./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1072d_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_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/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 dbff84b908ff01b4d2841315a486ca175d7dad80 ............................................................................................................................................................................................................................................................................................................................ 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_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1072d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/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 dbff84b908ff01b4d2841315a486ca175d7dad80 ............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_1 term size 27 --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:52:03,860 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:52:03,861 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:52:03,868 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:52:03,868 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:52:03,869 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:52:03,869 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:52:03,871 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:52:03,872 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:52:03,873 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:52:03,873 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:52:03,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:52:03,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:52:03,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:52:03,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:52:03,876 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:52:03,877 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:52:03,878 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:52:03,879 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:52:03,880 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:52:03,881 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:52:03,882 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:52:03,884 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:52:03,884 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:52:03,884 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:52:03,885 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:52:03,885 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:52:03,886 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:52:03,887 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:52:03,887 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:52:03,888 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:52:03,888 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:52:03,888 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:52:03,888 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:52:03,889 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:52:03,890 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:52:03,890 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 14:52:03,899 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:52:03,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:52:03,900 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:52:03,900 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 14:52:03,900 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:52:03,900 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:52:03,900 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:52:03,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:52:03,901 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:52:03,901 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:52:03,901 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:52:03,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:52:03,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:52:03,901 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:52:03,902 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:52:03,902 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:52:03,902 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:52:03,902 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:52:03,902 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:52:03,902 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:52:03,902 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:52:03,903 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:52:03,903 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:52:03,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:52:03,903 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:52:03,903 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:52:03,903 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:52:03,903 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:52:03,904 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:52:03,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:52:03,904 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_703c6afe-2fef-4438-9aee-a49bd26fb0e8/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 -> dbff84b908ff01b4d2841315a486ca175d7dad80 [2018-11-18 14:52:03,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:52:03,936 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:52:03,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:52:03,939 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:52:03,939 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:52:03,940 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1072d_true-unreach-call.c [2018-11-18 14:52:03,977 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data/4122a349d/5fdd8a06fc594052853c025c5e6779d2/FLAGd1f5fc033 [2018-11-18 14:52:04,383 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:52:04,383 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/sv-benchmarks/c/float-newlib/double_req_bl_1072d_true-unreach-call.c [2018-11-18 14:52:04,388 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data/4122a349d/5fdd8a06fc594052853c025c5e6779d2/FLAGd1f5fc033 [2018-11-18 14:52:04,397 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data/4122a349d/5fdd8a06fc594052853c025c5e6779d2 [2018-11-18 14:52:04,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:52:04,399 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:52:04,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:04,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:52:04,403 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:52:04,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,406 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e5471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04, skipping insertion in model container [2018-11-18 14:52:04,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:52:04,429 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:52:04,543 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:04,545 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:52:04,567 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:04,579 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:52:04,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04 WrapperNode [2018-11-18 14:52:04,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:04,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:52:04,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:52:04,580 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:52:04,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,611 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (1/1) ... [2018-11-18 14:52:04,615 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:52:04,615 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:52:04,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:52:04,616 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:52:04,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:52:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:52:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:52:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 14:52:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2018-11-18 14:52:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 14:52:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:52:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:52:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 14:52:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:52:04,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:52:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:52:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 14:52:04,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 14:52:04,936 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:52:04,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:04 BoogieIcfgContainer [2018-11-18 14:52:04,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:52:04,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:52:04,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:52:04,941 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:52:04,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:52:04" (1/3) ... [2018-11-18 14:52:04,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f1170d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:04, skipping insertion in model container [2018-11-18 14:52:04,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:04" (2/3) ... [2018-11-18 14:52:04,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64f1170d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:04, skipping insertion in model container [2018-11-18 14:52:04,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:04" (3/3) ... [2018-11-18 14:52:04,943 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072d_true-unreach-call.c [2018-11-18 14:52:04,949 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:52:04,954 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:52:04,964 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:52:04,981 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:52:04,982 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:52:04,982 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:52:04,982 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:52:04,982 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:52:04,982 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:52:04,982 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:52:04,982 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:52:04,982 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:52:04,994 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-18 14:52:04,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:52:04,999 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:05,000 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 