./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/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 0fa375491f6ee23468a1ede5cb9608fff6035ced ......................................................................................................................................................................................................................................................................................................................... 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_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/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 0fa375491f6ee23468a1ede5cb9608fff6035ced ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:31:46,843 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:31:46,844 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:31:46,852 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:31:46,852 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:31:46,853 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:31:46,854 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:31:46,855 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:31:46,856 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:31:46,856 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:31:46,857 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:31:46,857 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:31:46,858 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:31:46,858 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:31:46,859 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:31:46,859 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:31:46,860 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:31:46,861 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:31:46,862 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:31:46,863 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:31:46,864 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:31:46,864 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:31:46,866 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:31:46,866 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:31:46,866 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:31:46,867 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:31:46,868 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:31:46,868 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:31:46,869 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:31:46,870 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:31:46,870 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:31:46,870 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:31:46,870 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:31:46,870 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:31:46,871 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:31:46,871 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:31:46,872 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 11:31:46,879 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:31:46,879 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:31:46,880 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:31:46,880 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:31:46,880 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:31:46,880 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:31:46,881 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:31:46,881 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:31:46,881 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:31:46,881 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:31:46,881 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:31:46,881 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:31:46,882 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:31:46,882 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:31:46,882 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:31:46,882 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:31:46,882 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:31:46,882 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:31:46,882 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:31:46,883 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:31:46,883 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:31:46,883 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:31:46,883 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:31:46,883 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:31:46,883 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:31:46,884 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:31:46,884 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:31:46,884 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:31:46,884 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:31:46,884 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:31:46,884 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_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2018-11-28 11:31:46,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:31:46,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:31:46,919 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:31:46,920 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:31:46,920 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:31:46,921 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-11-28 11:31:46,960 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data/f4d724dd2/9ddab4857b53422c94b73548031473ab/FLAG92b515766 [2018-11-28 11:31:47,385 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:31:47,385 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-11-28 11:31:47,390 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data/f4d724dd2/9ddab4857b53422c94b73548031473ab/FLAG92b515766 [2018-11-28 11:31:47,399 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data/f4d724dd2/9ddab4857b53422c94b73548031473ab [2018-11-28 11:31:47,401 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:31:47,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:31:47,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:31:47,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:31:47,405 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:31:47,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@516c935c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47, skipping insertion in model container [2018-11-28 11:31:47,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:31:47,423 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:31:47,536 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:31:47,539 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:31:47,561 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:31:47,611 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:31:47,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47 WrapperNode [2018-11-28 11:31:47,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:31:47,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:31:47,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:31:47,612 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:31:47,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:31:47,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:31:47,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:31:47,631 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:31:47,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,646 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... [2018-11-28 11:31:47,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:31:47,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:31:47,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:31:47,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:31:47,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:31:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 11:31:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 11:31:47,687 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-11-28 11:31:47,688 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-11-28 11:31:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 11:31:47,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 11:31:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:31:47,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:31:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 11:31:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:31:47,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:31:47,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:31:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 11:31:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:31:47,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:31:47,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:31:47,897 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:31:47,897 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 11:31:47,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:31:47 BoogieIcfgContainer [2018-11-28 11:31:47,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:31:47,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:31:47,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:31:47,900 