./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d ......................................................................................................................................................................................................................................................................................................... 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_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:46:19,377 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:46:19,380 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:46:19,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:46:19,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:46:19,391 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:46:19,392 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:46:19,394 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:46:19,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:46:19,395 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:46:19,396 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:46:19,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:46:19,397 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:46:19,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:46:19,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:46:19,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:46:19,400 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:46:19,401 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:46:19,403 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:46:19,404 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:46:19,404 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:46:19,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:46:19,407 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:46:19,407 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:46:19,408 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:46:19,408 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:46:19,409 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:46:19,410 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:46:19,412 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:46:19,413 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:46:19,413 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:46:19,413 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:46:19,414 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:46:19,414 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:46:19,414 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:46:19,415 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:46:19,415 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 14:46:19,428 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:46:19,428 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:46:19,429 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:46:19,430 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 14:46:19,430 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:46:19,430 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:46:19,430 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:46:19,430 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:46:19,431 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:46:19,432 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:46:19,432 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:46:19,432 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:46:19,432 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:46:19,432 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:46:19,432 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:46:19,432 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:46:19,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:46:19,433 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:46:19,433 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:46:19,433 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:46:19,433 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:46:19,433 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:46:19,433 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_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 -> 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d [2018-11-18 14:46:19,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:46:19,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:46:19,472 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:46:19,473 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:46:19,474 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:46:19,474 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-11-18 14:46:19,521 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data/7e6a801e1/0494b5ffe2764d41b66ed934cb687197/FLAGb92d23121 [2018-11-18 14:46:19,863 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:46:19,863 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-11-18 14:46:19,868 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data/7e6a801e1/0494b5ffe2764d41b66ed934cb687197/FLAGb92d23121 [2018-11-18 14:46:19,884 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data/7e6a801e1/0494b5ffe2764d41b66ed934cb687197 [2018-11-18 14:46:19,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:46:19,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:46:19,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:46:19,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:46:19,892 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:46:19,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:46:19" (1/1) ... [2018-11-18 14:46:19,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66620e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:19, skipping insertion in model container [2018-11-18 14:46:19,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:46:19" (1/1) ... [2018-11-18 14:46:19,903 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:46:19,919 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:46:20,065 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:46:20,067 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:46:20,090 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:46:20,103 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:46:20,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20 WrapperNode [2018-11-18 14:46:20,104 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:46:20,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:46:20,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:46:20,104 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:46:20,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (1/1) ... [2018-11-18 14:46:20,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (1/1) ... [2018-11-18 14:46:20,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (1/1) ... [2018-11-18 14:46:20,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (1/1) ... [2018-11-18 14:46:20,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (1/1) ... [2018-11-18 14:46:20,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (1/1) ... [2018-11-18 14:46:20,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (1/1) ... [2018-11-18 14:46:20,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:46:20,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:46:20,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:46:20,187 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:46:20,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:20,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:46:20,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:46:20,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 14:46:20,235 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-18 14:46:20,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-18 14:46:20,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:46:20,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-18 14:46:20,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:46:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:46:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:46:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 14:46:20,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 14:46:20,602 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:46:20,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:20 BoogieIcfgContainer [2018-11-18 14:46:20,602 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:46:20,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:46:20,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:46:20,606 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:46:20,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:46:19" (1/3) ... [2018-11-18 14:46:20,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3451b6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:46:20, skipping insertion in model container [2018-11-18 14:46:20,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:20" (2/3) ... [2018-11-18 14:46:20,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3451b6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:46:20, skipping insertion in model container [2018-11-18 