./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/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 7089bbc1d64fdab3968ddd6407c4dd9659b97437 .......................................................................................................................................................................................................................................................................................................................... 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_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/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 7089bbc1d64fdab3968ddd6407c4dd9659b97437 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:25:21,638 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:25:21,639 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:25:21,648 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:25:21,648 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:25:21,649 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:25:21,649 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:25:21,651 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:25:21,652 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:25:21,652 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:25:21,653 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:25:21,653 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:25:21,654 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:25:21,654 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:25:21,655 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:25:21,656 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:25:21,656 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:25:21,657 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:25:21,658 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:25:21,659 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:25:21,660 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:25:21,661 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:25:21,663 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:25:21,663 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:25:21,663 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:25:21,664 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:25:21,664 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:25:21,665 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:25:21,665 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:25:21,666 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:25:21,666 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:25:21,667 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:25:21,667 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:25:21,667 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:25:21,668 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:25:21,668 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:25:21,668 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:25:21,678 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:25:21,678 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:25:21,679 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:25:21,679 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:25:21,679 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:25:21,680 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:25:21,680 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:25:21,680 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:25:21,680 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:25:21,680 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:25:21,680 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:25:21,681 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:25:21,681 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:25:21,681 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:25:21,681 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:25:21,681 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:25:21,681 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:25:21,682 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:25:21,682 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:25:21,682 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:25:21,682 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:25:21,682 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:25:21,682 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:25:21,682 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:25:21,683 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:25:21,683 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:25:21,683 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:25:21,683 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:25:21,683 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:25:21,683 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:25:21,684 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_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/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 -> 7089bbc1d64fdab3968ddd6407c4dd9659b97437 [2018-11-18 12:25:21,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:25:21,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:25:21,718 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:25:21,719 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:25:21,719 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:25:21,719 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-11-18 12:25:21,756 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data/590ddc802/57842e7e9d704335912f6ec51b3a4f91/FLAG9cf1356d9 [2018-11-18 12:25:22,158 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:25:22,158 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/sv-benchmarks/c/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-11-18 12:25:22,163 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data/590ddc802/57842e7e9d704335912f6ec51b3a4f91/FLAG9cf1356d9 [2018-11-18 12:25:22,173 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data/590ddc802/57842e7e9d704335912f6ec51b3a4f91 [2018-11-18 12:25:22,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:25:22,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:25:22,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:25:22,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:25:22,180 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:25:22,181 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@784e739c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22, skipping insertion in model container [2018-11-18 12:25:22,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:25:22,210 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:25:22,334 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:25:22,336 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:25:22,359 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:25:22,373 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:25:22,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22 WrapperNode [2018-11-18 12:25:22,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:25:22,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:25:22,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:25:22,374 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:25:22,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (1/1) ... [2018-11-18 12:25:22,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:25:22,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:25:22,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:25:22,443 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:25:22,443 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:25:22,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:25:22,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:25:22,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-18 12:25:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 12:25:22,477 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:25:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:25:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-18 12:25:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:25:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:25:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:25:22,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:25:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:25:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:25:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 12:25:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:25:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:25:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:25:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 12:25:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 12:25:22,685 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:25:22,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:22 BoogieIcfgContainer [2018-11-18 12:25:22,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:25:22,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:25:22,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:25:22,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:25:22,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:25:22" (1/3) ... [2018-11-18 12:25:22,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edd0162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:25:22, skipping insertion in model container [2018-11-18 12:25:22,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:22" (2/3) ... [2018-11-18 12:25:22,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edd0162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:25:22, skipping insertion in model container [2018-11-18 12:25:22,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:22" (3/3) ... [2018-11-18 12:25:22,692 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c_true-unreach-call.c [2018-11-18 12:25:22,697 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:25:22,701 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:25:22,711 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:25:22,731 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:25:22,731 