./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/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 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 ...................................................................................................................................................................................................................................................................................................................... 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_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/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 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:19:06,104 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:19:06,106 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:19:06,112 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:19:06,112 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:19:06,112 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:19:06,113 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:19:06,114 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:19:06,115 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:19:06,115 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:19:06,115 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:19:06,116 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:19:06,116 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:19:06,117 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:19:06,117 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:19:06,118 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:19:06,118 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:19:06,119 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:19:06,120 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:19:06,121 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:19:06,122 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:19:06,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:19:06,123 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:19:06,124 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:19:06,124 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:19:06,124 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:19:06,125 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:19:06,125 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:19:06,126 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:19:06,127 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:19:06,127 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:19:06,127 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:19:06,127 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:19:06,128 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:19:06,128 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:19:06,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:19:06,129 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:19:06,137 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:19:06,137 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:19:06,138 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:19:06,138 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:19:06,138 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:19:06,138 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:19:06,138 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:19:06,138 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:19:06,138 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:19:06,139 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:19:06,139 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:19:06,139 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:19:06,139 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:19:06,140 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:19:06,140 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:19:06,140 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:19:06,140 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:19:06,140 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:19:06,140 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:19:06,140 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:19:06,140 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:19:06,141 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:19:06,141 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:19:06,141 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:19:06,141 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:19:06,141 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:19:06,141 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:19:06,141 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:19:06,142 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:19:06,142 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:19:06,142 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:19:06,142 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:19:06,142 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:19:06,142 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:19:06,142 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:19:06,142 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:19:06,143 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:19:06,143 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_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/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 -> 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 [2018-11-18 12:19:06,166 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:19:06,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:19:06,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:19:06,177 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:19:06,177 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:19:06,178 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-11-18 12:19:06,215 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data/d6d51abb3/8b32e1c518b543098f0728389a42d3b6/FLAG03a188856 [2018-11-18 12:19:06,558 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:19:06,559 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-11-18 12:19:06,565 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data/d6d51abb3/8b32e1c518b543098f0728389a42d3b6/FLAG03a188856 [2018-11-18 12:19:06,973 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data/d6d51abb3/8b32e1c518b543098f0728389a42d3b6 [2018-11-18 12:19:06,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:19:06,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:19:06,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:19:06,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:19:06,981 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:19:06,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:19:06" (1/1) ... [2018-11-18 12:19:06,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eb018f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:06, skipping insertion in model container [2018-11-18 12:19:06,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:19:06" (1/1) ... [2018-11-18 12:19:06,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:19:07,006 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:19:07,136 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:19:07,139 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:19:07,165 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:19:07,181 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:19:07,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07 WrapperNode [2018-11-18 12:19:07,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:19:07,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:19:07,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:19:07,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:19:07,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:19:07,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:19:07,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:19:07,198 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:19:07,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... [2018-11-18 12:19:07,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:19:07,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:19:07,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:19:07,259 