./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1031_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1031_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 b9e27277237c869a286fcb7699394ad2f7d80117 ........................................................................................................................................................................................................................................................................................................................ 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_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1031_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 b9e27277237c869a286fcb7699394ad2f7d80117 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:56:10,406 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:56:10,407 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:56:10,415 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:56:10,415 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:56:10,416 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:56:10,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:56:10,418 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:56:10,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:56:10,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:56:10,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:56:10,420 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:56:10,421 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:56:10,421 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:56:10,422 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:56:10,423 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:56:10,423 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:56:10,425 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:56:10,426 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:56:10,427 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:56:10,428 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:56:10,429 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:56:10,430 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:56:10,431 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:56:10,431 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:56:10,431 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:56:10,432 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:56:10,433 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:56:10,433 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:56:10,434 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:56:10,434 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:56:10,435 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:56:10,435 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:56:10,435 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:56:10,436 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:56:10,436 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:56:10,436 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:56:10,446 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:56:10,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:56:10,447 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:56:10,447 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:56:10,448 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:56:10,448 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:56:10,448 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:56:10,448 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:56:10,448 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:56:10,448 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:56:10,449 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:56:10,449 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:56:10,449 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:56:10,449 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:56:10,449 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:56:10,449 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:56:10,449 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:56:10,449 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:56:10,450 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:56:10,450 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:56:10,450 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:56:10,450 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:56:10,450 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:56:10,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:56:10,451 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:56:10,451 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:56:10,451 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:56:10,451 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:56:10,451 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:56:10,451 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:56:10,451 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_b742f367-9193-4849-ae84-19c71f4dacbc/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 -> b9e27277237c869a286fcb7699394ad2f7d80117 [2018-11-28 11:56:10,474 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:56:10,482 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:56:10,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:56:10,485 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:56:10,486 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:56:10,486 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-11-28 11:56:10,523 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data/c17f555cf/183804db31464380a5159b176ce6fba6/FLAGb470bda79 [2018-11-28 11:56:10,919 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:56:10,920 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/sv-benchmarks/c/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-11-28 11:56:10,925 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data/c17f555cf/183804db31464380a5159b176ce6fba6/FLAGb470bda79 [2018-11-28 11:56:10,935 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data/c17f555cf/183804db31464380a5159b176ce6fba6 [2018-11-28 11:56:10,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:56:10,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:56:10,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:56:10,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:56:10,941 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:56:10,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:10" (1/1) ... [2018-11-28 11:56:10,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5168306f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:10, skipping insertion in model container [2018-11-28 11:56:10,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:10" (1/1) ... [2018-11-28 11:56:10,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:56:10,963 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:56:11,068 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:56:11,070 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:56:11,087 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:56:11,099 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:56:11,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11 WrapperNode [2018-11-28 11:56:11,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:56:11,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:56:11,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:56:11,100 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:56:11,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:56:11,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:56:11,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:56:11,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:56:11,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... [2018-11-28 11:56:11,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:56:11,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:56:11,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:56:11,182 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:56:11,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 [2018-11-28 11:56:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 11:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 11:56:11,219 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 11:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:56:11,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 11:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-28 11:56:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-28 11:56:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:56:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:56:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:56:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:56:11,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:56:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:56:11,432 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:56:11,432 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 11:56:11,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:11 BoogieIcfgContainer [2018-11-28 11:56:11,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:56:11,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:56:11,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:56:11,436 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:56:11,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:56:10" (1/3) ... [2018-11-28 11:56:11,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d5a6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:56:11, skipping