14:46:20,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:20" (3/3) ... [2018-11-18 14:46:20,609 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a_true-unreach-call.c [2018-11-18 14:46:20,618 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:46:20,625 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:46:20,639 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:46:20,665 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:46:20,666 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:46:20,666 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:46:20,666 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:46:20,666 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:46:20,666 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:46:20,667 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:46:20,667 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:46:20,667 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:46:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 14:46:20,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 14:46:20,688 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:20,689 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:20,691 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:20,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:20,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1001908722, now seen corresponding path program 1 times [2018-11-18 14:46:20,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:46:20,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:46:20,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:20,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:20,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:20,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:20,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:20,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:46:20,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:46:20,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:46:20,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:46:20,830 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 14:46:20,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:20,849 INFO L93 Difference]: Finished difference Result 78 states and 109 transitions. [2018-11-18 14:46:20,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:46:20,850 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-18 14:46:20,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:20,858 INFO L225 Difference]: With dead ends: 78 [2018-11-18 14:46:20,858 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 14:46:20,861 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:46:20,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 14:46:20,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 14:46:20,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 14:46:20,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2018-11-18 14:46:20,890 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 19 [2018-11-18 14:46:20,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:20,890 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2018-11-18 14:46:20,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:46:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2018-11-18 14:46:20,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 14:46:20,892 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:20,892 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:20,892 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:20,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:20,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1693634486, now seen corresponding path program 1 times [2018-11-18 14:46:20,893 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:46:20,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:46:20,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:20,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:20,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:46:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:46:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:46:20,968 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:46:20,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:46:20 BoogieIcfgContainer [2018-11-18 14:46:20,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:46:20,989 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:46:20,989 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:46:20,989 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:46:20,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:20" (3/4) ... [2018-11-18 14:46:20,992 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:46:20,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:46:20,993 INFO L168 Benchmark]: Toolchain (without parser) took 1105.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -158.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:20,994 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:46:20,994 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.81 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 947.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:20,995 INFO L168 Benchmark]: Boogie Preprocessor took 81.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 947.3 MB in the beginning and 1.2 GB in the end (delta: -234.5 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:20,995 INFO L168 Benchmark]: RCFGBuilder took 415.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:20,996 INFO L168 Benchmark]: TraceAbstraction took 385.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:20,996 INFO L168 Benchmark]: Witness Printer took 3.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:46:20,999 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 214.81 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 947.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 947.3 MB in the beginning and 1.2 GB in the end (delta: -234.5 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 415.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 385.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 90, overapproximation of shiftRight at line 34, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L86] double x = 0.0; VAL [x=0] [L87] CALL, EXPR round_double(x) VAL [\old(x)=0] [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; VAL [\old(x)=0, x=0] [L21] FCALL ieee_double_shape_type ew_u; [L22] FCALL ew_u.value = (x) [L23] EXPR, FCALL ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR, FCALL ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L25] COND FALSE !(0) VAL [\old(x)=0, lsw=0, msw=-2147483648, x=0] [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=-2147483648, x=0] [L27] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=-2147483648, x=0] [L28] COND FALSE !(exponent_less_1023 < 0) [L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=-2147483648, x=0] [L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L36] RET return x; VAL [\old(x)=0, \result=0, exponent_less_1023=0, lsw=0, msw=-2147483648, x=0] [L87] EXPR round_double(x) VAL [round_double(x)=0, x=0] [L87] double res = round_double(x); [L90] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L90] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L91] __VERIFIER_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 46 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 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=43occurred 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 0.1.23-5842f4b [2018-11-18 14:46:22,696 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:46:22,697 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:46:22,708 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:46:22,709 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:46:22,710 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:46:22,711 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:46:22,712 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:46:22,714 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:46:22,714 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:46:22,715 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:46:22,715 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:46:22,716 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:46:22,716 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:46:22,718 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:46:22,718 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:46:22,719 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:46:22,720 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:46:22,722 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:46:22,723 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:46:22,724 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:46:22,725 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:46:22,727 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:46:22,727 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:46:22,727 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:46:22,728 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:46:22,729 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:46:22,730 