./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69b156b7cb8e47e9e9902f33725c5b7467b2d17a ................................................................................................................................................................................................................................................................................................................ 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_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69b156b7cb8e47e9e9902f33725c5b7467b2d17a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 11:33:54,378 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:33:54,379 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:33:54,385 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:33:54,385 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:33:54,386 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:33:54,386 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:33:54,387 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:33:54,388 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:33:54,389 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:33:54,389 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:33:54,389 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:33:54,390 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:33:54,390 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:33:54,391 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:33:54,391 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:33:54,392 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:33:54,393 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:33:54,394 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:33:54,394 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:33:54,395 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:33:54,395 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:33:54,397 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:33:54,397 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:33:54,397 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:33:54,397 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:33:54,398 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:33:54,398 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:33:54,399 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:33:54,399 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:33:54,399 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:33:54,400 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:33:54,400 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:33:54,400 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:33:54,400 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:33:54,401 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:33:54,401 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 11:33:54,408 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:33:54,409 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:33:54,409 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:33:54,409 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:33:54,410 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 11:33:54,410 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 11:33:54,410 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 11:33:54,410 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:33:54,410 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:33:54,410 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 11:33:54,410 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:33:54,410 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:33:54,410 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:33:54,411 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:33:54,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:33:54,412 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:33:54,412 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:33:54,412 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:33:54,412 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 11:33:54,412 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:33:54,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 11:33:54,412 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_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer 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 -> Automizer 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 -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2018-12-09 11:33:54,430 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:33:54,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:33:54,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:33:54,443 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:33:54,443 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:33:54,444 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-09 11:33:54,480 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data/7c27571a6/bdf5a9cad14b432fb9f627cd5abc5bd3/FLAGc443f2c62 [2018-12-09 11:33:54,909 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:33:54,909 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-09 11:33:54,913 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data/7c27571a6/bdf5a9cad14b432fb9f627cd5abc5bd3/FLAGc443f2c62 [2018-12-09 11:33:54,921 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data/7c27571a6/bdf5a9cad14b432fb9f627cd5abc5bd3 [2018-12-09 11:33:54,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:33:54,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:33:54,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:33:54,924 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:33:54,926 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:33:54,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:33:54" (1/1) ... [2018-12-09 11:33:54,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651df91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:54, skipping insertion in model container [2018-12-09 11:33:54,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:33:54" (1/1) ... [2018-12-09 11:33:54,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:33:54,944 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:33:55,042 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:33:55,044 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:33:55,064 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:33:55,105 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:33:55,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55 WrapperNode [2018-12-09 11:33:55,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:33:55,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:33:55,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:33:55,106 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:33:55,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:33:55,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:33:55,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:33:55,122 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:33:55,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,140 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... [2018-12-09 11:33:55,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:33:55,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:33:55,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:33:55,142 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:33:55,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:33:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 11:33:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 11:33:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-09 11:33:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-09 11:33:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:33:55,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:33:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 11:33:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:33:55,174 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-09 11:33:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-09 11:33:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:33:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:33:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 11:33:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:33:55,175 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:33:55,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 11:33:55,342 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:33:55,342 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 11:33:55,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:33:55 BoogieIcfgContainer [2018-12-09 11:33:55,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:33:55,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:33:55,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:33:55,346 