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:31:47,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:31:47" (1/3) ... [2018-11-28 11:31:47,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e21d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:31:47, skipping insertion in model container [2018-11-28 11:31:47,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:47" (2/3) ... [2018-11-28 11:31:47,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e21d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:31:47, skipping insertion in model container [2018-11-28 11:31:47,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:31:47" (3/3) ... [2018-11-28 11:31:47,902 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051_true-unreach-call.c [2018-11-28 11:31:47,908 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:31:47,912 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:31:47,921 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:31:47,937 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:31:47,938 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:31:47,938 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:31:47,938 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:31:47,938 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:31:47,938 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:31:47,938 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:31:47,938 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:31:47,938 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:31:47,950 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-28 11:31:47,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:31:47,954 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:31:47,954 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:31:47,956 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:31:47,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:31:47,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1635654302, now seen corresponding path program 1 times [2018-11-28 11:31:47,960 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:31:47,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:31:47,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:31:47,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:31:47,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:31:48,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:31:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:31:48,049 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:31:48,049 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:31:48,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:31:48,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:31:48,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:31:48,062 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-28 11:31:48,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:31:48,076 INFO L93 Difference]: Finished difference Result 86 states and 124 transitions. [2018-11-28 11:31:48,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:31:48,077 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 11:31:48,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:31:48,083 INFO L225 Difference]: With dead ends: 86 [2018-11-28 11:31:48,083 INFO L226 Difference]: Without dead ends: 43 [2018-11-28 11:31:48,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:31:48,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-28 11:31:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-28 11:31:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 11:31:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2018-11-28 11:31:48,112 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 23 [2018-11-28 11:31:48,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:31:48,112 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2018-11-28 11:31:48,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:31:48,112 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2018-11-28 11:31:48,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 11:31:48,113 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:31:48,113 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:31:48,114 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:31:48,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:31:48,114 INFO L82 PathProgramCache]: Analyzing trace with hash 744784661, now seen corresponding path program 1 times [2018-11-28 11:31:48,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:31:48,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:31:48,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:31:48,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:31:48,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:31:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:31:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:31:48,176 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 11:31:48,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:31:48 BoogieIcfgContainer [2018-11-28 11:31:48,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:31:48,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:31:48,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:31:48,196 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:31:48,196 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:31:47" (3/4) ... [2018-11-28 11:31:48,199 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 11:31:48,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:31:48,199 INFO L168 Benchmark]: Toolchain (without parser) took 797.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -135.5 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:31:48,200 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:31:48,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 954.4 MB in the beginning and 1.2 GB in the end (delta: -203.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:31:48,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:31:48,202 INFO L168 Benchmark]: Boogie Preprocessor took 23.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:31:48,202 INFO L168 Benchmark]: RCFGBuilder took 243.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:31:48,202 INFO L168 Benchmark]: TraceAbstraction took 297.61 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2018-11-28 11:31:48,203 INFO L168 Benchmark]: Witness Printer took 2.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:31:48,205 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 954.4 MB in the beginning and 1.2 GB in the end (delta: -203.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 243.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 297.61 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: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.95 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 93]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of someBinaryArithmeticDOUBLEoperation at line 88, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 80. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=6442450948, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L88] double x = 0.0 / 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L89] CALL, EXPR floor_double(x) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L20] ieee_double_shape_type ew_u; [L21] ew_u.value = (x) [L22] EXPR ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, x=6442450952] [L26] COND TRUE j0 < 20 VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=6442450952] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=6442450952] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] return x; VAL [\old(x)=6442450952, \result=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=3, j0=0, x=6442450952] [L89] RET, EXPR floor_double(x) VAL [floor_double(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L89] double res = floor_double(x); [L92] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L80] return x != x; VAL [\old(x)=6442450952, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L92] RET, EXPR isnan_double(res) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, res=6442450952, x=6442450952] [L92] COND TRUE !isnan_double(res) [L93] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=6442450952, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 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=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:31:49,694 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:31:49,695 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:31:49,703 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:31:49,703 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:31:49,704 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:31:49,704 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:31:49,706 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:31:49,707 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:31:49,707 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:31:49,708 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:31:49,708 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:31:49,709 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:31:49,710 