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:19:07,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:19:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:19:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:19:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:19:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:19:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:19:07,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:19:07,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:19:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:19:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 12:19:07,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 12:19:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:19:07,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:19:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:19:07,293 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 12:19:07,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 12:19:07,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:19:07,486 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:19:07,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:19:07 BoogieIcfgContainer [2018-11-18 12:19:07,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:19:07,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:19:07,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:19:07,489 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:19:07,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:19:06" (1/3) ... [2018-11-18 12:19:07,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574bbffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:19:07, skipping insertion in model container [2018-11-18 12:19:07,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:07" (2/3) ... [2018-11-18 12:19:07,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@574bbffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:19:07, skipping insertion in model container [2018-11-18 12:19:07,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:19:07" (3/3) ... [2018-11-18 12:19:07,491 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930_true-unreach-call.c [2018-11-18 12:19:07,498 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:19:07,502 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:19:07,511 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:19:07,535 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:19:07,535 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:19:07,535 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:19:07,535 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:19:07,535 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:19:07,536 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:19:07,536 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:19:07,536 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:19:07,550 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-18 12:19:07,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:19:07,553 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:19:07,554 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:19:07,555 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:19:07,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:19:07,559 INFO L82 PathProgramCache]: Analyzing trace with hash -876527574, now seen corresponding path program 1 times [2018-11-18 12:19:07,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:19:07,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:19:07,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:19:07,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:19:07,601 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:19:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:19:07,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:19:07,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:19:07,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:19:07,675 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:19:07,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:19:07,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:19:07,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:19:07,687 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-18 12:19:07,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:19:07,704 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2018-11-18 12:19:07,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:19:07,705 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 12:19:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:19:07,711 INFO L225 Difference]: With dead ends: 86 [2018-11-18 12:19:07,711 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 12:19:07,713 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:19:07,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 12:19:07,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-18 12:19:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 12:19:07,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-18 12:19:07,745 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 17 [2018-11-18 12:19:07,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:19:07,746 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-18 12:19:07,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:19:07,746 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-11-18 12:19:07,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 12:19:07,746 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:19:07,746 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:19:07,747 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:19:07,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:19:07,747 INFO L82 PathProgramCache]: Analyzing trace with hash 818034388, now seen corresponding path program 1 times [2018-11-18 12:19:07,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:19:07,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:19:07,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:19:07,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:19:07,748 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:19:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:19:07,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:19:07,806 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:19:07,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:19:07 BoogieIcfgContainer [2018-11-18 12:19:07,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:19:07,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:19:07,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:19:07,832 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:19:07,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:19:07" (3/4) ... [2018-11-18 12:19:07,834 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:19:07,834 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:19:07,835 INFO L168 Benchmark]: Toolchain (without parser) took 858.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -112.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:19:07,836 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:19:07,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.85 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:19:07,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.10 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:19:07,837 INFO L168 Benchmark]: Boogie Preprocessor took 60.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:19:07,837 INFO L168 Benchmark]: RCFGBuilder took 227.70 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:19:07,838 INFO L168 Benchmark]: TraceAbstraction took 343.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:19:07,838 INFO L168 Benchmark]: Witness Printer took 3.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:19:07,840 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.85 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 945.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.10 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -181.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 227.70 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 343.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 120, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 31. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450959, \old(Lg2_log)=6442450960, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450956, \old(Lg7_log)=6442450955, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450951, \old(two25_log)=6442450954, \old(zero_log)=6442450953, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L116] float x = 1.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L21] float hfsq, f, s, z, R, w, t1, t2, dk; [L22] __int32_t k, ix, i, j; VAL [\old(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L25] FCALL ieee_float_shape_type gf_u; [L26] FCALL gf_u.value = (x) [L27] EXPR, FCALL gf_u.word [L27] (ix) = gf_u.word [L28] COND FALSE !(0) VAL [\old(x)=1, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L30] k = 0 VAL [\old(x)=1, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L31] COND TRUE ((ix & 0x7fffffff) == 0) [L32] RET return -two25_log / zero_log; VAL [\old(x)=1, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=1, zero_log=0] [L117] float res = __ieee754_logf(x); [L120] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, res == 0.0f && __signbit_float(res) == 0=0, two25_log=33554432, x=1, zero_log=0] [L120] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L121] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=1, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 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=47occurred 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 12:19:09,328 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:19:09,330 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:19:09,339 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:19:09,339 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:19:09,340 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:19:09,341 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:19:09,342 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:19:09,343 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:19:09,344 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:19:09,344 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:19:09,344 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:19:09,345 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:19:09,346 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:19:09,347 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:19:09,347 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:19:09,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:19:09,349 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:19:09,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:19:09,351 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:19:09,352 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:19:09,353 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:19:09,354 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:19:09,355 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:19:09,355 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:19:09,356 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:19:09,356 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:19:09,357 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:19:09,357 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:19:09,358 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:19:09,358 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:19:09,359 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:19:09,359 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:19:09,359 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:19:09,360 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:19:09,360 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:19:09,361 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:19:09,371 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:19:09,371 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:19:09,372 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:19:09,372 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:19:09,372 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:19:09,372 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:19:09,372 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:19:09,372 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:19:09,373 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:19:09,373 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:19:09,373 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:19:09,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:19:09,374 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:19:09,374 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:19:09,374 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:19:09,374 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:19:09,374 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:19:09,374 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:19:09,374 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:19:09,375 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:19:09,375 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:19:09,375 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:19:09,375 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:19:09,375 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:19:09,375 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:19:09,376 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:19:09,376 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:19:09,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:19:09,376 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:19:09,376 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:19:09,376 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:19:09,376 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:19:09,377 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:19:09,377 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:19:09,377 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:19:09,377 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_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/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 -> 8d1cc22c86ec678ca6c8e47fb3affd89f077aca1 [2018-11-18 12:19:09,408 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:19:09,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:19:09,418 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:19:09,419 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:19:09,419 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:19:09,420 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-11-18 12:19:09,453 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data/32dabaddd/0b808baa78e048709c47a15a9893424e/FLAG51688c05e [2018-11-18 12:19:09,851 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:19:09,852 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/sv-benchmarks/c/float-newlib/float_req_bl_0930_true-unreach-call.c [2018-11-18 12:19:09,856 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data/32dabaddd/0b808baa78e048709c47a15a9893424e/FLAG51688c05e [2018-11-18 12:19:09,866 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/data/32dabaddd/0b808baa78e048709c47a15a9893424e [2018-11-18 12:19:09,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:19:09,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:19:09,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:19:09,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:19:09,872 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:19:09,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:19:09" (1/1) ... [2018-11-18 12:19:09,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1c7639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:09, skipping insertion in model container [2018-11-18 12:19:09,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:19:09" (1/1) ... [2018-11-18 12:19:09,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:19:09,903 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:19:10,054 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:19:10,058 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:19:10,087 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:19:10,108 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:19:10,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10 WrapperNode [2018-11-18 