./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 22:09:50,792 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:09:50,793 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:09:50,799 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:09:50,799 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:09:50,800 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:09:50,800 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:09:50,801 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:09:50,802 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:09:50,803 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:09:50,803 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:09:50,804 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:09:50,804 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:09:50,805 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:09:50,805 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:09:50,806 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:09:50,806 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:09:50,807 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:09:50,808 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:09:50,809 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:09:50,810 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:09:50,810 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:09:50,812 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:09:50,812 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:09:50,812 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:09:50,812 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:09:50,813 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:09:50,813 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:09:50,814 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:09:50,814 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:09:50,815 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:09:50,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:09:50,815 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:09:50,815 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:09:50,816 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:09:50,816 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:09:50,816 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-01 22:09:50,824 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:09:50,824 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:09:50,824 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:09:50,825 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:09:50,825 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 22:09:50,825 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 22:09:50,825 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 22:09:50,825 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:09:50,825 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:09:50,825 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 22:09:50,826 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:09:50,826 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:09:50,827 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:09:50,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 22:09:50,827 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_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d [2018-12-01 22:09:50,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:09:50,854 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:09:50,857 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:09:50,858 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:09:50,858 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:09:50,858 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-12-01 22:09:50,901 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data/36bd277c4/3091b699476b4484bed1711951b91848/FLAGdfec222e4 [2018-12-01 22:09:51,304 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:09:51,304 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-12-01 22:09:51,308 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data/36bd277c4/3091b699476b4484bed1711951b91848/FLAGdfec222e4 [2018-12-01 22:09:51,316 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data/36bd277c4/3091b699476b4484bed1711951b91848 [2018-12-01 22:09:51,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:09:51,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:09:51,319 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:09:51,319 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:09:51,321 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:09:51,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7faede09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51, skipping insertion in model container [2018-12-01 22:09:51,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:09:51,337 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:09:51,432 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:09:51,434 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:09:51,451 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:09:51,463 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:09:51,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51 WrapperNode [2018-12-01 22:09:51,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:09:51,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:09:51,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:09:51,464 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:09:51,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:09:51,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:09:51,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:09:51,510 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:09:51,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... [2018-12-01 22:09:51,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:09:51,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:09:51,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:09:51,531 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:09:51,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/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 [2018-12-01 22:09:51,562 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-01 22:09:51,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-01 22:09:51,562 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:09:51,562 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:09:51,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-01 22:09:51,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 22:09:51,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:09:51,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:09:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-01 22:09:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:09:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-12-01 22:09:51,563 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-12-01 22:09:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:09:51,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:09:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 22:09:51,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 22:09:51,724 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:09:51,724 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-01 22:09:51,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:09:51 BoogieIcfgContainer [2018-12-01 22:09:51,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:09:51,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:09:51,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:09:51,728 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:09:51,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:09:51" (1/3) ... [2018-12-01 22:09:51,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30457157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:09:51, skipping insertion in model container [2018-12-01 22:09:51,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:51" (2/3) ... [2018-12-01 