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:46:22,731 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:46:22,732 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:46:22,732 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:46:22,732 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:46:22,732 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:46:22,733 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:46:22,734 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:46:22,735 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:46:22,735 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 14:46:22,747 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:46:22,748 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:46:22,748 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:46:22,749 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 14:46:22,749 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:46:22,750 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:46:22,750 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:46:22,750 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:46:22,750 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:46:22,750 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:46:22,750 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:46:22,750 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:46:22,751 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:46:22,751 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:46:22,751 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:46:22,751 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:46:22,751 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:46:22,751 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:46:22,751 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:46:22,752 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:46:22,752 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:46:22,752 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:46:22,752 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:46:22,752 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:46:22,752 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:46:22,752 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:46:22,753 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:46:22,753 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:46:22,753 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 14:46:22,755 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:46:22,755 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:46:22,755 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:46:22,755 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_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 -> 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d [2018-11-18 14:46:22,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:46:22,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:46:22,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:46:22,800 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:46:22,801 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:46:22,801 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-11-18 14:46:22,852 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data/f3af1f663/546890f606c6443784dab90614ab9c2c/FLAGf3d94eb59 [2018-11-18 14:46:23,201 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:46:23,202 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-11-18 14:46:23,207 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data/f3af1f663/546890f606c6443784dab90614ab9c2c/FLAGf3d94eb59 [2018-11-18 14:46:23,623 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/data/f3af1f663/546890f606c6443784dab90614ab9c2c [2018-11-18 14:46:23,626 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:46:23,627 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:46:23,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:46:23,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:46:23,634 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:46:23,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689feb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23, skipping insertion in model container [2018-11-18 14:46:23,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,642 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:46:23,659 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:46:23,832 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:46:23,838 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:46:23,865 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:46:23,887 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:46:23,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23 WrapperNode [2018-11-18 14:46:23,887 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:46:23,888 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:46:23,888 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:46:23,888 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:46:23,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (1/1) ... [2018-11-18 14:46:23,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:46:23,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:46:23,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:46:23,931 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:46:23,932 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:46:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:46:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 14:46:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-18 14:46:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-18 14:46:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 14:46:24,018 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-18 14:46:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:46:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:46:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:46:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 14:46:24,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 14:46:24,145 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:46:24,392 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:46:24,423 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:46:24,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:24 BoogieIcfgContainer [2018-11-18 14:46:24,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:46:24,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:46:24,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:46:24,426 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:46:24,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:46:23" (1/3) ... [2018-11-18 14:46:24,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcde2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:46:24, skipping insertion in model container [2018-11-18 14:46:24,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:46:23" (2/3) ... [2018-11-18 14:46:24,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dcde2e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:46:24, skipping insertion in model container [2018-11-18 14:46:24,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:24" (3/3) ... [2018-11-18 14:46:24,430 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a_true-unreach-call.c [2018-11-18 14:46:24,437 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:46:24,443 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:46:24,456 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:46:24,478 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:46:24,478 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:46:24,478 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:46:24,478 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:46:24,478 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:46:24,478 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:46:24,478 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:46:24,478 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:46:24,478 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:46:24,490 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 14:46:24,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 14:46:24,495 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:24,496 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:24,498 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:24,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:24,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1001908722, now seen corresponding path program 1 times [2018-11-18 14:46:24,503 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:46:24,504 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:24,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:24,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:46:24,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:24,563 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:46:24,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:24,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:46:24,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:46:24,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:46:24,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:46:24,582 