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:33:55,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:33:54" (1/3) ... [2018-12-09 11:33:55,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10754362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:33:55, skipping insertion in model container [2018-12-09 11:33:55,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:55" (2/3) ... [2018-12-09 11:33:55,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10754362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:33:55, skipping insertion in model container [2018-12-09 11:33:55,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:33:55" (3/3) ... [2018-12-09 11:33:55,349 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c_true-unreach-call.c [2018-12-09 11:33:55,357 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:33:55,364 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:33:55,377 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:33:55,396 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 11:33:55,396 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:33:55,396 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:33:55,397 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:33:55,397 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:33:55,397 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:33:55,397 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:33:55,397 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:33:55,397 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:33:55,408 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-12-09 11:33:55,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 11:33:55,411 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:33:55,412 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:33:55,413 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:33:55,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:33:55,417 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2018-12-09 11:33:55,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 11:33:55,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 11:33:55,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:33:55,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:33:55,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:33:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:33:55,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:33:55,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:33:55,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 11:33:55,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 11:33:55,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 11:33:55,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:33:55,506 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-12-09 11:33:55,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:33:55,521 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-12-09 11:33:55,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 11:33:55,521 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-09 11:33:55,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:33:55,527 INFO L225 Difference]: With dead ends: 94 [2018-12-09 11:33:55,527 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 11:33:55,529 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:33:55,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 11:33:55,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-12-09 11:33:55,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-09 11:33:55,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-12-09 11:33:55,552 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-12-09 11:33:55,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:33:55,552 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-12-09 11:33:55,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 11:33:55,552 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-12-09 11:33:55,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 11:33:55,553 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:33:55,553 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:33:55,553 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:33:55,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:33:55,554 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2018-12-09 11:33:55,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 11:33:55,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 11:33:55,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:33:55,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:33:55,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:33:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:33:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:33:55,602 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 11:33:55,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:33:55 BoogieIcfgContainer [2018-12-09 11:33:55,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:33:55,619 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:33:55,619 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:33:55,620 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:33:55,620 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:33:55" (3/4) ... [2018-12-09 11:33:55,622 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 11:33:55,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:33:55,623 INFO L168 Benchmark]: Toolchain (without parser) took 700.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -77.6 MB). Peak memory consumption was 36.2 MB. Max. memory is 11.5 GB. [2018-12-09 11:33:55,624 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:33:55,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -146.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:33:55,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:33:55,625 INFO L168 Benchmark]: Boogie Preprocessor took 20.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 11:33:55,625 INFO L168 Benchmark]: RCFGBuilder took 200.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-12-09 11:33:55,625 INFO L168 Benchmark]: TraceAbstraction took 275.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-12-09 11:33:55,626 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-09 11:33:55,627 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -146.0 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 275.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someUnaryDOUBLEoperation at line 98, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=10737418244, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = -0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L99] CALL, EXPR floor_double(x) VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418248] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=10737418248] [L26] COND TRUE j0 < 20 VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418248] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418248] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [\old(x)=10737418248, \result=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418248] [L99] RET, EXPR floor_double(x) VAL [floor_double(x)=10737418248, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418248] [L99] double res = floor_double(x); [L102] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418248, res == -0.0 && __signbit_double(res) == 1=0, x=10737418248] [L102] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418248, x=10737418248] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 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=51occurred 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, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 11:33:56,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:33:56,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:33:56,967 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:33:56,967 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:33:56,967 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:33:56,968 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:33:56,969 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:33:56,969 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:33:56,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:33:56,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:33:56,970 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:33:56,971 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:33:56,971 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:33:56,972 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:33:56,972 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:33:56,973 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:33:56,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:33:56,974 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:33:56,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:33:56,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:33:56,976 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:33:56,977 