22:09:51,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30457157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:09:51, skipping insertion in model container [2018-12-01 22:09:51,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:09:51" (3/3) ... [2018-12-01 22:09:51,730 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a_true-unreach-call.c [2018-12-01 22:09:51,738 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:09:51,744 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 22:09:51,759 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 22:09:51,781 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 22:09:51,782 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:09:51,782 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:09:51,782 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:09:51,782 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:09:51,782 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:09:51,782 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:09:51,782 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:09:51,782 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:09:51,792 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-12-01 22:09:51,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 22:09:51,796 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:09:51,796 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:09:51,798 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:09:51,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:09:51,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1666868037, now seen corresponding path program 1 times [2018-12-01 22:09:51,802 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 22:09:51,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 22:09:51,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:09:51,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:09:51,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:09:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:09:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:09:51,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:09:51,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 22:09:51,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 22:09:51,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 22:09:51,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 22:09:51,888 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-12-01 22:09:51,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:09:51,901 INFO L93 Difference]: Finished difference Result 78 states and 109 transitions. [2018-12-01 22:09:51,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 22:09:51,902 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-01 22:09:51,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:09:51,907 INFO L225 Difference]: With dead ends: 78 [2018-12-01 22:09:51,907 INFO L226 Difference]: Without dead ends: 39 [2018-12-01 22:09:51,909 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 [2018-12-01 22:09:51,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-01 22:09:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-01 22:09:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-01 22:09:51,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2018-12-01 22:09:51,931 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 19 [2018-12-01 22:09:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:09:51,931 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2018-12-01 22:09:51,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 22:09:51,931 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2018-12-01 22:09:51,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 22:09:51,932 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:09:51,932 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] [2018-12-01 22:09:51,932 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:09:51,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:09:51,933 INFO L82 PathProgramCache]: Analyzing trace with hash -165901892, now seen corresponding path program 1 times [2018-12-01 22:09:51,933 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 22:09:51,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 22:09:51,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:09:51,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:09:51,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 22:09:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:09:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 22:09:51,979 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-01 22:09:51,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:09:51 BoogieIcfgContainer [2018-12-01 22:09:51,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:09:51,995 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:09:51,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:09:51,996 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:09:51,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:09:51" (3/4) ... [2018-12-01 22:09:51,998 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 22:09:51,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:09:51,999 INFO L168 Benchmark]: Toolchain (without parser) took 681.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 962.4 MB in the beginning and 1.0 GB in the end (delta: -81.9 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:52,000 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:09:52,000 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.15 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:52,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:52,001 INFO L168 Benchmark]: Boogie Preprocessor took 20.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:09:52,001 INFO L168 Benchmark]: RCFGBuilder took 194.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:52,001 INFO L168 Benchmark]: TraceAbstraction took 270.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:52,001 INFO L168 Benchmark]: Witness Printer took 2.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:09:52,003 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.15 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 194.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 270.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.77 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 90, overapproximation of shiftRight at line 34, overapproximation of bitwiseAnd at line 35. Possible FailurePath: [L86] double x = 0.0; VAL [x=0] [L87] CALL, EXPR round_double(x) VAL [\old(x)=0] [L18] __int32_t msw, exponent_less_1023; [L19] __uint32_t lsw; VAL [\old(x)=0, x=0] [L21] ieee_double_shape_type ew_u; [L22] ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] (msw) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] (lsw) = ew_u.parts.lsw [L26] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=2, x=0] [L27] COND TRUE exponent_less_1023 < 20 VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=2, x=0] [L28] COND FALSE !