insertion in model container [2018-11-28 11:56:11,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:11" (2/3) ... [2018-11-28 11:56:11,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d5a6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:56:11, skipping insertion in model container [2018-11-28 11:56:11,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:11" (3/3) ... [2018-11-28 11:56:11,439 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031_true-unreach-call.c [2018-11-28 11:56:11,448 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:56:11,453 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:56:11,466 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:56:11,489 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:56:11,490 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:56:11,490 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:56:11,490 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:56:11,490 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:56:11,490 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:56:11,490 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:56:11,490 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:56:11,490 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:56:11,501 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-28 11:56:11,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:56:11,505 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:56:11,506 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:56:11,508 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:56:11,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:56:11,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1071653874, now seen corresponding path program 1 times [2018-11-28 11:56:11,513 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:56:11,513 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:56:11,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:56:11,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:56:11,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:56:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:56:11,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:56:11,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:56:11,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:56:11,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:56:11,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:56:11,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:56:11,624 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-11-28 11:56:11,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:56:11,636 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2018-11-28 11:56:11,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:56:11,637 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 11:56:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:56:11,643 INFO L225 Difference]: With dead ends: 70 [2018-11-28 11:56:11,644 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 11:56:11,645 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:56:11,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 11:56:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-28 11:56:11,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-28 11:56:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-11-28 11:56:11,668 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 23 [2018-11-28 11:56:11,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:56:11,668 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-11-28 11:56:11,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:56:11,668 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-11-28 11:56:11,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 11:56:11,669 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:56:11,669 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:56:11,669 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:56:11,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:56:11,671 INFO L82 PathProgramCache]: Analyzing trace with hash -308920579, now seen corresponding path program 1 times [2018-11-28 11:56:11,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:56:11,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:56:11,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:56:11,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:56:11,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:56:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:56:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:56:11,738 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:56:11,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:56:11 BoogieIcfgContainer [2018-11-28 11:56:11,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:56:11,757 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:56:11,757 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:56:11,757 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:56:11,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:11" (3/4) ... [2018-11-28 11:56:11,761 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:56:11,761 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:56:11,762 INFO L168 Benchmark]: Toolchain (without parser) took 824.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -131.5 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:11,763 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:56:11,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.48 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:11,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:11,765 INFO L168 Benchmark]: Boogie Preprocessor took 26.36 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:11,765 INFO L168 Benchmark]: RCFGBuilder took 251.44 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:11,766 INFO L168 Benchmark]: TraceAbstraction took 323.44 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:11,766 INFO L168 Benchmark]: Witness Printer took 3.95 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. [2018-11-28 11:56:11,769 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.48 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 947.9 MB in the beginning and 1.1 GB in the end (delta: -197.4 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.36 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 251.44 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: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 323.44 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: 30.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.95 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: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 34, overapproximation of someBinaryArithmeticDOUBLEoperation at line 74, overapproximation of bitwiseAnd at line 35, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L74] double x = 0.0 / 0.0; [L75] CALL, EXPR round_double(x) VAL [\old(x)=6442450946] [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; VAL [\old(x)=6442450946, x=6442450946] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=6442450946, exponent_less_1023=0, lsw=0, msw=-2147483648, x=6442450946] [L27] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=6442450946, exponent_less_1023=0, lsw=0, msw=-2147483648, x=6442450946] [L28] COND FALSE !(exponent_less_1023 < 0) [L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=6442450946, exponent_less_1023=0, lsw=0, msw=-2147483648, x=6442450946] [L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L36] return x; VAL [\old(x)=6442450946, \result=6442450946, exponent_less_1023=0, lsw=0, msw=-2147483648, x=6442450946] [L75] RET, EXPR round_double(x) VAL [round_double(x)=6442450946, x=6442450946] [L75] double res = round_double(x); [L78] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450946] [L15] return x != x; VAL [\old(x)=6442450946, \result=0, x=6442450946] [L78] RET, EXPR isnan_double(res) VAL [isnan_double(res)=0, res=6442450946, x=6442450946] [L78] COND TRUE !isnan_double(res) [L79] __VERIFIER_error() VAL [res=6442450946, x=6442450946] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 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=39occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 0.1.23-0cd3be1 [2018-11-28 11:56:13,180 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:56:13,181 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:56:13,189 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:56:13,189 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:56:13,189 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:56:13,190 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:56:13,191 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:56:13,192 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:56:13,193 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:56:13,193 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:56:13,194 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:56:13,195 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:56:13,195 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:56:13,196 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:56:13,197 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:56:13,197 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:56:13,199 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:56:13,200 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:56:13,201 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:56:13,202 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:56:13,203 