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 14:46:24,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:24,600 INFO L93 Difference]: Finished difference Result 78 states and 109 transitions. [2018-11-18 14:46:24,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:46:24,601 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-18 14:46:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:24,609 INFO L225 Difference]: With dead ends: 78 [2018-11-18 14:46:24,609 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 14:46:24,611 INFO L604 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 [2018-11-18 14:46:24,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 14:46:24,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 14:46:24,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 14:46:24,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2018-11-18 14:46:24,644 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 19 [2018-11-18 14:46:24,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:24,644 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2018-11-18 14:46:24,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:46:24,644 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2018-11-18 14:46:24,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 14:46:24,645 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:24,645 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:24,645 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:24,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:24,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1693634486, now seen corresponding path program 1 times [2018-11-18 14:46:24,646 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:46:24,646 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:24,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:24,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:46:24,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:24,862 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:46:24,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:24,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:46:24,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:46:24,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:46:24,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:46:24,871 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 7 states. [2018-11-18 14:46:25,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:25,350 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-11-18 14:46:25,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:46:25,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 14:46:25,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:25,353 INFO L225 Difference]: With dead ends: 48 [2018-11-18 14:46:25,353 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 14:46:25,354 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:46:25,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 14:46:25,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-11-18 14:46:25,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 14:46:25,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-11-18 14:46:25,360 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 20 [2018-11-18 14:46:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:25,360 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-11-18 14:46:25,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:46:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-11-18 14:46:25,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 14:46:25,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:25,362 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:25,362 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:25,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:25,362 INFO L82 PathProgramCache]: Analyzing trace with hash -1142194531, now seen corresponding path program 1 times [2018-11-18 14:46:25,363 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:46:25,363 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:25,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:25,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:46:26,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:26,336 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:46:26,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:26,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:46:26,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:46:26,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:46:26,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:46:26,344 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 7 states. [2018-11-18 14:46:27,279 WARN L180 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 14:46:27,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:27,968 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-11-18 14:46:27,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:46:27,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 14:46:27,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:27,970 INFO L225 Difference]: With dead ends: 50 [2018-11-18 14:46:27,970 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 14:46:27,970 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:46:27,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 14:46:27,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-11-18 14:46:27,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 14:46:27,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-11-18 14:46:27,977 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 20 [2018-11-18 14:46:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:27,977 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-11-18 14:46:27,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:46:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-11-18 14:46:27,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:46:27,978 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:27,978 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:27,979 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:27,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:27,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1014616426, now seen corresponding path program 1 times [2018-11-18 14:46:27,979 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:46:27,980 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:28,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:28,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:46:28,155 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:28,156 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:28,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 14:46:28,273 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2018-11-18 14:46:28,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 27 treesize of output 24 [2018-11-18 14:46:28,285 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:28,298 INFO L477 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 24 treesize of output 18 [2018-11-18 14:46:28,314 INFO L477 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 18 treesize of output 4 [2018-11-18 14:46:28,315 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:28,323 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:28,326 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:28,333 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:46:28,333 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 14:46:28,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:28,478 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:46:28,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:28,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:46:28,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:46:28,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:46:28,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:46:28,492 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 7 states. [2018-11-18 14:46:29,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:29,606 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2018-11-18 14:46:29,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 14:46:29,607 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-18 14:46:29,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:29,608 INFO L225 Difference]: With dead ends: 67 [2018-11-18 14:46:29,608 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 14:46:29,608 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-11-18 14:46:29,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 14:46:29,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 14:46:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 14:46:29,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-11-18 14:46:29,611 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 23 [2018-11-18 14:46:29,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:29,612 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-11-18 14:46:29,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:46:29,612 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-11-18 