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:33:56,978 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:33:56,978 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:33:56,978 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:33:56,979 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:33:56,979 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:33:56,979 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:33:56,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:33:56,980 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:33:56,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:33:56,980 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:33:56,981 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:33:56,981 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:33:56,981 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:33:56,981 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 11:33:56,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:33:56,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:33:56,989 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:33:56,989 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:33:56,990 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 11:33:56,990 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 11:33:56,990 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 11:33:56,990 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:33:56,990 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:33:56,990 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:33:56,990 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:33:56,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:33:56,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:33:56,992 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 11:33:56,992 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 11:33:56,992 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_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer 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 -> Automizer 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 -> 69b156b7cb8e47e9e9902f33725c5b7467b2d17a [2018-12-09 11:33:57,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:33:57,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:33:57,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:33:57,024 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:33:57,025 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:33:57,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-09 11:33:57,066 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data/a855519e6/0916d251330f41449e995a4a53a8aecb/FLAG577ea03ce [2018-12-09 11:33:57,465 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:33:57,466 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/sv-benchmarks/c/float-newlib/double_req_bl_1052c_true-unreach-call.c [2018-12-09 11:33:57,470 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data/a855519e6/0916d251330f41449e995a4a53a8aecb/FLAG577ea03ce [2018-12-09 11:33:57,478 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/data/a855519e6/0916d251330f41449e995a4a53a8aecb [2018-12-09 11:33:57,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:33:57,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:33:57,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:33:57,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:33:57,485 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:33:57,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57, skipping insertion in model container [2018-12-09 11:33:57,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:33:57,510 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:33:57,611 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:33:57,614 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:33:57,634 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:33:57,651 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:33:57,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57 WrapperNode [2018-12-09 11:33:57,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:33:57,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:33:57,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:33:57,652 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:33:57,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:33:57,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:33:57,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:33:57,668 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:33:57,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... [2018-12-09 11:33:57,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:33:57,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:33:57,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:33:57,718 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:33:57,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:33:57,747 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-12-09 11:33:57,747 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-12-09 11:33:57,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-09 11:33:57,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:33:57,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:33:57,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:33:57,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 11:33:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-09 11:33:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-09 11:33:57,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-09 11:33:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:33:57,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:33:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:33:57,748 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:33:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 11:33:57,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 11:33:57,868 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 11:33:58,720 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 11:33:58,744 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:33:58,745 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 11:33:58,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:33:58 BoogieIcfgContainer [2018-12-09 11:33:58,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:33:58,745 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:33:58,745 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:33:58,747 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:33:58,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:33:57" (1/3) ... [2018-12-09 11:33:58,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8f06e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:33:58, skipping insertion in model container [2018-12-09 11:33:58,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:33:57" (2/3) ... [2018-12-09 11:33:58,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f8f06e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:33:58, skipping insertion in model container [2018-12-09 11:33:58,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:33:58" (3/3) ... [2018-12-09 11:33:58,749 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052c_true-unreach-call.c [2018-12-09 11:33:58,754 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:33:58,758 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:33:58,767 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:33:58,783 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 11:33:58,783 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:33:58,783 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:33:58,783 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:33:58,783 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:33:58,783 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:33:58,784 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:33:58,784 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:33:58,784 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:33:58,793 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-12-09 11:33:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 11:33:58,796 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:33:58,797 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:33:58,798 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:33:58,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:33:58,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1202696015, now seen corresponding path program 1 times [2018-12-09 11:33:58,803 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:33:58,804 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 11:33:58,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:33:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:33:58,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:33:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:33:58,859 