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:25:22,731 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:25:22,731 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:25:22,731 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:25:22,731 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:25:22,731 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:25:22,731 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:25:22,731 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:25:22,743 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-18 12:25:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:25:22,748 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:22,749 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:25:22,751 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:22,755 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:22,755 INFO L82 PathProgramCache]: Analyzing trace with hash 663073210, now seen corresponding path program 1 times [2018-11-18 12:25:22,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:25:22,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:25:22,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:25:22,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:22,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:25:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:25:22,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:25:22,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:25:22,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:25:22,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:25:22,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:25:22,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:25:22,873 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-11-18 12:25:22,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:25:22,889 INFO L93 Difference]: Finished difference Result 92 states and 135 transitions. [2018-11-18 12:25:22,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:25:22,890 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-18 12:25:22,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:25:22,896 INFO L225 Difference]: With dead ends: 92 [2018-11-18 12:25:22,896 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 12:25:22,898 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:25:22,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 12:25:22,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-18 12:25:22,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-18 12:25:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 60 transitions. [2018-11-18 12:25:22,921 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 60 transitions. Word has length 25 [2018-11-18 12:25:22,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:25:22,921 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 60 transitions. [2018-11-18 12:25:22,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:25:22,922 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2018-11-18 12:25:22,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 12:25:22,923 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:22,923 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:25:22,923 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:22,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:22,923 INFO L82 PathProgramCache]: Analyzing trace with hash -879428226, now seen corresponding path program 1 times [2018-11-18 12:25:22,924 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:25:22,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:25:22,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:25:22,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:22,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:25:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:25:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:25:23,027 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:25:23,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:25:23 BoogieIcfgContainer [2018-11-18 12:25:23,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:25:23,051 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:25:23,051 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:25:23,051 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:25:23,051 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:22" (3/4) ... [2018-11-18 12:25:23,053 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:25:23,053 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:25:23,054 INFO L168 Benchmark]: Toolchain (without parser) took 878.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 962.5 MB in the beginning and 1.1 GB in the end (delta: -112.3 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:23,055 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:25:23,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.88 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 946.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:23,055 INFO L168 Benchmark]: Boogie Preprocessor took 68.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:23,056 INFO L168 Benchmark]: RCFGBuilder took 243.40 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:23,057 INFO L168 Benchmark]: TraceAbstraction took 364.22 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: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:25:23,057 INFO L168 Benchmark]: Witness Printer took 2.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:25:23,059 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.88 ms. Allocated memory is still 1.0 GB. Free memory was 962.5 MB in the beginning and 946.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 243.40 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 364.22 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: 36.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.76 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: 107]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 38, overapproximation of bitwiseOr at line 90, overapproximation of someBinaryArithmeticDOUBLEoperation at line 103, overapproximation of bitwiseAnd at line 89. Possible FailurePath: [L14] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = 1.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418246] [L20] FCALL ieee_double_shape_type ew_u; [L21] FCALL ew_u.value = (x) [L22] EXPR, FCALL ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR, FCALL ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L24] COND FALSE !(0) VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=10737418246] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=10737418246] [L26] COND TRUE j0 < 20 VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=10737418246] [L27] COND FALSE !(j0 < 0) [L38] i = (0x000fffff) >> j0 VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=10737418246] [L39] COND TRUE ((i0 & i) | i1) == 0 [L40] RET return x; VAL [\old(x)=10737418246, \result=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=10737418246] [L104] EXPR ceil_double(x) VAL [ceil_double(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418246] [L104] double res = ceil_double(x); [L106] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L82] __int32_t hx, lx; VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418246] [L84] FCALL ieee_double_shape_type ew_u; [L85] FCALL ew_u.value = (x) [L86] EXPR, FCALL ew_u.parts.msw [L86] (hx) = ew_u.parts.msw [L87] EXPR, FCALL ew_u.parts.lsw [L87] (lx) = ew_u.parts.lsw [L88] COND FALSE !(0) VAL [\old(x)=10737418246, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=1, lx=-2147483648, x=10737418246] [L89] hx &= 0x7fffffff [L90] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L91] hx = 0x7ff00000 - hx [L92] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418246, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435073, lx=-2147483648, x=10737418246] [L106] EXPR isinf_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=10737418246, x=10737418246] [L106] COND TRUE !isinf_double(res) [L107] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418246, x=10737418246] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 64 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 12:25:24,467 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:25:24,468 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:25:24,475 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:25:24,475 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:25:24,476 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:25:24,477 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:25:24,478 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:25:24,479 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:25:24,479 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:25:24,480 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:25:24,480 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:25:24,481 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:25:24,482 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:25:24,483 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:25:24,483 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:25:24,484 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:25:24,485 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:25:24,487 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:25:24,488 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:25:24,489 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:25:24,490 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:25:24,491 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:25:24,492 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:25:24,492 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:25:24,493 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:25:24,493 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:25:24,494 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:25:24,495 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:25:24,495 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:25:24,495 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:25:24,496 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:25:24,496 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:25:24,496 