12:19:10,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:19:10,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:19:10,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:19:10,109 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:19:10,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:19:10,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:19:10,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:19:10,127 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:19:10,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... [2018-11-18 12:19:10,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:19:10,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:19:10,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:19:10,197 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:19:10,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:19:10,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:19:10,234 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:19:10,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 12:19:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:19:10,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:19:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:19:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:19:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 12:19:10,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 12:19:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:19:10,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:19:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 12:19:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 12:19:10,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 12:19:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:19:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:19:22,823 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:19:22,914 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:19:22,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:19:22 BoogieIcfgContainer [2018-11-18 12:19:22,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:19:22,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:19:22,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:19:22,917 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:19:22,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:19:09" (1/3) ... [2018-11-18 12:19:22,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e2241f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:19:22, skipping insertion in model container [2018-11-18 12:19:22,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:19:10" (2/3) ... [2018-11-18 12:19:22,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e2241f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:19:22, skipping insertion in model container [2018-11-18 12:19:22,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:19:22" (3/3) ... [2018-11-18 12:19:22,919 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0930_true-unreach-call.c [2018-11-18 12:19:22,925 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:19:22,929 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:19:22,938 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:19:22,957 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:19:22,957 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:19:22,957 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:19:22,957 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:19:22,958 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:19:22,958 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:19:22,958 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:19:22,958 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:19:22,958 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:19:22,968 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-18 12:19:22,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 12:19:22,972 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:19:22,973 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:19:22,974 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:19:22,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:19:22,978 INFO L82 PathProgramCache]: Analyzing trace with hash -876527574, now seen corresponding path program 1 times [2018-11-18 12:19:22,980 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:19:22,981 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 12:19:22,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:19:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:19:23,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:19:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:19:23,212 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:19:23,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:19:23,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:19:23,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:19:23,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:19:23,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:19:23,234 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-18 12:19:23,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:19:23,250 INFO L93 Difference]: Finished difference Result 86 states and 127 transitions. [2018-11-18 12:19:23,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:19:23,251 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-11-18 12:19:23,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:19:23,258 INFO L225 Difference]: With dead ends: 86 [2018-11-18 12:19:23,258 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 12:19:23,260 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:19:23,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 12:19:23,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-18 12:19:23,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 12:19:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2018-11-18 12:19:23,286 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 17 [2018-11-18 12:19:23,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:19:23,286 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2018-11-18 12:19:23,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:19:23,286 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2018-11-18 12:19:23,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 12:19:23,287 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:19:23,287 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:19:23,287 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:19:23,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:19:23,288 INFO L82 PathProgramCache]: Analyzing trace with hash 818034388, now seen corresponding path program 1 times [2018-11-18 12:19:23,288 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:19:23,288 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 12:19:23,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:19:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:19:23,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:19:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:19:23,564 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:19:23,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:19:23,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:19:23,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:19:23,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:19:23,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:19:23,576 INFO L87 Difference]: Start difference. First operand 43 states and 54 transitions. Second operand 6 states. [2018-11-18 12:19:27,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:19:27,018 INFO L93 Difference]: Finished difference Result 62 states and 73 transitions. [2018-11-18 12:19:27,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:19:27,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-11-18 12:19:27,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:19:27,122 INFO L225 Difference]: With dead ends: 62 [2018-11-18 12:19:27,122 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 12:19:27,123 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:19:27,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 12:19:27,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-11-18 12:19:27,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 12:19:27,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-11-18 12:19:27,129 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 