(exponent_less_1023 < 0) [L34] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; VAL [\old(x)=0, exponent_less_1023=0, lsw=0, msw=2, x=0] [L35] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L36] return x; VAL [\old(x)=0, \result=0, exponent_less_1023=0, lsw=0, msw=2, x=0] [L87] RET, EXPR round_double(x) VAL [round_double(x)=0, x=0] [L87] double res = round_double(x); [L90] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L90] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L91] __VERIFIER_error() VAL [res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 51 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-01 22:09:53,408 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 22:09:53,408 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 22:09:53,416 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 22:09:53,416 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 22:09:53,417 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 22:09:53,418 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 22:09:53,419 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 22:09:53,420 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 22:09:53,420 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 22:09:53,421 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 22:09:53,421 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 22:09:53,422 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 22:09:53,422 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 22:09:53,423 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 22:09:53,424 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 22:09:53,424 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 22:09:53,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 22:09:53,427 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 22:09:53,428 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 22:09:53,429 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 22:09:53,429 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 22:09:53,431 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 22:09:53,431 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 22:09:53,431 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 22:09:53,432 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 22:09:53,433 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 22:09:53,433 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 22:09:53,434 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 22:09:53,435 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 22:09:53,435 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 22:09:53,435 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 22:09:53,436 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 22:09:53,436 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 22:09:53,437 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 22:09:53,437 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 22:09:53,437 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-01 22:09:53,445 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 22:09:53,445 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 22:09:53,445 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 22:09:53,445 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-01 22:09:53,446 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 22:09:53,446 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 22:09:53,446 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 22:09:53,446 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 22:09:53,446 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 22:09:53,446 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 22:09:53,446 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 22:09:53,446 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 22:09:53,447 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 22:09:53,447 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 22:09:53,447 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-01 22:09:53,447 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-01 22:09:53,447 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 22:09:53,447 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 22:09:53,447 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 22:09:53,447 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 22:09:53,447 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-01 22:09:53,448 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-01 22:09:53,448 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-01 22:09:53,449 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_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d015b2bc8cb93a5e0ac1240dd23d0cf22b0709d [2018-12-01 22:09:53,473 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 22:09:53,483 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 22:09:53,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 22:09:53,487 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 22:09:53,488 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 22:09:53,488 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-12-01 22:09:53,536 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data/f2540b004/a0a2d8d35521447ab7b79d0348fdc522/FLAG67a4cd78f [2018-12-01 22:09:53,901 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 22:09:53,902 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/sv-benchmarks/c/float-newlib/double_req_bl_1032a_true-unreach-call.c [2018-12-01 22:09:53,905 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data/f2540b004/a0a2d8d35521447ab7b79d0348fdc522/FLAG67a4cd78f [2018-12-01 22:09:53,913 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/data/f2540b004/a0a2d8d35521447ab7b79d0348fdc522 [2018-12-01 22:09:53,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 22:09:53,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 22:09:53,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 22:09:53,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 22:09:53,918 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 22:09:53,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:09:53" (1/1) ... [2018-12-01 22:09:53,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7a218c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:53, skipping insertion in model container [2018-12-01 22:09:53,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 10:09:53" (1/1) ... [2018-12-01 22:09:53,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 22:09:53,935 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 22:09:54,032 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:09:54,035 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 22:09:54,055 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 22:09:54,071 INFO L195 MainTranslator]: Completed translation [2018-12-01 22:09:54,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54 WrapperNode [2018-12-01 22:09:54,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 22:09:54,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 22:09:54,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 22:09:54,073 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 22:09:54,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 22:09:54,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 22:09:54,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 22:09:54,089 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 22:09:54,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... [2018-12-01 22:09:54,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 22:09:54,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 22:09:54,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 22:09:54,146 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 22:09:54,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/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 [2018-12-01 22:09:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-01 22:09:54,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-01 22:09:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-12-01 22:09:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-12-01 22:09:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-01 22:09:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-01 22:09:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-01 22:09:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-01 22:09:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 22:09:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-01 22:09:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-12-01 22:09:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-12-01 22:09:54,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 22:09:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 22:09:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-01 22:09:54,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 22:09:54,300 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:09:54,406 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-01 22:09:54,421 