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:56:13,205 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:56:13,205 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:56:13,205 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:56:13,206 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:56:13,207 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:56:13,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:56:13,208 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:56:13,209 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:56:13,209 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:56:13,209 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:56:13,210 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:56:13,210 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:56:13,211 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:56:13,211 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:56:13,212 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 11:56:13,222 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:56:13,222 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:56:13,222 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:56:13,223 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:56:13,223 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:56:13,223 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:56:13,223 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:56:13,223 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:56:13,224 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:56:13,225 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:56:13,225 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:56:13,225 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:56:13,225 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:56:13,225 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:56:13,225 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:56:13,225 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:56:13,225 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:56:13,225 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:56:13,226 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:56:13,226 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 11:56:13,226 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:56:13,226 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 11:56:13,226 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 11:56:13,226 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_b742f367-9193-4849-ae84-19c71f4dacbc/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 -> b9e27277237c869a286fcb7699394ad2f7d80117 [2018-11-28 11:56:13,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:56:13,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:56:13,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:56:13,264 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:56:13,264 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:56:13,265 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-11-28 11:56:13,309 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data/b976646dd/92d15d2a5db9479aa58ba14984a4093f/FLAG98c8798cf [2018-11-28 11:56:13,706 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:56:13,707 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/sv-benchmarks/c/float-newlib/double_req_bl_1031_true-unreach-call.c [2018-11-28 11:56:13,711 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data/b976646dd/92d15d2a5db9479aa58ba14984a4093f/FLAG98c8798cf [2018-11-28 11:56:13,719 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/data/b976646dd/92d15d2a5db9479aa58ba14984a4093f [2018-11-28 11:56:13,721 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:56:13,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:56:13,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:56:13,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:56:13,726 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:56:13,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:13,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3eb2d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13, skipping insertion in model container [2018-11-28 11:56:13,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:13,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:56:13,749 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:56:13,875 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:56:13,880 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:56:13,902 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:56:13,924 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:56:13,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13 WrapperNode [2018-11-28 11:56:13,925 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:56:13,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:56:13,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:56:13,926 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:56:13,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:13,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:13,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:56:13,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:56:13,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:56:13,943 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:56:13,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:13,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:13,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:13,993 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:14,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:14,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:14,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... [2018-11-28 11:56:14,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:56:14,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:56:14,013 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:56:14,013 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:56:14,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 [2018-11-28 11:56:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 11:56:14,048 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 11:56:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 11:56:14,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:56:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:56:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:56:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 11:56:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 11:56:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-28 11:56:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-28 11:56:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:56:14,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:56:14,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:56:14,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:56:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 11:56:14,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:56:14,188 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:56:14,293 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:56:14,293 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 11:56:14,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:14 BoogieIcfgContainer [2018-11-28 11:56:14,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:56:14,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:56:14,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:56:14,297 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:56:14,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:56:13" (1/3) ... [2018-11-28 11:56:14,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3c8c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:56:14, skipping insertion in model container [2018-11-28 11:56:14,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:56:13" (2/3) ... [2018-11-28 11:56:14,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3c8c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:56:14, skipping insertion in model container [2018-11-28 11:56:14,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:14" (3/3) ... [2018-11-28 11:56:14,301 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031_true-unreach-call.c [2018-11-28 11:56:14,307 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:56:14,312 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:56:14,321 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:56:14,339 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:56:14,340 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:56:14,340 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:56:14,340 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:56:14,340 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:56:14,340 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:56:14,340 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:56:14,340 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:56:14,340 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:56:14,349 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-28 11:56:14,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 11:56:14,353 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:56:14,353 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:56:14,355 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:56:14,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:56:14,358 INFO L82 PathProgramCache]: Analyzing trace with hash -671872189, now seen corresponding path program 1 times [2018-11-28 