18 [2018-11-18 12:19:27,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:19:27,129 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-11-18 12:19:27,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:19:27,129 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-11-18 12:19:27,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 12:19:27,130 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:19:27,130 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:19:27,130 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:19:27,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:19:27,130 INFO L82 PathProgramCache]: Analyzing trace with hash -85731096, now seen corresponding path program 1 times [2018-11-18 12:19:27,131 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:19:27,131 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 12:19:27,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:19:27,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:19:27,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:19:27,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:19:27,383 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:19:27,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:19:27,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:19:27,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:19:27,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:19:27,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:19:27,393 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 6 states. [2018-11-18 12:19:30,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:19:30,453 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2018-11-18 12:19:30,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:19:30,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-11-18 12:19:30,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:19:30,580 INFO L225 Difference]: With dead ends: 62 [2018-11-18 12:19:30,580 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 12:19:30,580 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:19:30,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 12:19:30,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-11-18 12:19:30,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 12:19:30,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2018-11-18 12:19:30,586 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 19 [2018-11-18 12:19:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:19:30,587 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-11-18 12:19:30,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:19:30,587 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2018-11-18 12:19:30,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:19:30,587 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:19:30,588 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:19:30,588 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:19:30,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:19:30,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1217357400, now seen corresponding path program 1 times [2018-11-18 12:19:30,589 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:19:30,589 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 12:19:30,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:19:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:19:30,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:19:30,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:19:30,707 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:19:30,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:19:30,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:19:30,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:19:30,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:19:30,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:19:30,717 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 6 states. [2018-11-18 12:19:33,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:19:33,508 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-18 12:19:33,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:19:33,633 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-18 12:19:33,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:19:33,634 INFO L225 Difference]: With dead ends: 60 [2018-11-18 12:19:33,634 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 12:19:33,635 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:19:33,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 12:19:33,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-11-18 12:19:33,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 12:19:33,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-11-18 12:19:33,640 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 20 [2018-11-18 12:19:33,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:19:33,640 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-11-18 12:19:33,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:19:33,641 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-11-18 12:19:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 12:19:33,641 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:19:33,641 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:19:33,642 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:19:33,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:19:33,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1268428517, now seen corresponding path program 1 times [2018-11-18 12:19:33,642 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:19:33,642 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 12:19:33,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:19:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:19:33,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:19:33,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:19:33,754 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:19:33,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:19:33,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:19:33,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:19:33,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:19:33,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:19:33,763 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 6 states. [2018-11-18 12:19:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:19:43,967 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-11-18 12:19:43,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:19:43,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-11-18 12:19:43,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:19:43,969 INFO L225 Difference]: With dead ends: 52 [2018-11-18 12:19:43,969 INFO L226 Difference]: Without dead ends: 49 [2018-11-18 12:19:43,969 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:19:43,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-18 12:19:43,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2018-11-18 12:19:43,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-18 12:19:43,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 55 transitions. [2018-11-18 12:19:43,973 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 55 transitions. Word has length 28 [2018-11-18 12:19:43,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:19:43,974 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 55 transitions. [2018-11-18 12:19:43,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:19:43,974 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-11-18 12:19:43,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 12:19:43,975 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:19:43,975 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:19:43,975 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:19:43,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:19:43,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2139035098, now seen corresponding path program 1 times [2018-11-18 12:19:43,975 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:19:43,976 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 12:19:43,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:19:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:19:44,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:19:44,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:19:44,364 