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 22:09:54,421 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-01 22:09:54,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:09:54 BoogieIcfgContainer [2018-12-01 22:09:54,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 22:09:54,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-01 22:09:54,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-01 22:09:54,424 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-01 22:09:54,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 10:09:53" (1/3) ... [2018-12-01 22:09:54,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f14ff87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:09:54, skipping insertion in model container [2018-12-01 22:09:54,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 10:09:54" (2/3) ... [2018-12-01 22:09:54,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f14ff87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 10:09:54, skipping insertion in model container [2018-12-01 22:09:54,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:09:54" (3/3) ... [2018-12-01 22:09:54,426 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032a_true-unreach-call.c [2018-12-01 22:09:54,431 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-01 22:09:54,435 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-01 22:09:54,443 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-01 22:09:54,459 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 22:09:54,460 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-01 22:09:54,460 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-01 22:09:54,460 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-01 22:09:54,460 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 22:09:54,460 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 22:09:54,460 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-01 22:09:54,460 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 22:09:54,460 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-01 22:09:54,469 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-12-01 22:09:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-01 22:09:54,472 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:09:54,473 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:09:54,474 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:09:54,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:09:54,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1666868037, now seen corresponding path program 1 times [2018-12-01 22:09:54,479 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:09:54,480 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/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 [2018-12-01 22:09:54,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:09:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:09:54,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:09:54,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:09:54,527 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:09:54,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:09:54,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-01 22:09:54,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-01 22:09:54,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-01 22:09:54,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 22:09:54,546 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-12-01 22:09:54,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:09:54,559 INFO L93 Difference]: Finished difference Result 78 states and 109 transitions. [2018-12-01 22:09:54,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-01 22:09:54,560 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-12-01 22:09:54,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:09:54,568 INFO L225 Difference]: With dead ends: 78 [2018-12-01 22:09:54,568 INFO L226 Difference]: Without dead ends: 39 [2018-12-01 22:09:54,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-01 22:09:54,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-01 22:09:54,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-01 22:09:54,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-01 22:09:54,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2018-12-01 22:09:54,595 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 19 [2018-12-01 22:09:54,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:09:54,595 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2018-12-01 22:09:54,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-01 22:09:54,596 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2018-12-01 22:09:54,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-01 22:09:54,596 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:09:54,596 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] [2018-12-01 22:09:54,597 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:09:54,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:09:54,597 INFO L82 PathProgramCache]: Analyzing trace with hash -165901892, now seen corresponding path program 1 times [2018-12-01 22:09:54,597 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:09:54,598 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/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 [2018-12-01 22:09:54,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:09:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:09:54,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:09:54,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:09:54,744 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:09:54,755 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:09:54,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 22:09:54,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 22:09:54,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 22:09:54,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 22:09:54,757 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand 7 states. [2018-12-01 22:09:55,156 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-12-01 22:09:55,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:09:55,975 INFO L93 Difference]: Finished difference Result 65 states and 73 transitions. [2018-12-01 22:09:55,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-01 22:09:55,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-01 22:09:55,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:09:55,977 INFO L225 Difference]: With dead ends: 65 [2018-12-01 22:09:55,977 INFO L226 Difference]: Without dead ends: 33 [2018-12-01 22:09:55,977 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2018-12-01 22:09:55,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-01 22:09:55,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-01 22:09:55,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-01 22:09:55,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-12-01 22:09:55,980 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 20 [2018-12-01 22:09:55,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:09:55,980 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-12-01 22:09:55,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 22:09:55,981 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-12-01 22:09:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 22:09:55,981 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:09:55,981 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] [2018-12-01 22:09:55,981 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:09:55,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:09:55,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1090994049, now seen corresponding path program 1 times [2018-12-01 22:09:55,982 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:09:55,982 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/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 [2018-12-01 22:09:55,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:09:56,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:09:56,021 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:09:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:09:56,101 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:09:56,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:09:56,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-01 22:09:56,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-01 22:09:56,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-01 22:09:56,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-01 22:09:56,109 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 7 states. [2018-12-01 22:09:56,997 WARN L180 SmtUtils]: Spent 668.