14:52:05,002 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:05,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:05,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1378541736, now seen corresponding path program 1 times [2018-11-18 14:52:05,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:52:05,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:52:05,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:05,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:05,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:52:05,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:05,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:52:05,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:52:05,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:52:05,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:52:05,125 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-18 14:52:05,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:05,139 INFO L93 Difference]: Finished difference Result 72 states and 101 transitions. [2018-11-18 14:52:05,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:52:05,139 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-18 14:52:05,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:05,145 INFO L225 Difference]: With dead ends: 72 [2018-11-18 14:52:05,145 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 14:52:05,147 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:52:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 14:52:05,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-11-18 14:52:05,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-18 14:52:05,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-11-18 14:52:05,172 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 25 [2018-11-18 14:52:05,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:05,172 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-11-18 14:52:05,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:52:05,172 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-11-18 14:52:05,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 14:52:05,173 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:05,173 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 14:52:05,173 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:05,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:05,173 INFO L82 PathProgramCache]: Analyzing trace with hash 713482640, now seen corresponding path program 1 times [2018-11-18 14:52:05,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:52:05,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:52:05,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:05,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:05,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:52:05,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:52:05,283 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:52:05,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:52:05 BoogieIcfgContainer [2018-11-18 14:52:05,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:52:05,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:52:05,304 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:52:05,304 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:52:05,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:04" (3/4) ... [2018-11-18 14:52:05,307 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:52:05,307 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:52:05,307 INFO L168 Benchmark]: Toolchain (without parser) took 908.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -129.1 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:05,309 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:52:05,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.74 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:05,309 INFO L168 Benchmark]: Boogie Preprocessor took 34.96 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:05,310 INFO L168 Benchmark]: RCFGBuilder took 321.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:05,310 INFO L168 Benchmark]: TraceAbstraction took 365.50 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:05,311 INFO L168 Benchmark]: Witness Printer took 3.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:05,313 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.74 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.96 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 321.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -177.3 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 365.50 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 89]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 72, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 71. Possible FailurePath: [L84] double x = -1.0 / 0.0; [L85] CALL, EXPR trunc_double(x) VAL [\old(x)=2147483649] [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; VAL [\old(x)=2147483649, x=2147483649] [L23] FCALL ieee_double_shape_type ew_u; [L24] FCALL ew_u.value = (x) [L25] EXPR, FCALL ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR, FCALL ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L27] COND FALSE !(0) VAL [\old(x)=2147483649, lsw=2, msw=-2147483648, x=2147483649] [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=2147483649, exponent_less_1023=1024, lsw=2, msw=-2147483648, signbit=0, x=2147483649] [L30] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=2147483649, exponent_less_1023=1024, lsw=2, msw=-2147483648, signbit=0, x=2147483649] [L47] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=2147483649, exponent_less_1023=1024, lsw=2, msw=-2147483648, signbit=0, x=2147483649] [L48] COND TRUE exponent_less_1023 == 1024 [L49] RET return x + x; VAL [\old(x)=2147483649, exponent_less_1023=1024, lsw=2, msw=-2147483648, signbit=0, x=2147483649] [L85] EXPR trunc_double(x) VAL [trunc_double(x)=2147483652, x=2147483649] [L85] double res = trunc_double(x); [L88] CALL, EXPR isinf_double(res) VAL [\old(x)=2147483652] [L64] __int32_t hx, lx; VAL [\old(x)=2147483652, x=2147483652] [L66] FCALL ieee_double_shape_type ew_u; [L67] FCALL ew_u.value = (x) [L68] EXPR, FCALL ew_u.parts.msw [L68] (hx) = ew_u.parts.msw [L69] EXPR, FCALL ew_u.parts.lsw [L69] (lx) = ew_u.parts.lsw [L70] COND FALSE !(0) VAL [\old(x)=2147483652, hx=-2147483648, lx=2, x=2147483652] [L71] hx &= 0x7fffffff [L72] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L73] hx = 0x7ff00000 - hx [L74] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=2147483652, \result=0, hx=2146435073, lx=2, x=2147483652] [L88] EXPR isinf_double(res) VAL [isinf_double(res)=0, res=2147483652, x=2147483649] [L88] COND TRUE !isinf_double(res) [L89] __VERIFIER_error() VAL [res=2147483652, x=2147483649] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 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=40occurred 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 14:52:06,778 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:52:06,779 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:52:06,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:52:06,788 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:52:06,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:52:06,789 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:52:06,790 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:52:06,791 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:52:06,792 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:52:06,793 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:52:06,793 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:52:06,793 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:52:06,794 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:52:06,795 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:52:06,795 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:52:06,796 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:52:06,797 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:52:06,798 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:52:06,799 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:52:06,800 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:52:06,800 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:52:06,802 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:52:06,802 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:52:06,802 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:52:06,803 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:52:06,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:52:06,804 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:52:06,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:52:06,805 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:52:06,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:52:06,806 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:52:06,806 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:52:06,806 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:52:06,807 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:52:06,807 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:52:06,807 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 14:52:06,817 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:52:06,817 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:52:06,818 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:52:06,818 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 14:52:06,818 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:52:06,819 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:52:06,819 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:52:06,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:52:06,819 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:52:06,819 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:52:06,819 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:52:06,819 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:52:06,819 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:52:06,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:52:06,820 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:52:06,820 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:52:06,820 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:52:06,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:52:06,820 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:52:06,820 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:52:06,820 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:52:06,820 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:52:06,821 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:52:06,821 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:52:06,821 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:52:06,821 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:52:06,821 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:52:06,821 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:52:06,821 