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:19:44,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:19:44,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 12:19:44,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:19:44,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:19:44,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:19:44,374 INFO L87 Difference]: Start difference. First operand 47 states and 55 transitions. Second operand 9 states. [2018-11-18 12:20:23,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:20:23,123 INFO L93 Difference]: Finished difference Result 79 states and 94 transitions. [2018-11-18 12:20:23,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:20:23,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-11-18 12:20:23,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:20:23,169 INFO L225 Difference]: With dead ends: 79 [2018-11-18 12:20:23,169 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 12:20:23,170 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:20:23,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 12:20:23,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2018-11-18 12:20:23,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 12:20:23,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2018-11-18 12:20:23,176 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 28 [2018-11-18 12:20:23,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:20:23,177 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2018-11-18 12:20:23,177 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:20:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2018-11-18 12:20:23,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 12:20:23,178 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:20:23,178 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:20:23,178 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:20:23,178 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:20:23,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1535096709, now seen corresponding path program 1 times [2018-11-18 12:20:23,178 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:20:23,178 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 12:20:23,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:20:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:20:23,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:20:29,253 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-11-18 12:20:44,318 WARN L180 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-11-18 12:20:44,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:20:44,340 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:20:44,351 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:20:44,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 12:20:44,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:20:44,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:20:44,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=59, Unknown=7, NotChecked=0, Total=90 [2018-11-18 12:20:44,352 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand 10 states. [2018-11-18 12:21:48,424 WARN L180 SmtUtils]: Spent 2.32 s on a formula simplification that was a NOOP. DAG size: 46 [2018-11-18 12:22:31,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:22:31,236 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2018-11-18 12:22:31,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:22:31,237 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2018-11-18 12:22:31,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:22:31,237 INFO L225 Difference]: With dead ends: 60 [2018-11-18 12:22:31,237 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 12:22:31,238 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 34.4s TimeCoverageRelationStatistics Valid=46, Invalid=125, Unknown=11, NotChecked=0, Total=182 [2018-11-18 12:22:31,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 12:22:31,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-18 12:22:31,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-18 12:22:31,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2018-11-18 12:22:31,242 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 28 [2018-11-18 12:22:31,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:22:31,242 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2018-11-18 12:22:31,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:22:31,242 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2018-11-18 12:22:31,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 12:22:31,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:22:31,243 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:22:31,243 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:22:31,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:22:31,243 INFO L82 PathProgramCache]: Analyzing trace with hash -919299182, now seen corresponding path program 1 times [2018-11-18 12:22:31,244 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:22:31,244 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-18 12:22:31,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:22:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:22:32,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:22:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:22:32,317 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:22:32,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:22:32,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:22:32,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:22:32,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:22:32,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:22:32,344 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 7 states. [2018-11-18 12:22:35,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:22:35,085 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-11-18 12:22:35,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:22:35,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-11-18 12:22:35,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:22:35,087 INFO L225 Difference]: With dead ends: 55 [2018-11-18 12:22:35,087 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 12:22:35,087 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:22:35,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 12:22:35,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 12:22:35,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 12:22:35,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions. [2018-11-18 12:22:35,091 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 28 [2018-11-18 12:22:35,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:22:35,091 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions. [2018-11-18 12:22:35,092 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:22:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions. [2018-11-18 12:22:35,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 12:22:35,092 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:22:35,092 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:22:35,093 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:22:35,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:22:35,093 INFO L82 PathProgramCache]: Analyzing trace with hash 1379922702, now seen corresponding path program 1 times [2018-11-18 12:22:35,093 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:22:35,093 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_70e236c8-94bb-4a8d-8569-fa6f572ca6e4/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-11-18 12:22:35,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:22:35,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:22:35,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:22:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:22:35,326 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:22:35,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:22:35,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 12:22:35,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:22:35,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:22:35,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:22:35,335 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand 11 states. [2018-11-18 