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:31:49,710 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:31:49,711 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:31:49,712 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:31:49,713 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:31:49,714 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:31:49,715 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:31:49,716 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:31:49,717 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:31:49,718 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:31:49,719 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:31:49,719 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:31:49,720 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:31:49,720 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:31:49,721 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:31:49,721 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:31:49,722 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:31:49,722 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:31:49,723 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:31:49,723 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:31:49,723 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:31:49,724 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:31:49,724 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:31:49,724 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 11:31:49,734 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:31:49,735 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:31:49,735 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:31:49,735 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:31:49,736 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:31:49,736 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:31:49,736 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:31:49,736 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:31:49,736 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:31:49,736 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:31:49,736 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:31:49,737 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:31:49,738 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:31:49,738 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:31:49,738 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 11:31:49,739 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 11:31:49,739 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_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/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 -> 0fa375491f6ee23468a1ede5cb9608fff6035ced [2018-11-28 11:31:49,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:31:49,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:31:49,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:31:49,774 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:31:49,774 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:31:49,774 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-11-28 11:31:49,811 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data/4d2cd6e8c/b82ca1d6034a4b018331d0965960679a/FLAG194aa5565 [2018-11-28 11:31:50,216 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:31:50,217 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/sv-benchmarks/c/float-newlib/double_req_bl_1051_true-unreach-call.c [2018-11-28 11:31:50,221 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data/4d2cd6e8c/b82ca1d6034a4b018331d0965960679a/FLAG194aa5565 [2018-11-28 11:31:50,230 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/data/4d2cd6e8c/b82ca1d6034a4b018331d0965960679a [2018-11-28 11:31:50,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:31:50,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:31:50,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:31:50,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:31:50,235 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:31:50,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee18094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50, skipping insertion in model container [2018-11-28 11:31:50,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:31:50,254 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:31:50,369 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:31:50,373 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:31:50,397 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:31:50,419 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:31:50,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50 WrapperNode [2018-11-28 11:31:50,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:31:50,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:31:50,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:31:50,420 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:31:50,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:31:50,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:31:50,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:31:50,439 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:31:50,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,503 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... [2018-11-28 11:31:50,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:31:50,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:31:50,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:31:50,513 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:31:50,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:31:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-11-28 11:31:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-11-28 11:31:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-28 11:31:50,546 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-28 11:31:50,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 11:31:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:31:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:31:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:31:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 11:31:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 11:31:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:31:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:31:50,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:31:50,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:31:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 11:31:50,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 11:31:50,686 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 11:31:51,620 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:31:51,620 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 11:31:51,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:31:51 BoogieIcfgContainer [2018-11-28 11:31:51,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:31:51,621 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:31:51,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:31:51,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:31:51,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:31:50" (1/3) ... [2018-11-28 11:31:51,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7700575a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:31:51, skipping insertion in model container [2018-11-28 11:31:51,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:31:50" (2/3) ... [2018-11-28 11:31:51,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7700575a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:31:51, skipping insertion in model container [2018-11-28 11:31:51,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:31:51" (3/3) ... [2018-11-28 11:31:51,627 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1051_true-unreach-call.c [2018-11-28 11:31:51,632 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:31:51,639 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 11:31:51,652 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 11:31:51,669 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:31:51,669 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:31:51,669 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:31:51,669 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:31:51,669 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:31:51,670 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:31:51,670 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:31:51,670 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:31:51,670 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:31:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-11-28 11:31:51,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 11:31:51,684 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:31:51,685 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:31:51,686 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:31:51,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:31:51,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1623509953, now seen corresponding path program 1 times [2018-11-28 11:31:51,692 