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:33:58,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:33:58,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 11:33:58,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 11:33:58,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 11:33:58,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:33:58,877 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-12-09 11:33:58,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:33:58,891 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-12-09 11:33:58,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 11:33:58,892 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-09 11:33:58,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:33:58,897 INFO L225 Difference]: With dead ends: 94 [2018-12-09 11:33:58,898 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 11:33:58,900 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:33:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 11:33:58,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-12-09 11:33:58,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-12-09 11:33:58,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-12-09 11:33:58,922 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-12-09 11:33:58,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:33:58,923 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-12-09 11:33:58,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 11:33:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-12-09 11:33:58,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 11:33:58,924 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:33:58,924 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:33:58,924 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:33:58,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:33:58,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1688222156, now seen corresponding path program 1 times [2018-12-09 11:33:58,924 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:33:58,925 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 11:33:58,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:33:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:33:58,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:33:59,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:33:59,074 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:33:59,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:33:59,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 11:33:59,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 11:33:59,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 11:33:59,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:33:59,082 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 7 states. [2018-12-09 11:34:01,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:34:01,257 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2018-12-09 11:34:01,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 11:34:01,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-09 11:34:01,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:34:01,260 INFO L225 Difference]: With dead ends: 80 [2018-12-09 11:34:01,260 INFO L226 Difference]: Without dead ends: 39 [2018-12-09 11:34:01,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-09 11:34:01,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-09 11:34:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-12-09 11:34:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 11:34:01,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-12-09 11:34:01,264 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-12-09 11:34:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:34:01,264 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-12-09 11:34:01,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 11:34:01,265 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-12-09 11:34:01,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 11:34:01,265 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:34:01,265 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:34:01,265 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:34:01,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:34:01,266 INFO L82 PathProgramCache]: Analyzing trace with hash 180598350, now seen corresponding path program 1 times [2018-12-09 11:34:01,266 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:34:01,266 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 11:34:01,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:34:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:34:01,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:34:03,076 WARN L180 SmtUtils]: Spent 788.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-09 11:34:03,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:34:03,081 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:34:03,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:34:03,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 11:34:03,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 11:34:03,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 11:34:03,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 11:34:03,090 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-12-09 11:34:05,206 WARN L180 SmtUtils]: Spent 725.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-09 11:34:05,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:34:05,955 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-12-09 11:34:05,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 11:34:05,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-09 11:34:05,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:34:05,963 INFO L225 Difference]: With dead ends: 52 [2018-12-09 11:34:05,963 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 11:34:05,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:34:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 11:34:05,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 11:34:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 11:34:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-12-09 11:34:05,968 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-12-09 11:34:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:34:05,968 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-12-09 11:34:05,968 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 11:34:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-12-09 11:34:05,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 11:34:05,969 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:34:05,969 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:34:05,969 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:34:05,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:34:05,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1037458242, now seen corresponding path program 1 times [2018-12-09 11:34:05,970 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:34:05,970 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 11:34:05,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:34:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:34:06,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:34:06,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:34:06,125 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:34:06,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:34:06,133 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 11:34:06,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 11:34:06,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 11:34:06,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 11:34:06,134 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 6 states. [2018-12-09 11:34:06,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:34:06,565 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-12-09 11:34:06,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 11:34:06,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-09 11:34:06,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:34:06,566 INFO L225 Difference]: With dead ends: 57 [2018-12-09 11:34:06,566 INFO L226 Difference]: Without dead ends: 39 [2018-12-09 11:34:06,567 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 11:34:06,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-09 11:34:06,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-12-09 11:34:06,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 11:34:06,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-12-09 11:34:06,570 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 24 [2018-12-09 11:34:06,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:34:06,570 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-12-09 11:34:06,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 11:34:06,570 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-12-09 11:34:06,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 11:34:06,570 