./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bbea5fc7c8725f5cbc8325b1d09f091d3964966d ................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bbea5fc7c8725f5cbc8325b1d09f091d3964966d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:44:05,228 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:44:05,229 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:44:05,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 03:44:05,236 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 03:44:05,237 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 03:44:05,238 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 03:44:05,238 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 03:44:05,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 03:44:05,239 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 03:44:05,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 03:44:05,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:44:05,240 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:44:05,241 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:44:05,241 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:44:05,242 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:44:05,242 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:44:05,243 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:44:05,244 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:44:05,245 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:44:05,245 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:44:05,246 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:44:05,247 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:44:05,247 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:44:05,247 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:44:05,248 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:44:05,248 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:44:05,249 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:44:05,249 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:44:05,250 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:44:05,250 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:44:05,250 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:44:05,251 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:44:05,251 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:44:05,251 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:44:05,252 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:44:05,252 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 03:44:05,261 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:44:05,261 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:44:05,261 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:44:05,262 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:44:05,262 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:44:05,262 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:44:05,262 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:44:05,262 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 03:44:05,262 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:44:05,263 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:44:05,263 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 03:44:05,263 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 03:44:05,263 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:44:05,264 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:44:05,264 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:44:05,264 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 03:44:05,264 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:44:05,264 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:44:05,264 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:44:05,265 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:44:05,265 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:44:05,265 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:44:05,265 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:44:05,265 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:44:05,265 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:44:05,265 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:44:05,266 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:44:05,266 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:44:05,266 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:44:05,266 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:44:05,266 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:44:05,266 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:44:05,267 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 03:44:05,267 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:44:05,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 03:44:05,267 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 03:44:05,267 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_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbea5fc7c8725f5cbc8325b1d09f091d3964966d [2018-12-03 03:44:05,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:44:05,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:44:05,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:44:05,303 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:44:05,304 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:44:05,304 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c [2018-12-03 03:44:05,345 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data/590c9a438/913c76e8aae041418654e69e00e3c062/FLAG63b0f9c5b [2018-12-03 03:44:05,789 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:44:05,790 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c [2018-12-03 03:44:05,793 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data/590c9a438/913c76e8aae041418654e69e00e3c062/FLAG63b0f9c5b [2018-12-03 03:44:05,802 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data/590c9a438/913c76e8aae041418654e69e00e3c062 [2018-12-03 03:44:05,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:44:05,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:44:05,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:44:05,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:44:05,807 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:44:05,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:05,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59ddcec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05, skipping insertion in model container [2018-12-03 03:44:05,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:05,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:44:05,827 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:44:05,930 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:44:05,932 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:44:05,953 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:44:05,965 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:44:05,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05 WrapperNode [2018-12-03 03:44:05,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:44:05,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:44:05,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:44:05,966 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:44:06,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:44:06,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:44:06,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:44:06,011 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:44:06,017 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... [2018-12-03 03:44:06,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:44:06,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:44:06,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:44:06,033 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:44:06,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/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 [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:44:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-03 03:44:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-03 03:44:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:44:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:44:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 03:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:44:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:44:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 03:44:06,240 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:44:06,240 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-03 03:44:06,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:44:06 BoogieIcfgContainer [2018-12-03 03:44:06,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:44:06,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:44:06,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:44:06,243 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:44:06,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:44:05" (1/3) ... [2018-12-03 03:44:06,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74952ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:44:06, skipping insertion in model container [2018-12-03 03:44:06,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:05" (2/3) ... [2018-12-03 03:44:06,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74952ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:44:06, skipping insertion in model container [2018-12-03 03:44:06,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:44:06" (3/3) ... [2018-12-03 03:44:06,245 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d_true-unreach-call.c [2018-12-03 03:44:06,250 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:44:06,255 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:44:06,263 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:44:06,286 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:44:06,287 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:44:06,287 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:44:06,287 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:44:06,287 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:44:06,287 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:44:06,287 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:44:06,287 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:44:06,297 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-03 03:44:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 03:44:06,300 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:44:06,300 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:44:06,302 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:44:06,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:44:06,305 INFO L82 PathProgramCache]: Analyzing trace with hash -661893902, now seen corresponding path program 1 times [2018-12-03 03:44:06,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:44:06,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:44:06,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:44:06,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:44:06,334 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:44:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:44:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:44:06,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:44:06,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 03:44:06,392 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 03:44:06,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 03:44:06,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 03:44:06,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:44:06,404 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-12-03 03:44:06,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:44:06,422 INFO L93 Difference]: Finished difference Result 92 states and 135 transitions. [2018-12-03 03:44:06,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 03:44:06,423 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-12-03 03:44:06,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:44:06,430 INFO L225 Difference]: With dead ends: 92 [2018-12-03 03:44:06,430 INFO L226 Difference]: Without dead ends: 46 [2018-12-03 03:44:06,432 INFO L631 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 [2018-12-03 03:44:06,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-03 03:44:06,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-03 03:44:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-03 03:44:06,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2018-12-03 03:44:06,455 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 25 [2018-12-03 03:44:06,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:44:06,456 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2018-12-03 03:44:06,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 03:44:06,456 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-12-03 03:44:06,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-03 03:44:06,456 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:44:06,456 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:44:06,457 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:44:06,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:44:06,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1235447049, now seen corresponding path program 1 times [2018-12-03 03:44:06,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 03:44:06,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:44:06,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:44:06,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 03:44:06,458 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 03:44:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:44:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 03:44:06,536 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 03:44:06,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:44:06 BoogieIcfgContainer [2018-12-03 03:44:06,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:44:06,554 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:44:06,554 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:44:06,555 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:44:06,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:44:06" (3/4) ... [2018-12-03 03:44:06,557 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 03:44:06,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:44:06,558 INFO L168 Benchmark]: Toolchain (without parser) took 753.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -67.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:06,558 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:44:06,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.23 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 936.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:06,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:06,559 INFO L168 Benchmark]: Boogie Preprocessor took 21.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:06,560 INFO L168 Benchmark]: RCFGBuilder took 207.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:06,560 INFO L168 Benchmark]: TraceAbstraction took 313.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:06,560 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:44:06,562 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.23 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 936.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 207.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 313.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 ms. Allocated memory is still 1.1 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 108]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 38, overapproximation of bitwiseOr at line 90, overapproximation of someBinaryArithmeticDOUBLEoperation at line 103, overapproximation of bitwiseAnd at line 89. Possible FailurePath: [L14] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418248, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = -1.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418250] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, x=10737418250] [L26] COND TRUE j0 < 20 VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=10737418250] [L27] COND FALSE !(j0 < 0) [L38] i = (0x000fffff) >> j0 VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=10737418250] [L39] COND TRUE ((i0 & i) | i1) == 0 [L40] return x; VAL [\old(x)=10737418250, \result=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=2, j0=0, x=10737418250] [L104] RET, EXPR ceil_double(x) VAL [ceil_double(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418250] [L104] double res = ceil_double(x); [L107] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L82] __int32_t hx, lx; VAL [\old(x)=10737418250, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418250] [L84] ieee_double_shape_type ew_u; [L85] ew_u.value = (x) [L86] EXPR ew_u.parts.msw [L86] (hx) = ew_u.parts.msw [L87] EXPR ew_u.parts.lsw [L87] (lx) = ew_u.parts.lsw [L89] hx &= 0x7fffffff [L90] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L91] hx = 0x7ff00000 - hx [L92] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418250, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, lx=-2147483648, x=10737418250] [L107] RET, EXPR isinf_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=10737418250, x=10737418250] [L107] COND TRUE !isinf_double(res) [L108] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418250, x=10737418250] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-03 03:44:07,948 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 03:44:07,949 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 03:44:07,955 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-03 03:44:07,959 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 03:44:07,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 03:44:07,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 03:44:07,960 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 03:44:07,961 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 03:44:07,961 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 03:44:07,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 03:44:07,963 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 03:44:07,963 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 03:44:07,964 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 03:44:07,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 03:44:07,965 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 03:44:07,966 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 03:44:07,966 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 03:44:07,966 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 03:44:07,967 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 03:44:07,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 03:44:07,967 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 03:44:07,968 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 03:44:07,968 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 03:44:07,968 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 03:44:07,968 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 03:44:07,969 