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:31:51,692 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 11:31:51,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:31:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:31:51,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:31:51,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:31:51,758 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:31:51,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:31:51,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:31:51,768 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 11:31:51,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 11:31:51,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:31:51,777 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2018-11-28 11:31:51,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:31:51,792 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2018-11-28 11:31:51,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 11:31:51,793 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 11:31:51,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:31:51,800 INFO L225 Difference]: With dead ends: 84 [2018-11-28 11:31:51,800 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 11:31:51,802 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 11:31:51,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 11:31:51,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-28 11:31:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 11:31:51,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2018-11-28 11:31:51,829 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 22 [2018-11-28 11:31:51,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:31:51,830 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2018-11-28 11:31:51,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 11:31:51,830 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2018-11-28 11:31:51,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:31:51,831 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:31:51,831 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:31:51,831 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:31:51,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:31:51,831 INFO L82 PathProgramCache]: Analyzing trace with hash 510037476, now seen corresponding path program 1 times [2018-11-28 11:31:51,832 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:31:51,832 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 11:31:51,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:31:51,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:31:51,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:31:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:31:52,059 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:31:52,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:31:52,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 11:31:52,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 11:31:52,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 11:31:52,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:31:52,069 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 9 states. [2018-11-28 11:31:53,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:31:53,567 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2018-11-28 11:31:53,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 11:31:53,568 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 11:31:53,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:31:53,571 INFO L225 Difference]: With dead ends: 51 [2018-11-28 11:31:53,571 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 11:31:53,572 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:31:53,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 11:31:53,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-11-28 11:31:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 11:31:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2018-11-28 11:31:53,581 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 23 [2018-11-28 11:31:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:31:53,581 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2018-11-28 11:31:53,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 11:31:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2018-11-28 11:31:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 11:31:53,582 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:31:53,582 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:31:53,583 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:31:53,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:31:53,583 INFO L82 PathProgramCache]: Analyzing trace with hash 600907611, now seen corresponding path program 1 times [2018-11-28 11:31:53,583 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:31:53,583 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 11:31:53,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:31:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:31:53,672 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:31:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:31:54,499 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:31:54,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:31:54,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 11:31:54,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 11:31:54,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 11:31:54,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 11:31:54,511 INFO L87 Difference]: Start difference. First operand 42 states and 53 transitions. Second operand 9 states. [2018-11-28 11:31:56,203 WARN L180 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 11:31:57,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:31:57,524 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-11-28 11:31:57,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 11:31:57,524 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-28 11:31:57,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:31:57,525 INFO L225 Difference]: With dead ends: 49 [2018-11-28 11:31:57,525 INFO L226 Difference]: Without dead ends: 41 [2018-11-28 11:31:57,526 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 11:31:57,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-28 11:31:57,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-28 11:31:57,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-28 11:31:57,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-11-28 11:31:57,530 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 23 [2018-11-28 11:31:57,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:31:57,531 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-28 11:31:57,531 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 11:31:57,531 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-11-28 11:31:57,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 11:31:57,532 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:31:57,532 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:31:57,532 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:31:57,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:31:57,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1506102432, now seen corresponding path program 1 times [2018-11-28 11:31:57,536 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:31:57,536 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 11:31:57,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:31:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:31:57,632 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:31:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:31:57,737 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:31:57,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:31:57,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 11:31:57,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 11:31:57,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 11:31:57,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:31:57,749 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-11-28 11:31:59,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:31:59,866 INFO L93 Difference]: Finished difference Result 67 states and 76 transitions. [2018-11-28 11:31:59,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 11:31:59,868 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 11:31:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:31:59,868 INFO L225 Difference]: With dead ends: 67 [2018-11-28 11:31:59,868 INFO L226 Difference]: Without dead ends: 40 [2018-11-28 11:31:59,869 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-11-28 11:31:59,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-28 11:31:59,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2018-11-28 11:31:59,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 11:31:59,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-28 11:31:59,872 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 26 [2018-11-28 11:31:59,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:31:59,872 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-28 11:31:59,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 