 74 SDslu, 320 SDs, 0 SdLazy, 135 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 146 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 11 QuantifiedInterpolants, 11993 SizeOfPredicates, 28 NumberOfNonLiveVariables, 383 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...