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 03:44:07,969 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 03:44:07,969 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 03:44:07,970 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 03:44:07,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 03:44:07,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 03:44:07,977 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 03:44:07,977 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 03:44:07,978 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 03:44:07,978 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 03:44:07,978 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 03:44:07,978 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 03:44:07,978 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 03:44:07,978 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 03:44:07,978 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 03:44:07,978 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 03:44:07,979 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 03:44:07,979 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 03:44:07,980 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 03:44:07,980 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 03:44:07,981 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_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbea5fc7c8725f5cbc8325b1d09f091d3964966d [2018-12-03 03:44:07,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 03:44:08,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 03:44:08,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 03:44:08,012 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 03:44:08,013 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 03:44:08,013 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c [2018-12-03 03:44:08,050 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data/3b13b9cab/2ca95da17df34ff6a11786d9630bdffc/FLAGb2cde01b6 [2018-12-03 03:44:08,356 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 03:44:08,357 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/sv-benchmarks/c/float-newlib/double_req_bl_1092d_true-unreach-call.c [2018-12-03 03:44:08,361 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data/3b13b9cab/2ca95da17df34ff6a11786d9630bdffc/FLAGb2cde01b6 [2018-12-03 03:44:08,369 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/data/3b13b9cab/2ca95da17df34ff6a11786d9630bdffc [2018-12-03 03:44:08,371 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 03:44:08,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 03:44:08,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 03:44:08,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 03:44:08,374 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 03:44:08,375 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08, skipping insertion in model container [2018-12-03 03:44:08,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 03:44:08,392 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 03:44:08,488 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:44:08,491 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 03:44:08,511 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 03:44:08,528 INFO L195 MainTranslator]: Completed translation [2018-12-03 03:44:08,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08 WrapperNode [2018-12-03 03:44:08,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 03:44:08,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 03:44:08,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 03:44:08,529 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 03:44:08,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 03:44:08,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 03:44:08,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 03:44:08,545 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 03:44:08,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,604 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... [2018-12-03 03:44:08,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 03:44:08,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 03:44:08,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 03:44:08,608 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 03:44:08,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/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 [2018-12-03 03:44:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-03 03:44:08,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 03:44:08,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 03:44:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 03:44:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 03:44:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-12-03 03:44:08,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-12-03 03:44:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-03 03:44:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-03 03:44:08,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-03 03:44:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 03:44:08,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 03:44:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 03:44:08,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 03:44:08,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 03:44:08,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 03:44:08,748 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:44:08,941 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 03:44:09,544 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 03:44:09,544 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-03 03:44:09,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:44:09 BoogieIcfgContainer [2018-12-03 03:44:09,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 03:44:09,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 03:44:09,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 03:44:09,546 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 03:44:09,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 03:44:08" (1/3) ... [2018-12-03 03:44:09,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb20177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:44:09, skipping insertion in model container [2018-12-03 03:44:09,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:44:08" (2/3) ... [2018-12-03 03:44:09,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb20177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:44:09, skipping insertion in model container [2018-12-03 03:44:09,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:44:09" (3/3) ... [2018-12-03 03:44:09,548 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d_true-unreach-call.c [2018-12-03 03:44:09,554 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 03:44:09,558 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 03:44:09,566 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 03:44:09,583 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 03:44:09,584 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 03:44:09,584 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 03:44:09,584 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 03:44:09,584 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 03:44:09,584 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 03:44:09,584 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 03:44:09,584 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 03:44:09,584 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 03:44:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-12-03 03:44:09,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 03:44:09,597 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:44:09,597 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:44:09,598 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:44:09,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:44:09,602 INFO L82 PathProgramCache]: Analyzing trace with hash -721738728, now seen corresponding path program 1 times [2018-12-03 03:44:09,604 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:44:09,604 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/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 [2018-12-03 03:44:09,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:44:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:44:09,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:44:09,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:44:09,660 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:44:09,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:44:09,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 03:44:09,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 03:44:09,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 03:44:09,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:44:09,679 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-12-03 03:44:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:44:09,693 INFO L93 Difference]: Finished difference Result 90 states and 133 transitions. [2018-12-03 03:44:09,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 03:44:09,693 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-03 03:44:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:44:09,699 INFO L225 Difference]: With dead ends: 90 [2018-12-03 03:44:09,699 INFO L226 Difference]: Without dead ends: 45 [2018-12-03 03:44:09,701 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 03:44:09,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-03 