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:25:24,497 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:25:24,498 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:25:24,498 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 12:25:24,508 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:25:24,508 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:25:24,509 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:25:24,509 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:25:24,509 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:25:24,510 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:25:24,510 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:25:24,510 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:25:24,510 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:25:24,510 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:25:24,510 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:25:24,510 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:25:24,510 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:25:24,511 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:25:24,511 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:25:24,511 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:25:24,511 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:25:24,511 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:25:24,511 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:25:24,511 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:25:24,511 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:25:24,512 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:25:24,512 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:25:24,513 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:25:24,513 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_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/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 -> 7089bbc1d64fdab3968ddd6407c4dd9659b97437 [2018-11-18 12:25:24,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:25:24,546 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:25:24,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:25:24,549 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:25:24,550 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:25:24,550 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-11-18 12:25:24,586 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data/dbc8b3e40/04a37a60803f4340b7f940e30d73b248/FLAGba77d14c6 [2018-11-18 12:25:24,924 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:25:24,924 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/sv-benchmarks/c/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-11-18 12:25:24,928 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data/dbc8b3e40/04a37a60803f4340b7f940e30d73b248/FLAGba77d14c6 [2018-11-18 12:25:25,355 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/data/dbc8b3e40/04a37a60803f4340b7f940e30d73b248 [2018-11-18 12:25:25,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:25:25,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:25:25,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:25:25,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:25:25,361 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:25:25,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401a7ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25, skipping insertion in model container [2018-11-18 12:25:25,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:25:25,384 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:25:25,508 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:25:25,512 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:25:25,537 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:25:25,555 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:25:25,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25 WrapperNode [2018-11-18 12:25:25,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:25:25,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:25:25,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:25:25,556 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:25:25,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,572 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (1/1) ... [2018-11-18 12:25:25,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:25:25,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:25:25,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:25:25,596 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:25:25,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:25:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:25:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:25:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-11-18 12:25:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 12:25:25,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:25:25,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:25:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:25:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 12:25:25,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 12:25:25,779 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:25:26,077 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:25:26,739 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:25:26,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:26 BoogieIcfgContainer [2018-11-18 12:25:26,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:25:26,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:25:26,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:25:26,741 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:25:26,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:25:25" (1/3) ... [2018-11-18 12:25:26,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@951b825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:25:26, skipping insertion in model container [2018-11-18 12:25:26,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:25:25" (2/3) ... [2018-11-18 12:25:26,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@951b825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:25:26, skipping insertion in model container [2018-11-18 12:25:26,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:26" (3/3) ... [2018-11-18 12:25:26,743 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c_true-unreach-call.c [2018-11-18 12:25:26,749 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:25:26,753 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:25:26,763 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:25:26,784 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:25:26,784 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:25:26,784 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:25:26,784 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:25:26,784 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:25:26,784 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:25:26,785 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:25:26,785 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:25:26,785 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:25:26,794 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-18 12:25:26,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:25:26,798 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:26,798 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:25:26,800 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:26,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:26,803 INFO L82 PathProgramCache]: Analyzing trace with hash -578442706, now seen corresponding path program 1 times [2018-11-18 12:25:26,805 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:25:26,806 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 12:25:26,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:25:26,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:25:26,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:25:26,869 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:25:26,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:25:26,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:25:26,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:25:26,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:25:26,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:25:26,894 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-18 12:25:26,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:25:26,912 INFO L93 Difference]: Finished difference Result 90 states and 133 transitions. [2018-11-18 12:25:26,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:25:26,913 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 12:25:26,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:25:26,918 INFO L225 Difference]: With dead ends: 90 [2018-11-18 12:25:26,918 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 12:25:26,921 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:25:26,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 12:25:26,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-18 12:25:26,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 12:25:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 59 transitions. [2018-11-18 12:25:26,950 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 59 transitions. Word has length 24 [2018-11-18 12:25:26,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:25:26,950 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 59 transitions. [2018-11-18 12:25:26,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:25:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2018-11-18 12:25:26,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:25:26,951 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:26,951 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:25:26,951 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:26,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:26,952 INFO L82 PathProgramCache]: Analyzing trace with hash 241076646, now seen corresponding path program 1 times [2018-11-18 12:25:26,952 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:25:26,952 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 