14:46:29,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:46:29,612 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:29,612 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:29,613 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:29,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:29,613 INFO L82 PathProgramCache]: Analyzing trace with hash 355975440, now seen corresponding path program 1 times [2018-11-18 14:46:29,613 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:46:29,613 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:29,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:29,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:29,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:46:29,688 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:29,689 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:29,690 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 14:46:29,733 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 27 treesize of output 24 [2018-11-18 14:46:29,733 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:29,744 INFO L477 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 24 treesize of output 18 [2018-11-18 14:46:29,749 INFO L477 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 18 treesize of output 4 [2018-11-18 14:46:29,749 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:29,752 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:29,754 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:29,760 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:46:29,760 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 14:46:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:29,833 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:46:29,846 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:29,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:46:29,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:46:29,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:46:29,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:46:29,847 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 7 states. [2018-11-18 14:46:30,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:30,175 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2018-11-18 14:46:30,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 14:46:30,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 14:46:30,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:30,177 INFO L225 Difference]: With dead ends: 52 [2018-11-18 14:46:30,177 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 14:46:30,178 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:46:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 14:46:30,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 14:46:30,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 14:46:30,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-11-18 14:46:30,181 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 24 [2018-11-18 14:46:30,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:30,182 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-11-18 14:46:30,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:46:30,182 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-11-18 14:46:30,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:46:30,183 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:30,183 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:30,183 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:30,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:30,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1057040018, now seen corresponding path program 1 times [2018-11-18 14:46:30,183 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:46:30,184 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:30,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:30,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:46:30,251 INFO L477 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 51 treesize of output 45 [2018-11-18 14:46:30,253 INFO L477 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 45 treesize of output 38 [2018-11-18 14:46:30,263 INFO L477 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 29 treesize of output 21 [2018-11-18 14:46:30,264 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,266 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,268 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,273 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:46:30,274 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:51, output treesize:21 [2018-11-18 14:46:30,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:30,327 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:46:30,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:30,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:46:30,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:46:30,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:46:30,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:46:30,336 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 8 states. [2018-11-18 14:46:30,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:30,458 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2018-11-18 14:46:30,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:46:30,458 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2018-11-18 14:46:30,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:30,459 INFO L225 Difference]: With dead ends: 36 [2018-11-18 14:46:30,459 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 14:46:30,459 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:46:30,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 14:46:30,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 14:46:30,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 14:46:30,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-11-18 14:46:30,461 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 24 [2018-11-18 14:46:30,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:30,462 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-11-18 14:46:30,462 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:46:30,462 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-11-18 14:46:30,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 14:46:30,462 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:46:30,463 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:46:30,463 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:46:30,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:46:30,463 INFO L82 PathProgramCache]: Analyzing trace with hash -2106493911, now seen corresponding path program 1 times [2018-11-18 14:46:30,463 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:46:30,463 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/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 [2018-11-18 14:46:30,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:46:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:46:30,579 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:46:30,603 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:30,604 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:30,605 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 14:46:30,643 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:30,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 14:46:30,653 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,670 INFO L477 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 24 treesize of output 18 [2018-11-18 14:46:30,683 INFO L477 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 18 treesize of output 4 [2018-11-18 14:46:30,683 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,685 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,687 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,693 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:46:30,693 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 14:46:30,732 INFO L477 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 54 treesize of output 48 [2018-11-18 14:46:30,736 INFO L477 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 48 treesize of output 39 [2018-11-18 14:46:30,747 INFO L477 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 30 treesize of output 24 [2018-11-18 14:46:30,748 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,751 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,765 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:30,774 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. [2018-11-18 14:46:30,774 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:64, output treesize:34 [2018-11-18 14:46:31,017 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:31,018 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:46:31,019 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 14:46:31,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 27 treesize of output 24 [2018-11-18 14:46:31,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:31,074 INFO L477 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 24 treesize of output 18 [2018-11-18 14:46:31,080 INFO L477 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 18 treesize of output 4 [2018-11-18 