11:56:14,360 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:56:14,361 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 [2018-11-28 11:56:14,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:56:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:56:14,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:56:14,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:56:14,423 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:56:14,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:56:14,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:56:14,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:56:14,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:56:14,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:56:14,446 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-28 11:56:14,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:56:14,458 INFO L93 Difference]: Finished difference Result 68 states and 92 transitions. [2018-11-28 11:56:14,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:56:14,459 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 11:56:14,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:56:14,467 INFO L225 Difference]: With dead ends: 68 [2018-11-28 11:56:14,468 INFO L226 Difference]: Without dead ends: 34 [2018-11-28 11:56:14,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:56:14,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-28 11:56:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-28 11:56:14,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 11:56:14,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-11-28 11:56:14,495 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-11-28 11:56:14,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:56:14,496 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-28 11:56:14,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:56:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-11-28 11:56:14,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:56:14,497 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:56:14,497 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:56:14,497 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:56:14,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:56:14,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1325068332, now seen corresponding path program 1 times [2018-11-28 11:56:14,498 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:56:14,498 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 [2018-11-28 11:56:14,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:56:14,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:56:14,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:56:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:56:14,716 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:56:14,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:56:14,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 11:56:14,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 11:56:14,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 11:56:14,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:56:14,729 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-11-28 11:56:15,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:56:15,252 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2018-11-28 11:56:15,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 11:56:15,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 11:56:15,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:56:15,255 INFO L225 Difference]: With dead ends: 43 [2018-11-28 11:56:15,255 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 11:56:15,256 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:56:15,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 11:56:15,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-28 11:56:15,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 11:56:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2018-11-28 11:56:15,263 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 23 [2018-11-28 11:56:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:56:15,263 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2018-11-28 11:56:15,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 11:56:15,264 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2018-11-28 11:56:15,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:56:15,264 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:56:15,264 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:56:15,265 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:56:15,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:56:15,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1627276127, now seen corresponding path program 1 times [2018-11-28 11:56:15,265 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:56:15,266 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 [2018-11-28 11:56:15,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:56:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:56:15,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:56:15,730 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-28 11:56:16,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:56:16,371 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:56:16,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:56:16,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 11:56:16,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 11:56:16,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 11:56:16,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:56:16,379 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand 9 states. [2018-11-28 11:56:17,806 WARN L180 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 11:56:18,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:56:18,694 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2018-11-28 11:56:18,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 11:56:18,695 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 11:56:18,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:56:18,696 INFO L225 Difference]: With dead ends: 41 [2018-11-28 11:56:18,697 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 11:56:18,697 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:56:18,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 11:56:18,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 11:56:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 11:56:18,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-28 11:56:18,701 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 23 [2018-11-28 11:56:18,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:56:18,702 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-28 11:56:18,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 11:56:18,702 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-28 11:56:18,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 11:56:18,703 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:56:18,703 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:56:18,703 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:56:18,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:56:18,704 INFO L82 PathProgramCache]: Analyzing trace with hash -560603808, now seen corresponding path program 1 times [2018-11-28 11:56:18,704 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:56:18,704 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 [2018-11-28 11:56:18,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:56:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:56:18,764 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:56:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:56:18,903 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:56:18,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:56:18,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 11:56:18,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 11:56:18,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 11:56:18,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:56:18,914 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 7 states. [2018-11-28 11:56:19,460 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-11-28 11:56:19,726 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-11-28 11:56:19,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:56:19,863 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2018-11-28 11:56:19,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-28 11:56:19,864 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 11:56:19,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:56:19,865 INFO L225 Difference]: With dead ends: 52 [2018-11-28 11:56:19,865 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 11:56:19,865 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2018-11-28 11:56:19,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 11:56:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2018-11-28 11:56:19,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-28 11:56:19,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2018-11-28 11:56:19,869 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 26 [2018-11-28 11:56:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:56:19,869 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2018-11-28 11:56:19,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 11:56:19,869 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2018-11-28 11:56:19,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 11:56:19,870 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:56:19,870 