12:25:26,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:25:27,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:25:27,093 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:25:27,094 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:25:27,097 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:25:27,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-11-18 12:25:27,162 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:25:27,197 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 12:25:27,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 12:25:27,207 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:25:27,211 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:25:27,216 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:25:27,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-18 12:25:27,229 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 12:25:28,944 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 18 [2018-11-18 12:25:30,791 WARN L180 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-18 12:25:32,844 WARN L180 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 27 [2018-11-18 12:25:34,642 WARN L180 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 28 [2018-11-18 12:25:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:25:34,715 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:25:34,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:25:34,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 12:25:34,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:25:34,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:25:34,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:25:34,730 INFO L87 Difference]: Start difference. First operand 45 states and 59 transitions. Second operand 9 states. [2018-11-18 12:25:36,756 WARN L180 SmtUtils]: Spent 1.94 s on a formula simplification that was a NOOP. DAG size: 20 [2018-11-18 12:25:38,870 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 28 [2018-11-18 12:25:40,961 WARN L180 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 29 [2018-11-18 12:25:45,079 WARN L180 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2018-11-18 12:25:50,686 WARN L180 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2018-11-18 12:25:59,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:25:59,081 INFO L93 Difference]: Finished difference Result 83 states and 96 transitions. [2018-11-18 12:25:59,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 12:25:59,083 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-11-18 12:25:59,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:25:59,085 INFO L225 Difference]: With dead ends: 83 [2018-11-18 12:25:59,085 INFO L226 Difference]: Without dead ends: 50 [2018-11-18 12:25:59,086 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-11-18 12:25:59,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-18 12:25:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 41. [2018-11-18 12:25:59,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:25:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-11-18 12:25:59,090 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 26 [2018-11-18 12:25:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:25:59,090 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-11-18 12:25:59,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:25:59,091 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-11-18 12:25:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:25:59,091 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:25:59,091 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:25:59,091 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:25:59,092 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:25:59,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1824031087, now seen corresponding path program 1 times [2018-11-18 12:25:59,092 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:25:59,092 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 12:25:59,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:25:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:25:59,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:25:59,199 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:25:59,200 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:25:59,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:25:59,240 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-11-18 12:25:59,240 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:25:59,254 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 12:25:59,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 12:25:59,258 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:25:59,260 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:25:59,262 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:25:59,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:25:59,268 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 12:25:59,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:25:59,340 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:25:59,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:25:59,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:25:59,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:25:59,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:25:59,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:25:59,354 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-11-18 12:26:00,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:00,451 INFO L93 Difference]: Finished difference Result 63 states and 70 transitions. [2018-11-18 12:26:00,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:26:00,452 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 12:26:00,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:00,453 INFO L225 Difference]: With dead ends: 63 [2018-11-18 12:26:00,453 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 12:26:00,453 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:26:00,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 12:26:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-18 12:26:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 12:26:00,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-11-18 12:26:00,457 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 26 [2018-11-18 12:26:00,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:00,457 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-11-18 12:26:00,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:26:00,457 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-11-18 12:26:00,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:26:00,458 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:00,458 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:00,458 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:00,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:00,458 INFO L82 PathProgramCache]: Analyzing trace with hash 1523871951, now seen corresponding path program 1 times [2018-11-18 12:26:00,459 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:26:00,459 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 12:26:00,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:00,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:01,276 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:01,276 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:01,277 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:26:01,310 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:01,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 12:26:01,316 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:26:01,330 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 12:26:01,334 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 12:26:01,335 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:26:01,337 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:26:01,339 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:26:01,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:26:01,347 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 12:26:01,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:01,878 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:26:01,888 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:01,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 12:26:01,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:26:01,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:26:01,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:26:01,889 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 11 states. [2018-11-18 12:26:02,882 WARN L180 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 12:26:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:04,314 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-11-18 12:26:04,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:26:04,314 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-18 12:26:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:04,315 INFO L225 Difference]: With dead ends: 34 [2018-11-18 12:26:04,315 INFO L226 Difference]: Without dead ends: 27 [2018-11-18 12:26:04,316 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 12:26:04,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-18 12:26:04,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-18 12:26:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 12:26:04,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-18 12:26:04,321 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 26 [2018-11-18 12:26:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:04,322 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-18 12:26:04,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:26:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-18 12:26:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 12:26:04,322 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:26:04,322 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:26:04,323 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:26:04,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:26:04,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1230468944, now seen corresponding path program 1 times [2018-11-18 12:26:04,323 