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 14:52:06,821 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:52:06,822 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:52:06,822 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:52:06,822 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_703c6afe-2fef-4438-9aee-a49bd26fb0e8/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 -> dbff84b908ff01b4d2841315a486ca175d7dad80 [2018-11-18 14:52:06,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:52:06,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:52:06,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:52:06,863 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:52:06,863 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:52:06,864 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1072d_true-unreach-call.c [2018-11-18 14:52:06,910 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data/efa480371/779e672ed7cf40e1abb46002afef3d9f/FLAG7bb8f0e2f [2018-11-18 14:52:07,239 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:52:07,240 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/sv-benchmarks/c/float-newlib/double_req_bl_1072d_true-unreach-call.c [2018-11-18 14:52:07,244 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data/efa480371/779e672ed7cf40e1abb46002afef3d9f/FLAG7bb8f0e2f [2018-11-18 14:52:07,667 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/data/efa480371/779e672ed7cf40e1abb46002afef3d9f [2018-11-18 14:52:07,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:52:07,670 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:52:07,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:07,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:52:07,672 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:52:07,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e7113cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07, skipping insertion in model container [2018-11-18 14:52:07,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:52:07,697 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:52:07,847 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:07,851 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:52:07,875 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:07,892 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:52:07,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07 WrapperNode [2018-11-18 14:52:07,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:07,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:52:07,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:52:07,894 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:52:07,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (1/1) ... [2018-11-18 14:52:07,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:52:07,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:52:07,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:52:07,935 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:52:07,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:52:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:52:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:52:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 14:52:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_double [2018-11-18 14:52:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 14:52:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:52:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:52:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 14:52:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_double [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:52:08,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:52:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:52:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 14:52:08,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 14:52:08,145 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:52:08,257 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:52:08,287 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:52:08,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:08 BoogieIcfgContainer [2018-11-18 14:52:08,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:52:08,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:52:08,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:52:08,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:52:08,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:52:07" (1/3) ... [2018-11-18 14:52:08,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c4ae89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:08, skipping insertion in model container [2018-11-18 14:52:08,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:07" (2/3) ... [2018-11-18 14:52:08,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35c4ae89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:08, skipping insertion in model container [2018-11-18 14:52:08,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:08" (3/3) ... [2018-11-18 14:52:08,292 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1072d_true-unreach-call.c [2018-11-18 14:52:08,297 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:52:08,302 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:52:08,312 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:52:08,334 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:52:08,334 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:52:08,335 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:52:08,335 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:52:08,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:52:08,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:52:08,335 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:52:08,335 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:52:08,335 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:52:08,345 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-18 14:52:08,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:52:08,348 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:08,349 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:52:08,350 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:08,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:08,353 INFO L82 PathProgramCache]: Analyzing trace with hash -389250974, now seen corresponding path program 1 times [2018-11-18 14:52:08,356 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:52:08,356 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 14:52:08,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:08,437 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:52:08,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:52:08,449 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:52:08,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:08,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:52:08,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:52:08,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:52:08,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:52:08,468 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-11-18 14:52:08,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:08,483 INFO L93 Difference]: Finished difference Result 70 states and 99 transitions. [2018-11-18 14:52:08,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:52:08,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 14:52:08,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:08,490 INFO L225 Difference]: With dead ends: 70 [2018-11-18 14:52:08,490 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 14:52:08,493 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 14:52:08,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 14:52:08,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 14:52:08,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 14:52:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2018-11-18 14:52:08,517 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 24 [2018-11-18 14:52:08,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:08,518 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2018-11-18 14:52:08,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:52:08,518 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2018-11-18 14:52:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:52:08,519 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:08,519 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 14:52:08,519 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:08,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:08,520 INFO L82 PathProgramCache]: Analyzing trace with hash 453556679, now seen corresponding path program 1 times [2018-11-18 14:52:08,520 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:52:08,520 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_703c6afe-2fef-4438-9aee-a49bd26fb0e8/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 14:52:08,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:08,665 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:52:09,093 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-18 14:52:09,574 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:52:09,576 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:52:09,580 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:52:09,581 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 14:52:09,585 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 76 [2018-11-18 14:52:09,825 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-11-18 14:52:09,826 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimCell_1 term size 27 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-18 14:52:09,828 INFO L168 Benchmark]: Toolchain (without parser) took 2158.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -79.7 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:09,829 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:52:09,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.74 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:09,829 INFO L168 Benchmark]: Boogie Preprocessor took 40.65 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:52:09,830 INFO L168 Benchmark]: RCFGBuilder took 353.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:09,830 INFO L168 Benchmark]: TraceAbstraction took 1539.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:09,832 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 222.74 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.65 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 353.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -154.2 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1539.61 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.4 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimCell_1 term size 27 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimCell_1 term size 27: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...