03:44:09,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-12-03 03:44:09,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-03 03:44:09,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2018-12-03 03:44:09,724 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 24 [2018-12-03 03:44:09,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:44:09,724 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2018-12-03 03:44:09,724 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 03:44:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2018-12-03 03:44:09,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 03:44:09,725 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:44:09,725 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:44:09,725 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:44:09,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:44:09,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1549059375, now seen corresponding path program 1 times [2018-12-03 03:44:09,726 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:44:09,726 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/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 [2018-12-03 03:44:09,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:44:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:44:09,787 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:44:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:44:09,909 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:44:09,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:44:09,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 03:44:09,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:44:09,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:44:09,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:44:09,918 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 7 states. [2018-12-03 03:44:12,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:44:12,268 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2018-12-03 03:44:12,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-03 03:44:12,269 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-03 03:44:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:44:12,271 INFO L225 Difference]: With dead ends: 78 [2018-12-03 03:44:12,271 INFO L226 Difference]: Without dead ends: 46 [2018-12-03 03:44:12,272 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-03 03:44:12,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-03 03:44:12,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2018-12-03 03:44:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-03 03:44:12,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-12-03 03:44:12,276 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 26 [2018-12-03 03:44:12,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:44:12,276 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-12-03 03:44:12,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:44:12,277 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-12-03 03:44:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 03:44:12,277 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:44:12,277 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:44:12,278 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:44:12,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:44:12,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1162953480, now seen corresponding path program 1 times [2018-12-03 03:44:12,278 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:44:12,278 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/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 [2018-12-03 03:44:12,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:44:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:44:12,335 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:44:12,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:44:12,443 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:44:12,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:44:12,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 03:44:12,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:44:12,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:44:12,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:44:12,456 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 7 states. [2018-12-03 03:44:12,973 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-12-03 03:44:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:44:13,780 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2018-12-03 03:44:13,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-03 03:44:13,781 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-03 03:44:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:44:13,781 INFO L225 Difference]: With dead ends: 59 [2018-12-03 03:44:13,781 INFO L226 Difference]: Without dead ends: 27 [2018-12-03 03:44:13,782 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-12-03 03:44:13,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-03 03:44:13,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-03 03:44:13,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-03 03:44:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-12-03 03:44:13,784 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26 [2018-12-03 03:44:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:44:13,785 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-12-03 03:44:13,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:44:13,785 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-12-03 03:44:13,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 03:44:13,785 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:44:13,785 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:44:13,786 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:44:13,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:44:13,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1463112616, now seen corresponding path program 1 times [2018-12-03 03:44:13,786 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:44:13,786 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/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 [2018-12-03 03:44:13,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:44:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:44:13,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:44:14,697 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 03:44:14,698 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 03:44:14,701 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2018-12-03 03:44:14,741 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 03:44:14,748 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2018-12-03 03:44:14,749 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-03 03:44:14,764 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-12-03 03:44:14,778 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-12-03 03:44:14,778 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-03 03:44:14,783 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 03:44:14,787 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 03:44:14,796 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-03 03:44:14,796 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:57, output treesize:18 [2018-12-03 03:44:15,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:44:15,209 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:44:15,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:44:15,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-03 03:44:15,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 03:44:15,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 03:44:15,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-03 03:44:15,218 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 11 states. [2018-12-03 03:44:16,567 WARN L180 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-03 03:44:18,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:44:18,064 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-12-03 03:44:18,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-03 03:44:18,065 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-03 03:44:18,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:44:18,065 INFO L225 Difference]: With dead ends: 34 [2018-12-03 03:44:18,065 INFO L226 Difference]: Without dead ends: 27 [2018-12-03 03:44:18,065 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-03 03:44:18,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-12-03 03:44:18,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-03 03:44:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-03 03:44:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-12-03 03:44:18,070 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2018-12-03 03:44:18,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:44:18,070 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-12-03 03:44:18,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 03:44:18,070 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-12-03 03:44:18,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-03 03:44:18,070 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 03:44:18,070 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 03:44:18,071 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 03:44:18,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 03:44:18,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1756515623, now seen corresponding path program 1 times [2018-12-03 03:44:18,071 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 03:44:18,071 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-03 