11:31:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-28 11:31:59,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 11:31:59,873 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:31:59,873 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:31:59,873 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 11:31:59,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:31:59,873 INFO L82 PathProgramCache]: Analyzing trace with hash -2012573455, now seen corresponding path program 1 times [2018-11-28 11:31:59,874 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 11:31:59,874 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 11:31:59,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:31:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:31:59,976 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:32:00,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:32:00,116 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 11:32:00,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:32:00,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 11:32:00,125 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 11:32:00,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 11:32:00,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 11:32:00,125 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 8 states. [2018-11-28 11:32:00,549 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-11-28 11:32:01,318 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-11-28 11:32:01,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:32:01,425 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-11-28 11:32:01,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 11:32:01,425 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-11-28 11:32:01,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:32:01,426 INFO L225 Difference]: With dead ends: 40 [2018-11-28 11:32:01,426 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:32:01,426 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2018-11-28 11:32:01,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:32:01,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:32:01,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:32:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:32:01,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-28 11:32:01,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:32:01,427 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:32:01,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 11:32:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:32:01,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:32:01,429 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:32:01,492 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-11-28 11:32:01,492 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-11-28 11:32:01,492 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-11-28 11:32:01,492 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-11-28 11:32:01,492 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 24) the Hoare annotation is: (= floor_double_~x |floor_double_#in~x|) [2018-11-28 11:32:01,492 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 24) no Hoare annotation was computed. [2018-11-28 11:32:01,492 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-11-28 11:32:01,492 INFO L448 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L451 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 16 77) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 70 75) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-11-28 11:32:01,493 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L451 ceAbstractionStarter]: At program point isnan_doubleENTRY(line 80) the Hoare annotation is: true [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point isnan_doubleEXIT(line 80) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point isnan_doubleFINAL(line 80) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:32:01,494 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:32:01,495 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:32:01,495 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:32:01,495 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 11:32:01,495 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:32:01,495 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:32:01,495 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 93) no Hoare annotation was computed. [2018-11-28 11:32:01,495 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 82 98) the Hoare annotation is: true [2018-11-28 11:32:01,495 INFO L448 ceAbstractionStarter]: For program point L93(line 93) no Hoare annotation was computed. [2018-11-28 11:32:01,495 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 82 98) no Hoare annotation was computed. [2018-11-28 11:32:01,495 INFO L444 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (and (= main_~x~0 .cse0) (= main_~res~0 .cse0))) [2018-11-28 11:32:01,496 INFO L448 ceAbstractionStarter]: For program point L92-1(lines 92 95) no Hoare annotation was computed. [2018-11-28 11:32:01,496 INFO L444 ceAbstractionStarter]: At program point L89(line 89) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53))) [2018-11-28 11:32:01,496 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 82 98) no Hoare annotation was computed. [2018-11-28 11:32:01,496 INFO L448 ceAbstractionStarter]: For program point L89-1(line 89) no Hoare annotation was computed. [2018-11-28 11:32:01,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:32:01 BoogieIcfgContainer [2018-11-28 11:32:01,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:32:01,506 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:32:01,506 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:32:01,506 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:32:01,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:31:51" (3/4) ... [2018-11-28 11:32:01,509 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:32:01,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-11-28 11:32:01,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2018-11-28 11:32:01,513 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:32:01,514 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:32:01,516 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-28 11:32:01,517 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 11:32:01,517 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 11:32:01,534 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 11:32:01,553 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_076cbe9d-fa37-4ba8-be62-0fd68c3ce42e/bin-2019/uautomizer/witness.graphml [2018-11-28 11:32:01,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:32:01,554 INFO L168 Benchmark]: Toolchain (without parser) took 11321.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 944.7 MB in the beginning and 868.6 MB in the end (delta: 76.1 MB). Peak memory consumption was 226.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:01,554 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:32:01,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.32 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:01,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.33 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:32:01,555 INFO L168 Benchmark]: Boogie Preprocessor took 72.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -210.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:01,555 INFO L168 Benchmark]: RCFGBuilder took 1108.42 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:01,556 INFO L168 Benchmark]: TraceAbstraction took 9884.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 875.2 MB in the end (delta: 230.7 MB). Peak memory consumption was 230.7 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:01,556 INFO L168 Benchmark]: Witness Printer took 47.22 ms. Allocated memory is still 1.2 GB. Free memory was 875.2 MB in the beginning and 868.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:32:01,558 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.32 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.33 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -210.0 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1108.42 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: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9884.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 875.2 MB in the end (delta: 230.7 MB). Peak memory consumption was 230.7 MB. Max. memory is 11.5 GB. * Witness Printer took 47.22 ms. Allocated memory is still 1.2 GB. Free memory was 875.2 MB in the beginning and 868.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 93]: 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: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 locations, 1 error locations. SAFE Result, 9.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 186 SDtfs, 249 SDslu, 649 SDs, 0 SdLazy, 326 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 116 ConstructedInterpolants, 21 QuantifiedInterpolants, 18833 SizeOfPredicates, 16 NumberOfNonLiveVariables, 333 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...