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-12-01 22:09:57,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:09:57,235 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2018-12-01 22:09:57,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-01 22:09:57,236 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-01 22:09:57,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:09:57,237 INFO L225 Difference]: With dead ends: 52 [2018-12-01 22:09:57,237 INFO L226 Difference]: Without dead ends: 33 [2018-12-01 22:09:57,237 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-12-01 22:09:57,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-01 22:09:57,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-01 22:09:57,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-01 22:09:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2018-12-01 22:09:57,240 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 24 [2018-12-01 22:09:57,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:09:57,240 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2018-12-01 22:09:57,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-01 22:09:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2018-12-01 22:09:57,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-01 22:09:57,240 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:09:57,241 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] [2018-12-01 22:09:57,241 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:09:57,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:09:57,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1792058627, now seen corresponding path program 1 times [2018-12-01 22:09:57,241 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:09:57,242 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/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 [2018-12-01 22:09:57,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:09:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:09:57,279 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:09:57,306 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 45 [2018-12-01 22:09:57,309 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 38 [2018-12-01 22:09:57,320 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-12-01 22:09:57,320 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-01 22:09:57,323 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 22:09:57,325 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 22:09:57,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-01 22:09:57,327 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:51, output treesize:21 [2018-12-01 22:09:57,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:09:57,385 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:09:57,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:09:57,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-01 22:09:57,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-01 22:09:57,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-01 22:09:57,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-01 22:09:57,394 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand 8 states. [2018-12-01 22:09:57,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:09:57,550 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions. [2018-12-01 22:09:57,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-01 22:09:57,551 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2018-12-01 22:09:57,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:09:57,551 INFO L225 Difference]: With dead ends: 36 [2018-12-01 22:09:57,552 INFO L226 Difference]: Without dead ends: 33 [2018-12-01 22:09:57,552 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-12-01 22:09:57,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-01 22:09:57,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-01 22:09:57,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-01 22:09:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-12-01 22:09:57,555 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 24 [2018-12-01 22:09:57,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:09:57,555 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-12-01 22:09:57,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-01 22:09:57,556 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-12-01 22:09:57,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-01 22:09:57,556 INFO L394 BasicCegarLoop]: Found error trace [2018-12-01 22:09:57,556 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 22:09:57,557 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-01 22:09:57,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 22:09:57,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1819196168, now seen corresponding path program 1 times [2018-12-01 22:09:57,557 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-01 22:09:57,557 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/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 [2018-12-01 22:09:57,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 22:09:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 22:09:57,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 22:09:57,665 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 48 [2018-12-01 22:09:57,668 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 39 [2018-12-01 22:09:57,682 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 24 [2018-12-01 22:09:57,683 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-01 22:09:57,687 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 22:09:57,692 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-01 22:09:57,703 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-12-01 22:09:57,703 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:64, output treesize:34 [2018-12-01 22:09:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 22:09:58,148 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-01 22:09:58,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 22:09:58,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-12-01 22:09:58,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-01 22:09:58,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-01 22:09:58,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-12-01 22:09:58,156 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 15 states. [2018-12-01 22:09:59,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 22:09:59,552 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-12-01 22:09:59,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-01 22:09:59,553 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 32 [2018-12-01 22:09:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-01 22:09:59,554 INFO L225 Difference]: With dead ends: 33 [2018-12-01 22:09:59,554 INFO L226 Difference]: Without dead ends: 0 [2018-12-01 22:09:59,554 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2018-12-01 22:09:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-01 22:09:59,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-01 22:09:59,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-01 22:09:59,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-01 22:09:59,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-01 22:09:59,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-01 22:09:59,555 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 