03:44:18,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 03:44:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 03:44:18,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 03:44:18,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 03:44:18,216 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 03:44:18,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 03:44:18,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 03:44:18,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 03:44:18,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 03:44:18,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 03:44:18,225 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 7 states. [2018-12-03 03:44:18,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 03:44:18,504 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-12-03 03:44:18,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 03:44:18,504 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-03 03:44:18,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 03:44:18,504 INFO L225 Difference]: With dead ends: 27 [2018-12-03 03:44:18,505 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 03:44:18,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-03 03:44:18,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 03:44:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 03:44:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 03:44:18,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 03:44:18,506 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-03 03:44:18,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 03:44:18,506 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 03:44:18,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 03:44:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 03:44:18,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 03:44:18,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 03:44:18,556 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:44:18,557 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:44:18,557 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:44:18,557 INFO L448 ceAbstractionStarter]: For program point L83-1(lines 83 88) no Hoare annotation was computed. [2018-12-03 03:44:18,557 INFO L444 ceAbstractionStarter]: At program point L83-2(lines 83 88) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-12-03 03:44:18,557 INFO L448 ceAbstractionStarter]: For program point L83-3(lines 83 88) no Hoare annotation was computed. [2018-12-03 03:44:18,557 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 81 93) no Hoare annotation was computed. [2018-12-03 03:44:18,557 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 81 93) no Hoare annotation was computed. [2018-12-03 03:44:18,557 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 81 93) the Hoare annotation is: true [2018-12-03 03:44:18,557 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 47) no Hoare annotation was computed. [2018-12-03 03:44:18,557 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-12-03 03:44:18,557 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 70) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 35) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 36) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 69) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 52) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 46) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 35) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 67) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L58-1(lines 58 67) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 16 78) the Hoare annotation is: true [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-03 03:44:18,558 INFO L448 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 76) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L71-1(lines 16 78) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L71-2(lines 71 76) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 16 78) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 16 78) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L63(lines 63 64) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L63-2(lines 63 64) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 66) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 70) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 40) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 03:44:18,559 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 03:44:18,559 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 03:44:18,560 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 03:44:18,560 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 95 113) the Hoare annotation is: true [2018-12-03 03:44:18,560 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 95 113) no Hoare annotation was computed. [2018-12-03 03:44:18,560 INFO L448 ceAbstractionStarter]: For program point L108(line 108) no Hoare annotation was computed. [2018-12-03 03:44:18,560 INFO L444 ceAbstractionStarter]: At program point L107(line 107) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= .cse0 main_~x~0))) [2018-12-03 03:44:18,560 INFO L448 ceAbstractionStarter]: For program point L107-1(lines 107 110) no Hoare annotation was computed. [2018-12-03 03:44:18,560 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 95 113) no Hoare annotation was computed. [2018-12-03 03:44:18,560 INFO L444 ceAbstractionStarter]: At program point L104(line 104) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0) [2018-12-03 03:44:18,560 INFO L448 ceAbstractionStarter]: For program point L104-1(line 104) no Hoare annotation was computed. [2018-12-03 03:44:18,560 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2018-12-03 03:44:18,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:44:18 BoogieIcfgContainer [2018-12-03 03:44:18,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 03:44:18,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 03:44:18,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 03:44:18,569 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 03:44:18,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:44:09" (3/4) ... [2018-12-03 03:44:18,572 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 03:44:18,576 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 03:44:18,576 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-12-03 03:44:18,576 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-12-03 03:44:18,577 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 03:44:18,579 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2018-12-03 03:44:18,580 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-03 03:44:18,580 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 03:44:18,596 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-03 03:44:18,596 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-03 03:44:18,610 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_65399ab0-9946-41e2-9572-0149da47db23/bin-2019/utaipan/witness.graphml [2018-12-03 03:44:18,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 03:44:18,611 INFO L168 Benchmark]: Toolchain (without parser) took 10240.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 943.4 MB in the beginning and 862.2 MB in the end (delta: 81.1 MB). Peak memory consumption was 227.4 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:18,612 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:44:18,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.36 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:18,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.28 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 03:44:18,612 INFO L168 Benchmark]: Boogie Preprocessor took 61.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -206.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:18,613 INFO L168 Benchmark]: RCFGBuilder took 936.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:18,613 INFO L168 Benchmark]: TraceAbstraction took 9024.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 869.1 MB in the end (delta: 238.2 MB). Peak memory consumption was 238.2 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:18,613 INFO L168 Benchmark]: Witness Printer took 41.53 ms. Allocated memory is still 1.2 GB. Free memory was 869.1 MB in the beginning and 862.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-03 03:44:18,615 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 156.36 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 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 16.28 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -206.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 936.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9024.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 869.1 MB in the end (delta: 238.2 MB). Peak memory consumption was 238.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.53 ms. Allocated memory is still 1.2 GB. Free memory was 869.1 MB in the beginning and 862.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. SAFE Result, 8.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 6.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 147 SDtfs, 241 SDslu, 383 SDs, 0 SdLazy, 266 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 146 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 49 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 123 ConstructedInterpolants, 26 QuantifiedInterpolants, 20154 SizeOfPredicates, 18 NumberOfNonLiveVariables, 408 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...