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:26:04,323 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 12:26:04,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:26:04,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:26:04,409 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:26:04,425 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:04,426 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:26:04,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:26:04,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-18 12:26:04,457 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:26:04,467 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 12:26:04,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-11-18 12:26:04,471 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:26:04,472 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:26:04,473 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:26:04,479 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:26:04,479 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 12:26:04,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:26:04,549 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:26:04,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:26:04,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:26:04,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:26:04,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:26:04,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:26:04,563 INFO L87 Difference]: Start difference. First operand 27 states and 26 transitions. Second operand 7 states. [2018-11-18 12:26:04,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:26:04,773 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2018-11-18 12:26:04,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:26:04,773 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 12:26:04,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:26:04,773 INFO L225 Difference]: With dead ends: 27 [2018-11-18 12:26:04,773 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:26:04,774 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:26:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:26:04,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:26:04,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:26:04,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:26:04,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 12:26:04,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:26:04,775 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:26:04,775 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:26:04,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:26:04,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:26:04,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:26:04,843 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:26:04,843 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:26:04,843 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:26:04,843 INFO L425 ceAbstractionStarter]: For program point L83-1(lines 83 88) no Hoare annotation was computed. [2018-11-18 12:26:04,843 INFO L421 ceAbstractionStarter]: At program point L83-3(lines 83 88) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-18 12:26:04,843 INFO L425 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 81 93) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point L83-4(lines 83 88) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 81 93) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L428 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 81 93) the Hoare annotation is: true [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 47) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 70) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 35) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 36) no Hoare annotation was computed. [2018-11-18 12:26:04,844 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 69) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 52) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 46) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 35) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 67) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L58-1(lines 58 67) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L428 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 16 78) the Hoare annotation is: true [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L71(lines 71 76) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point L71-2(lines 16 78) no Hoare annotation was computed. [2018-11-18 12:26:04,845 INFO L425 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 16 78) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point L71-3(lines 71 76) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 16 78) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 64) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point L63-2(lines 63 64) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 66) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 70) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 40) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:26:04,846 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:26:04,846 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:26:04,847 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:26:04,847 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 95 111) the Hoare annotation is: true [2018-11-18 12:26:04,847 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 95 111) no Hoare annotation was computed. [2018-11-18 12:26:04,847 INFO L425 ceAbstractionStarter]: For program point L107(line 107) no Hoare annotation was computed. [2018-11-18 12:26:04,847 INFO L421 ceAbstractionStarter]: At program point L106(line 106) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)))) [2018-11-18 12:26:04,847 INFO L425 ceAbstractionStarter]: For program point L106-1(lines 106 109) no Hoare annotation was computed. [2018-11-18 12:26:04,847 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 95 111) no Hoare annotation was computed. [2018-11-18 12:26:04,847 INFO L421 ceAbstractionStarter]: At program point L104(line 104) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (_ +zero 11 53))) [2018-11-18 12:26:04,847 INFO L425 ceAbstractionStarter]: For program point L104-1(line 104) no Hoare annotation was computed. [2018-11-18 12:26:04,848 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 107) no Hoare annotation was computed. [2018-11-18 12:26:04,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:26:04 BoogieIcfgContainer [2018-11-18 12:26:04,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:26:04,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:26:04,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:26:04,856 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:26:04,856 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:25:26" (3/4) ... [2018-11-18 12:26:04,858 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:26:04,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:26:04,862 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-18 12:26:04,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-11-18 12:26:04,863 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:26:04,867 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2018-11-18 12:26:04,867 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 12:26:04,867 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:26:04,884 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 12:26:04,884 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 12:26:04,903 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cd9cb6a3-5fc9-46da-95d5-23cfab3ce2f3/bin-2019/uautomizer/witness.graphml [2018-11-18 12:26:04,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:26:04,904 INFO L168 Benchmark]: Toolchain (without parser) took 39546.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 948.7 MB in the beginning and 800.5 MB in the end (delta: 148.1 MB). Peak memory consumption was 273.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:04,904 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:26:04,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.64 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:04,905 INFO L168 Benchmark]: Boogie Preprocessor took 39.48 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:26:04,905 INFO L168 Benchmark]: RCFGBuilder took 1143.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:04,905 INFO L168 Benchmark]: TraceAbstraction took 38115.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 800.5 MB in the end (delta: 279.8 MB). Peak memory consumption was 279.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:26:04,906 INFO L168 Benchmark]: Witness Printer took 47.60 ms. Allocated memory is still 1.2 GB. Free memory is still 800.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:26:04,907 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 196.64 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.48 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1143.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 38115.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 800.5 MB in the end (delta: 279.8 MB). Peak memory consumption was 279.8 MB. Max. memory is 11.5 GB. * Witness Printer took 47.60 ms. Allocated memory is still 1.2 GB. Free memory is still 800.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 107]: 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: 19]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 49 locations, 1 error locations. SAFE Result, 38.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 28.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 149 SDtfs, 216 SDslu, 421 SDs, 0 SdLazy, 368 SolverSat, 31 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 24.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 45 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.3s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 123 ConstructedInterpolants, 26 QuantifiedInterpolants, 22204 SizeOfPredicates, 20 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 44 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...