14:46:31,080 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 14:46:31,083 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:31,086 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 14:46:31,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 14:46:31,093 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 14:46:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:46:31,319 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:46:31,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:46:31,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 14:46:31,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 14:46:31,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 14:46:31,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-18 14:46:31,329 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 15 states. [2018-11-18 14:46:32,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:46:32,680 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-11-18 14:46:32,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-18 14:46:32,680 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 32 [2018-11-18 14:46:32,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:46:32,681 INFO L225 Difference]: With dead ends: 33 [2018-11-18 14:46:32,681 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:46:32,681 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2018-11-18 14:46:32,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:46:32,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:46:32,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:46:32,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:46:32,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-18 14:46:32,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:46:32,682 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:46:32,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 14:46:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:46:32,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:46:32,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:46:32,744 INFO L425 ceAbstractionStarter]: For program point isnan_doubleENTRY(line 15) no Hoare annotation was computed. [2018-11-18 14:46:32,744 INFO L425 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-11-18 14:46:32,744 INFO L425 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-11-18 14:46:32,744 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:46:32,744 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:46:32,744 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 56) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point round_doubleFINAL(lines 17 64) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L428 ceAbstractionStarter]: At program point round_doubleENTRY(lines 17 64) the Hoare annotation is: true [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 40) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L57-2(lines 17 64) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point round_doubleEXIT(lines 17 64) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L57-3(lines 57 62) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L421 ceAbstractionStarter]: At program point L20-3(lines 20 25) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L20-4(lines 20 25) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 56) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 45) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L30-2(lines 30 31) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point L69-4(lines 69 73) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 66 76) no Hoare annotation was computed. [2018-11-18 14:46:32,745 INFO L425 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 66 76) no Hoare annotation was computed. [2018-11-18 14:46:32,746 INFO L428 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 66 76) the Hoare annotation is: true [2018-11-18 14:46:32,746 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 69 73) no Hoare annotation was computed. [2018-11-18 14:46:32,746 INFO L421 ceAbstractionStarter]: At program point L69-3(lines 69 73) the Hoare annotation is: (= |__signbit_double_#in~x| __signbit_double_~x) [2018-11-18 14:46:32,746 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:46:32,746 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:46:32,746 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:46:32,746 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:46:32,746 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-11-18 14:46:32,746 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-11-18 14:46:32,746 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 14:46:32,746 INFO L425 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2018-11-18 14:46:32,747 INFO L421 ceAbstractionStarter]: At program point L90-1(line 90) the Hoare annotation is: (and (= (_ +zero 11 53) main_~x~0) |main_#t~short10| (exists ((v_prenex_9 (_ BitVec 64)) (round_double_~lsw~0 (_ BitVec 32))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) v_prenex_9) ((_ extract 62 52) v_prenex_9) ((_ extract 51 0) v_prenex_9))) (= (let ((.cse0 (concat (bvand (_ bv2147483648 32) ((_ extract 63 32) v_prenex_9)) round_double_~lsw~0))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0)))) [2018-11-18 14:46:32,747 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-11-18 14:46:32,747 INFO L425 ceAbstractionStarter]: For program point L90-2(line 90) no Hoare annotation was computed. [2018-11-18 14:46:32,747 INFO L421 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= (_ +zero 11 53) main_~x~0) [2018-11-18 14:46:32,747 INFO L425 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-11-18 14:46:32,747 INFO L425 ceAbstractionStarter]: For program point L90-4(lines 90 93) no Hoare annotation was computed. [2018-11-18 14:46:32,747 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-11-18 14:46:32,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:46:32 BoogieIcfgContainer [2018-11-18 14:46:32,756 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:46:32,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:46:32,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:46:32,756 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:46:32,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:46:24" (3/4) ... [2018-11-18 14:46:32,759 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:46:32,763 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-11-18 14:46:32,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:46:32,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-11-18 14:46:32,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-11-18 14:46:32,764 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:46:32,768 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 14:46:32,768 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 14:46:32,768 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:46:32,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 14:46:32,788 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 14:46:32,807 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2c29d7c6-83c9-43e3-804a-5e5ff41afcf8/bin-2019/uautomizer/witness.graphml [2018-11-18 14:46:32,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:46:32,808 INFO L168 Benchmark]: Toolchain (without parser) took 9181.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.1 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -168.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:32,808 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:46:32,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.78 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:32,809 INFO L168 Benchmark]: Boogie Preprocessor took 42.47 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:46:32,809 INFO L168 Benchmark]: RCFGBuilder took 493.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:32,809 INFO L168 Benchmark]: TraceAbstraction took 8331.21 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:46:32,809 INFO L168 Benchmark]: Witness Printer took 51.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:46:32,811 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 259.78 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.47 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 493.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8331.21 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.9 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. * Witness Printer took 51.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: 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: 20]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 46 locations, 1 error locations. SAFE Result, 8.2s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 5.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 238 SDtfs, 177 SDslu, 909 SDs, 0 SdLazy, 368 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 185 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 55 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 155 ConstructedInterpolants, 47 QuantifiedInterpolants, 31072 SizeOfPredicates, 27 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 61 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...