22:09:59,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-01 22:09:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-01 22:09:59,555 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 22:09:59,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-01 22:09:59,610 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-01 22:09:59,610 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-01 22:09:59,610 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-01 22:09:59,610 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 56) no Hoare annotation was computed. [2018-12-01 22:09:59,610 INFO L448 ceAbstractionStarter]: For program point round_doubleFINAL(lines 17 64) no Hoare annotation was computed. [2018-12-01 22:09:59,610 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 53) no Hoare annotation was computed. [2018-12-01 22:09:59,610 INFO L448 ceAbstractionStarter]: For program point L52-2(lines 52 53) no Hoare annotation was computed. [2018-12-01 22:09:59,610 INFO L451 ceAbstractionStarter]: At program point round_doubleENTRY(lines 17 64) the Hoare annotation is: true [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 40) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 62) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 17 64) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L57-2(lines 57 62) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point round_doubleEXIT(lines 17 64) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L20-1(lines 20 25) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L444 ceAbstractionStarter]: At program point L20-2(lines 20 25) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L20-3(lines 20 25) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 56) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 45) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 31) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L30-2(lines 30 31) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 66 76) no Hoare annotation was computed. [2018-12-01 22:09:59,611 INFO L448 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 66 76) no Hoare annotation was computed. [2018-12-01 22:09:59,612 INFO L451 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 66 76) the Hoare annotation is: true [2018-12-01 22:09:59,612 INFO L448 ceAbstractionStarter]: For program point L69-1(lines 69 73) no Hoare annotation was computed. [2018-12-01 22:09:59,612 INFO L444 ceAbstractionStarter]: At program point L69-2(lines 69 73) the Hoare annotation is: (= |__signbit_double_#in~x| __signbit_double_~x) [2018-12-01 22:09:59,612 INFO L448 ceAbstractionStarter]: For program point L69-3(lines 69 73) no Hoare annotation was computed. [2018-12-01 22:09:59,612 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-01 22:09:59,612 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-01 22:09:59,612 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-01 22:09:59,612 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-01 22:09:59,612 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-12-01 22:09:59,612 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-12-01 22:09:59,612 INFO L448 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-12-01 22:09:59,612 INFO L448 ceAbstractionStarter]: For program point L90(line 90) no Hoare annotation was computed. [2018-12-01 22:09:59,612 INFO L444 ceAbstractionStarter]: At program point L90-1(line 90) the Hoare annotation is: (and (exists ((|v_q#valueAsBitvector_5| (_ BitVec 64)) (round_double_~lsw~0 (_ BitVec 32))) (and (= (let ((.cse0 (concat (bvand (_ bv2147483648 32) ((_ extract 63 32) |v_q#valueAsBitvector_5|)) round_double_~lsw~0))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_q#valueAsBitvector_5|) ((_ extract 62 52) |v_q#valueAsBitvector_5|) ((_ extract 51 0) |v_q#valueAsBitvector_5|))))) (= (_ +zero 11 53) main_~x~0) |main_#t~short10|) [2018-12-01 22:09:59,613 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-12-01 22:09:59,613 INFO L448 ceAbstractionStarter]: For program point L90-2(line 90) no Hoare annotation was computed. [2018-12-01 22:09:59,613 INFO L444 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= (_ +zero 11 53) main_~x~0) [2018-12-01 22:09:59,613 INFO L448 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-12-01 22:09:59,613 INFO L448 ceAbstractionStarter]: For program point L90-4(lines 90 93) no Hoare annotation was computed. [2018-12-01 22:09:59,613 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-12-01 22:09:59,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 10:09:59 BoogieIcfgContainer [2018-12-01 22:09:59,620 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-01 22:09:59,621 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 22:09:59,621 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 22:09:59,621 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 22:09:59,621 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 10:09:54" (3/4) ... [2018-12-01 22:09:59,623 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 22:09:59,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-01 22:09:59,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-12-01 22:09:59,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-12-01 22:09:59,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-01 22:09:59,630 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-01 22:09:59,631 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-01 22:09:59,631 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 22:09:59,647 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-01 22:09:59,648 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-01 22:09:59,662 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1071fd78-1895-42a6-b149-acfc6562da55/bin-2019/uautomizer/witness.graphml [2018-12-01 22:09:59,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 22:09:59,662 INFO L168 Benchmark]: Toolchain (without parser) took 5746.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 943.4 MB in the beginning and 819.7 MB in the end (delta: 123.7 MB). Peak memory consumption was 243.2 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:59,663 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:09:59,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.69 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:59,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.33 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 22:09:59,663 INFO L168 Benchmark]: Boogie Preprocessor took 57.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:59,664 INFO L168 Benchmark]: RCFGBuilder took 275.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:59,664 INFO L168 Benchmark]: TraceAbstraction took 5198.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 826.6 MB in the end (delta: 262.2 MB). Peak memory consumption was 262.2 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:59,664 INFO L168 Benchmark]: Witness Printer took 41.21 ms. Allocated memory is still 1.1 GB. Free memory was 826.6 MB in the beginning and 819.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-01 22:09:59,665 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.69 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 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 16.33 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 275.48 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5198.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 826.6 MB in the end (delta: 262.2 MB). Peak memory consumption was 262.2 MB. Max. memory is 11.5 GB. * Witness Printer took 41.21 ms. Allocated memory is still 1.1 GB. Free memory was 826.6 MB in the beginning and 819.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 3.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 157 SDtfs, 134 SDslu, 557 SDs, 0 SdLazy, 266 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 55 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 44 QuantifiedInterpolants, 27229 SizeOfPredicates, 21 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 45 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...