12:22:35,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:22:35,684 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-11-18 12:22:35,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:22:35,685 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2018-11-18 12:22:35,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:22:35,685 INFO L225 Difference]: With dead ends: 37 [2018-11-18 12:22:35,685 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:22:35,685 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2018-11-18 12:22:35,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:22:35,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:22:35,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:22:35,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:22:35,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-18 12:22:35,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:22:35,686 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:22:35,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:22:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:22:35,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:22:35,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:22:35,971 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2018-11-18 12:22:36,073 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:22:36,074 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L421 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (exists ((v___ieee754_logf_~ix~0_17 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_17) ((_ extract 30 23) v___ieee754_logf_~ix~0_17) ((_ extract 22 0) v___ieee754_logf_~ix~0_17)) |__ieee754_logf_#in~x|) (not (= (bvadd (bvneg (bvneg (bvashr (bvand (_ bv8388608 32) (bvadd (bvand (_ bv8388607 32) v___ieee754_logf_~ix~0_17) (_ bv4913952 32))) (_ bv23 32)))) (bvashr v___ieee754_logf_~ix~0_17 (_ bv23 32)) (_ bv4294967169 32)) (_ bv0 32))))) (= |__ieee754_logf_#in~x| (fp ((_ extract 31 31) __ieee754_logf_~ix~0) ((_ extract 30 23) __ieee754_logf_~ix~0) ((_ extract 22 0) __ieee754_logf_~ix~0))))) [2018-11-18 12:22:36,074 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-11-18 12:22:36,074 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-18 12:22:36,074 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L421 ceAbstractionStarter]: At program point L49-3(lines 49 53) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (exists ((v___ieee754_logf_~ix~0_17 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_17) ((_ extract 30 23) v___ieee754_logf_~ix~0_17) ((_ extract 22 0) v___ieee754_logf_~ix~0_17)) |__ieee754_logf_#in~x|) (not (= (bvadd (bvneg (bvneg (bvashr (bvand (_ bv8388608 32) (bvadd (bvand (_ bv8388607 32) v___ieee754_logf_~ix~0_17) (_ bv4913952 32))) (_ bv23 32)))) (bvashr v___ieee754_logf_~ix~0_17 (_ bv23 32)) (_ bv4294967169 32)) (_ bv0 32))))) (and (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (exists ((v___ieee754_logf_~ix~0_17 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_17) ((_ extract 30 23) v___ieee754_logf_~ix~0_17) ((_ extract 22 0) v___ieee754_logf_~ix~0_17)) |__ieee754_logf_#in~x|) (= (bvand (_ bv8388608 32) (bvadd (bvand (_ bv8388607 32) v___ieee754_logf_~ix~0_17) (_ bv4913952 32))) __ieee754_logf_~i~0) (= (bvadd __ieee754_logf_~k~0 (_ bv127 32)) (bvashr v___ieee754_logf_~ix~0_17 (_ bv23 32))))) (exists ((v___ieee754_logf_~ix~0_18 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) v___ieee754_logf_~ix~0_18) ((_ extract 30 23) v___ieee754_logf_~ix~0_18) ((_ extract 22 0) v___ieee754_logf_~ix~0_18)) |__ieee754_logf_#in~x|) (= __ieee754_logf_~ix~0 (bvand (_ bv8388607 32) v___ieee754_logf_~ix~0_18)))))) [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L49-4(lines 49 53) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-11-18 12:22:36,075 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-11-18 12:22:36,076 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-11-18 12:22:36,076 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-18 12:22:36,076 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:22:36,076 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-11-18 12:22:36,076 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:22:36,076 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:22:36,076 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 110 126) the Hoare annotation is: true [2018-11-18 12:22:36,076 INFO L425 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-11-18 12:22:36,076 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 110 126) no Hoare annotation was computed. [2018-11-18 12:22:36,076 INFO L425 ceAbstractionStarter]: For program point L120(line 120) no Hoare annotation was computed. [2018-11-18 12:22:36,077 INFO L421 ceAbstractionStarter]: At program point L120-1(line 120) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (not (= .cse0 ~zero_log~0)) (and (= .cse0 main_~res~0) |main_#t~short10| (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0)))) [2018-11-18 12:22:36,077 INFO L425 ceAbstractionStarter]: For program point L120-2(line 120) no Hoare annotation was computed. [2018-11-18 12:22:36,077 INFO L421 ceAbstractionStarter]: At program point L117(line 117) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= ((_ to_fp 8 24) roundNearestTiesToEven 1.0) main_~x~0)) [2018-11-18 12:22:36,077 INFO L425 ceAbstractionStarter]: For program point L117-1(line 117) no Hoare annotation was computed. [2018-11-18 12:22:36,077 INFO L425 ceAbstractionStarter]: For program point L120-4(lines 120 123) no Hoare annotation was computed. [2018-11-18 12:22:36,077 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2018-11-18 12:22:36,077 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 110 126) no Hoare annotation was computed. [2018-11-18 12:22:36,077 INFO L425 ceAbstractionStarter]: For program point L101-4(lines 101 105) no Hoare annotation was computed. [2018-11-18 12:22:36,078 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 98 108) no Hoare annotation was computed. [2018-11-18 12:22:36,078 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 98 108) the Hoare annotation is: true [2018-11-18 12:22:36,078 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 98 108) no Hoare annotation was computed. [2018-11-18 12:22:36,078 INFO L425 ceAbstractionStarter]: For program point L101-1(lines 101 105) no Hoare annotation was computed. [2018-11-18 12:22:36,078 INFO L421 ceAbstractionStarter]: At program point L101-3(lines 101 105) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= |__signbit_float_#in~x| __signbit_float_~x)) [2018-11-18 12:22:36,081 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:446) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:373) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:108) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:92) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:537) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 12:22:36,082 INFO L168 Benchmark]: Toolchain (without parser) took 206214.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 950.8 MB in the beginning and 1.0 GB in the end (delta: -86.3 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:22:36,083 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:22:36,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.56 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:22:36,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.99 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:22:36,084 INFO L168 Benchmark]: Boogie Preprocessor took 69.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:22:36,084 INFO L168 Benchmark]: RCFGBuilder took 12717.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:22:36,084 INFO L168 Benchmark]: TraceAbstraction took 193166.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -3.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.9 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:22:36,086 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 239.56 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 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 17.99 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 12717.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 193166.59 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -3.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.9 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...