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:34:06,570 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:34:06,571 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:34:06,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:34:06,571 INFO L82 PathProgramCache]: Analyzing trace with hash -729750026, now seen corresponding path program 1 times [2018-12-09 11:34:06,571 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:34:06,571 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 11:34:06,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:34:06,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:34:06,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:34:06,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-12-09 11:34:06,743 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2018-12-09 11:34:06,756 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2018-12-09 11:34:06,756 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 11:34:06,762 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 11:34:06,766 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 11:34:06,778 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 11:34:06,778 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:66, output treesize:36 [2018-12-09 11:34:06,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:34:06,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:34:06,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:34:06,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 11:34:06,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 11:34:06,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 11:34:06,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-09 11:34:06,936 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 10 states. [2018-12-09 11:34:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:34:07,821 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2018-12-09 11:34:07,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 11:34:07,821 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-12-09 11:34:07,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:34:07,822 INFO L225 Difference]: With dead ends: 44 [2018-12-09 11:34:07,822 INFO L226 Difference]: Without dead ends: 41 [2018-12-09 11:34:07,822 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2018-12-09 11:34:07,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-09 11:34:07,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-09 11:34:07,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-09 11:34:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2018-12-09 11:34:07,825 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 25 [2018-12-09 11:34:07,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:34:07,826 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2018-12-09 11:34:07,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 11:34:07,826 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2018-12-09 11:34:07,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 11:34:07,826 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:34:07,826 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:34:07,827 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:34:07,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:34:07,827 INFO L82 PathProgramCache]: Analyzing trace with hash -336723016, now seen corresponding path program 1 times [2018-12-09 11:34:07,827 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:34:07,827 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/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 [2018-12-09 11:34:07,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:34:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:34:07,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:34:07,951 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 11:34:07,952 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 11:34:07,953 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 11:34:07,953 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 11:34:07,954 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 85 [2018-12-09 11:34:08,054 INFO L683 Elim1Store]: detected equality via solver [2018-12-09 11:34:08,065 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 56 [2018-12-09 11:34:08,066 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 19 [2018-12-09 11:34:08,098 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 5 [2018-12-09 11:34:08,099 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,103 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 24 [2018-12-09 11:34:08,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2018-12-09 11:34:08,123 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,133 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,141 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 11:34:08,154 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:71, output treesize:28 [2018-12-09 11:34:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:34:08,218 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:34:08,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:34:08,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 11:34:08,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 11:34:08,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 11:34:08,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 11:34:08,228 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 6 states. [2018-12-09 11:34:08,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:34:08,795 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-12-09 11:34:08,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 11:34:08,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-09 11:34:08,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:34:08,797 INFO L225 Difference]: With dead ends: 52 [2018-12-09 11:34:08,797 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 11:34:08,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 11:34:08,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 11:34:08,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 11:34:08,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 11:34:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-12-09 11:34:08,801 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 25 [2018-12-09 11:34:08,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:34:08,801 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-12-09 11:34:08,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 11:34:08,801 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-12-09 11:34:08,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 11:34:08,802 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:34:08,802 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:34:08,802 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:34:08,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:34:08,803 INFO L82 PathProgramCache]: Analyzing trace with hash -997921541, now seen corresponding path program 1 times [2018-12-09 11:34:08,803 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:34:08,803 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/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 [2018-12-09 11:34:08,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:34:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:34:08,911 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:34:08,945 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 42 [2018-12-09 11:34:08,949 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2018-12-09 11:34:08,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2018-12-09 11:34:08,961 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,964 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,968 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-09 11:34:08,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-09 11:34:08,978 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:58, output treesize:28 [2018-12-09 11:34:11,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:34:11,375 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:34:11,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:34:11,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-12-09 11:34:11,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-09 11:34:11,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-09 11:34:11,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=156, Unknown=1, NotChecked=0, Total=182 [2018-12-09 11:34:11,385 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 14 states. [2018-12-09 11:34:35,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:34:35,249 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-12-09 11:34:35,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 11:34:35,250 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-12-09 11:34:35,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:34:35,250 INFO L225 Difference]: With dead ends: 34 [2018-12-09 