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:56:19,870 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:56:19,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:56:19,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1924804585, now seen corresponding path program 1 times [2018-11-28 11:56:19,870 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:56:19,871 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/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 [2018-11-28 11:56:19,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:56:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:56:19,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:56:20,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:56:20,065 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:56:20,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:56:20,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 11:56:20,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 11:56:20,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 11:56:20,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 11:56:20,074 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand 8 states. [2018-11-28 11:56:20,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:56:20,876 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-11-28 11:56:20,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 11:56:20,877 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-11-28 11:56:20,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:56:20,877 INFO L225 Difference]: With dead ends: 35 [2018-11-28 11:56:20,877 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:56:20,878 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2018-11-28 11:56:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:56:20,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:56:20,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:56:20,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:56:20,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-11-28 11:56:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:56:20,878 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:56:20,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 11:56:20,878 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:56:20,878 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:56:20,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:56:20,963 INFO L451 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 15) the Hoare annotation is: true [2018-11-28 11:56:20,963 INFO L448 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 15) no Hoare annotation was computed. [2018-11-28 11:56:20,963 INFO L448 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 15) no Hoare annotation was computed. [2018-11-28 11:56:20,963 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:56:20,963 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:56:20,963 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:56:20,963 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 56) no Hoare annotation was computed. [2018-11-28 11:56:20,963 INFO L448 ceAbstractionStarter]: For program point round_doubleFINAL(lines 17 64) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L448 ceAbstractionStarter]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L451 ceAbstractionStarter]: At program point round_doubleENTRY(lines 17 64) the Hoare annotation is: true [2018-11-28 11:56:20,964 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 40) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 17 64) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L448 ceAbstractionStarter]: For program point L57-2(lines 57 62) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L448 ceAbstractionStarter]: For program point round_doubleEXIT(lines 17 64) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L448 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2018-11-28 11:56:20,964 INFO L444 ceAbstractionStarter]: At program point L20-2(lines 20 25) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-11-28 11:56:20,965 INFO L448 ceAbstractionStarter]: For program point L20-3(lines 20 25) no Hoare annotation was computed. [2018-11-28 11:56:20,965 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-28 11:56:20,965 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 56) no Hoare annotation was computed. [2018-11-28 11:56:20,965 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 45) no Hoare annotation was computed. [2018-11-28 11:56:20,965 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-11-28 11:56:20,965 INFO L448 ceAbstractionStarter]: For program point L30-2(lines 30 31) no Hoare annotation was computed. [2018-11-28 11:56:20,965 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-28 11:56:20,965 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:56:20,965 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 11:56:20,965 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:56:20,966 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:56:20,966 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-28 11:56:20,966 INFO L444 ceAbstractionStarter]: At program point L78(line 78) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 .cse0))) [2018-11-28 11:56:20,966 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 66 84) the Hoare annotation is: true [2018-11-28 11:56:20,966 INFO L448 ceAbstractionStarter]: For program point L78-1(lines 78 81) no Hoare annotation was computed. [2018-11-28 11:56:20,966 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 66 84) no Hoare annotation was computed. [2018-11-28 11:56:20,966 INFO L444 ceAbstractionStarter]: At program point L75(line 75) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2018-11-28 11:56:20,967 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2018-11-28 11:56:20,967 INFO L448 ceAbstractionStarter]: For program point L75-1(line 75) no Hoare annotation was computed. [2018-11-28 11:56:20,967 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 66 84) no Hoare annotation was computed. [2018-11-28 11:56:20,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:56:20 BoogieIcfgContainer [2018-11-28 11:56:20,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:56:20,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:56:20,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:56:20,977 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:56:20,977 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:56:14" (3/4) ... [2018-11-28 11:56:20,980 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:56:20,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-11-28 11:56:20,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:56:20,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-11-28 11:56:20,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:56:20,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-28 11:56:20,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 11:56:20,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 11:56:21,006 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 11:56:21,024 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b742f367-9193-4849-ae84-19c71f4dacbc/bin-2019/uautomizer/witness.graphml [2018-11-28 11:56:21,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:56:21,025 INFO L168 Benchmark]: Toolchain (without parser) took 7303.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 942.0 MB in the beginning and 879.6 MB in the end (delta: 62.4 MB). Peak memory consumption was 181.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:21,026 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:56:21,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.66 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:21,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.46 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:56:21,027 INFO L168 Benchmark]: Boogie Preprocessor took 69.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:21,027 INFO L168 Benchmark]: RCFGBuilder took 280.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:21,027 INFO L168 Benchmark]: TraceAbstraction took 6682.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 886.4 MB in the end (delta: 201.5 MB). Peak memory consumption was 201.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:21,027 INFO L168 Benchmark]: Witness Printer took 47.69 ms. Allocated memory is still 1.1 GB. Free memory was 886.4 MB in the beginning and 879.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:56:21,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 201.66 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 925.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.46 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 69.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -181.8 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 280.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6682.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 886.4 MB in the end (delta: 201.5 MB). Peak memory consumption was 201.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.69 ms. Allocated memory is still 1.1 GB. Free memory was 886.4 MB in the beginning and 879.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 6.6s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 157 SDtfs, 121 SDslu, 550 SDs, 0 SdLazy, 205 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 117 ConstructedInterpolants, 22 QuantifiedInterpolants, 20054 SizeOfPredicates, 16 NumberOfNonLiveVariables, 326 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...