11:34:35,250 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 11:34:35,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=71, Invalid=432, Unknown=3, NotChecked=0, Total=506 [2018-12-09 11:34:35,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 11:34:35,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 11:34:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 11:34:35,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 11:34:35,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-12-09 11:34:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:34:35,251 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 11:34:35,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-09 11:34:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 11:34:35,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 11:34:35,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 11:34:35,435 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-12-09 11:34:35,435 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-12-09 11:34:35,435 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-12-09 11:34:35,435 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-12-09 11:34:35,435 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (or (= floor_double_~x |floor_double_#in~x|) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-12-09 11:34:35,435 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-12-09 11:34:35,435 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-12-09 11:34:35,435 INFO L448 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-12-09 11:34:35,435 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L451 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 11:34:35,436 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 11:34:35,437 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 11:34:35,437 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 79 89) no Hoare annotation was computed. [2018-12-09 11:34:35,437 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 79 89) no Hoare annotation was computed. [2018-12-09 11:34:35,437 INFO L448 ceAbstractionStarter]: For program point L82-1(lines 82 86) no Hoare annotation was computed. [2018-12-09 11:34:35,437 INFO L444 ceAbstractionStarter]: At program point L82-2(lines 82 86) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0)) (= |__signbit_double_#in~x| __signbit_double_~x)) [2018-12-09 11:34:35,437 INFO L448 ceAbstractionStarter]: For program point L82-3(lines 82 86) no Hoare annotation was computed. [2018-12-09 11:34:35,437 INFO L451 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 79 89) the Hoare annotation is: true [2018-12-09 11:34:35,437 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 11:34:35,437 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0) [2018-12-09 11:34:35,437 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 11:34:35,437 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 11:34:35,437 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 91 108) the Hoare annotation is: true [2018-12-09 11:34:35,437 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 91 108) no Hoare annotation was computed. [2018-12-09 11:34:35,438 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-12-09 11:34:35,438 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 91 108) no Hoare annotation was computed. [2018-12-09 11:34:35,438 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-09 11:34:35,438 INFO L448 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-12-09 11:34:35,438 INFO L444 ceAbstractionStarter]: At program point L102-1(line 102) the Hoare annotation is: (or (and |main_#t~short10| (= main_~x~0 (fp.neg (_ +zero 11 53))) (exists ((|v_q#valueAsBitvector_7| (_ BitVec 64)) (floor_double_~i1~0 (_ BitVec 32))) (and (= (fp ((_ extract 63 63) |v_q#valueAsBitvector_7|) ((_ extract 62 52) |v_q#valueAsBitvector_7|) ((_ extract 51 0) |v_q#valueAsBitvector_7|)) (fp.neg (_ +zero 11 53))) (= (let ((.cse0 (concat ((_ extract 63 32) |v_q#valueAsBitvector_7|) floor_double_~i1~0))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0)))) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-12-09 11:34:35,438 INFO L448 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-12-09 11:34:35,438 INFO L444 ceAbstractionStarter]: At program point L99(line 99) the Hoare annotation is: (or (= main_~x~0 (fp.neg (_ +zero 11 53))) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-12-09 11:34:35,438 INFO L448 ceAbstractionStarter]: For program point L99-1(line 99) no Hoare annotation was computed. [2018-12-09 11:34:35,438 INFO L448 ceAbstractionStarter]: For program point L102-4(lines 102 105) no Hoare annotation was computed. [2018-12-09 11:34:35,443 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:34:35,446 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:34:35,446 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:34:35,446 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:34:35,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:34:35 BoogieIcfgContainer [2018-12-09 11:34:35,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:34:35,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:34:35,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:34:35,448 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:34:35,449 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:33:58" (3/4) ... [2018-12-09 11:34:35,451 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 11:34:35,455 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-12-09 11:34:35,455 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 11:34:35,455 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-12-09 11:34:35,456 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 11:34:35,459 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-12-09 11:34:35,460 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-09 11:34:35,460 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 11:34:35,478 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) [2018-12-09 11:34:35,478 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x [2018-12-09 11:34:35,497 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3c6128f4-8205-40eb-858f-7ca540b758ce/bin-2019/uautomizer/witness.graphml [2018-12-09 11:34:35,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:34:35,498 INFO L168 Benchmark]: Toolchain (without parser) took 38017.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2018-12-09 11:34:35,499 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:34:35,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.70 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 11:34:35,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.15 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:34:35,500 INFO L168 Benchmark]: Boogie Preprocessor took 49.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:34:35,500 INFO L168 Benchmark]: RCFGBuilder took 1026.98 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-12-09 11:34:35,500 INFO L168 Benchmark]: TraceAbstraction took 36702.52 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -21.2 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. [2018-12-09 11:34:35,500 INFO L168 Benchmark]: Witness Printer took 49.57 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: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-12-09 11:34:35,502 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.70 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.15 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -196.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1026.98 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 36702.52 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -21.2 MB). Peak memory consumption was 43.3 MB. Max. memory is 11.5 GB. * Witness Printer took 49.57 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: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 82]: Loop Invariant [2018-12-09 11:34:35,505 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:34:35,505 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x - InvariantResult [Line: 19]: Loop Invariant [2018-12-09 11:34:35,506 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:34:35,506 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. SAFE Result, 36.6s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 30.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 233 SDtfs, 254 SDslu, 686 SDs, 0 SdLazy, 438 SolverSat, 40 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 23.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 124 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred 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, 7 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 84 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 162 ConstructedInterpolants, 62 QuantifiedInterpolants, 42913 SizeOfPredicates, 26 NumberOfNonLiveVariables, 484 ConjunctsInSsa, 64 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...