./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1032d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/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 bc388f4eaa6aadf687b7d35c78a026571921b2b6 ....................................................................................................................................................................................................................................................................................................................... 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_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1032d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/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 bc388f4eaa6aadf687b7d35c78a026571921b2b6 ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:11:29,181 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:11:29,182 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:11:29,189 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:11:29,189 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:11:29,190 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:11:29,191 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:11:29,192 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:11:29,193 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:11:29,193 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:11:29,194 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:11:29,194 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:11:29,195 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:11:29,196 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:11:29,196 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:11:29,197 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:11:29,197 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:11:29,199 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:11:29,200 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:11:29,201 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:11:29,202 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:11:29,202 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:11:29,204 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:11:29,204 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:11:29,204 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:11:29,205 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:11:29,206 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:11:29,206 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:11:29,207 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:11:29,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:11:29,208 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:11:29,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:11:29,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:11:29,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:11:29,209 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:11:29,209 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:11:29,210 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 10:11:29,219 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:11:29,220 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:11:29,220 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:11:29,220 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 10:11:29,221 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:11:29,221 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:11:29,221 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:11:29,221 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:11:29,221 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:11:29,222 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:11:29,222 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:11:29,222 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:11:29,222 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:11:29,222 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:11:29,222 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:11:29,222 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:11:29,223 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:11:29,223 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:11:29,223 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:11:29,223 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:11:29,223 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:11:29,223 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:11:29,223 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:11:29,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:11:29,224 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:11:29,224 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:11:29,224 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:11:29,224 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:11:29,224 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:11:29,224 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:11:29,224 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_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/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 -> bc388f4eaa6aadf687b7d35c78a026571921b2b6 [2018-11-18 10:11:29,248 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:11:29,256 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:11:29,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:11:29,258 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:11:29,259 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:11:29,259 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-11-18 10:11:29,295 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data/b8665c0df/4f6f956ab1724b6ea5cbca6a416a41da/FLAG233bad2f5 [2018-11-18 10:11:29,703 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:11:29,704 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/sv-benchmarks/c/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-11-18 10:11:29,710 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data/b8665c0df/4f6f956ab1724b6ea5cbca6a416a41da/FLAG233bad2f5 [2018-11-18 10:11:29,720 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data/b8665c0df/4f6f956ab1724b6ea5cbca6a416a41da [2018-11-18 10:11:29,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:11:29,722 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:11:29,723 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:11:29,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:11:29,725 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:11:29,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e5471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29, skipping insertion in model container [2018-11-18 10:11:29,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:11:29,748 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:11:29,868 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:11:29,870 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:11:29,893 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:11:29,906 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:11:29,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29 WrapperNode [2018-11-18 10:11:29,906 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:11:29,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:11:29,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:11:29,907 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:11:29,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (1/1) ... [2018-11-18 10:11:29,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:11:29,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:11:29,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:11:29,982 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:11:29,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:11:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:11:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:11:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-18 10:11:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 10:11:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:11:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:11:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-18 10:11:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:11:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 10:11:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:11:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:11:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:11:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 10:11:30,027 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 10:11:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:11:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:11:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:11:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 10:11:30,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 10:11:30,251 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:11:30,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:11:30 BoogieIcfgContainer [2018-11-18 10:11:30,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:11:30,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:11:30,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:11:30,255 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:11:30,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:11:29" (1/3) ... [2018-11-18 10:11:30,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274079e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:11:30, skipping insertion in model container [2018-11-18 10:11:30,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:29" (2/3) ... [2018-11-18 10:11:30,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274079e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:11:30, skipping insertion in model container [2018-11-18 10:11:30,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:11:30" (3/3) ... [2018-11-18 10:11:30,258 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d_true-unreach-call.c [2018-11-18 10:11:30,266 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:11:30,273 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:11:30,286 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:11:30,312 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:11:30,313 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:11:30,313 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:11:30,313 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:11:30,313 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:11:30,313 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:11:30,314 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:11:30,314 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:11:30,314 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:11:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 10:11:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 10:11:30,334 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:11:30,335 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:11:30,337 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:11:30,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:11:30,342 INFO L82 PathProgramCache]: Analyzing trace with hash -660389474, now seen corresponding path program 1 times [2018-11-18 10:11:30,343 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:11:30,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:11:30,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:11:30,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:11:30,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:11:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:11:30,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:11:30,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:11:30,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:11:30,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:11:30,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:11:30,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:11:30,473 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 10:11:30,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:11:30,491 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2018-11-18 10:11:30,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:11:30,492 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-11-18 10:11:30,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:11:30,500 INFO L225 Difference]: With dead ends: 76 [2018-11-18 10:11:30,500 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 10:11:30,502 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:11:30,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 10:11:30,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 10:11:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 10:11:30,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-18 10:11:30,525 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 25 [2018-11-18 10:11:30,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:11:30,525 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-18 10:11:30,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:11:30,526 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-18 10:11:30,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 10:11:30,526 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:11:30,527 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:11:30,527 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:11:30,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:11:30,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1200366340, now seen corresponding path program 1 times [2018-11-18 10:11:30,527 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:11:30,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:11:30,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:11:30,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:11:30,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:11:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:11:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:11:30,627 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:11:30,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:11:30 BoogieIcfgContainer [2018-11-18 10:11:30,647 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:11:30,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:11:30,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:11:30,647 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:11:30,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:11:30" (3/4) ... [2018-11-18 10:11:30,650 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:11:30,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:11:30,651 INFO L168 Benchmark]: Toolchain (without parser) took 928.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -145.3 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:30,652 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:11:30,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.38 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:30,653 INFO L168 Benchmark]: Boogie Preprocessor took 74.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -213.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:30,654 INFO L168 Benchmark]: RCFGBuilder took 270.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:30,654 INFO L168 Benchmark]: TraceAbstraction took 394.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:30,655 INFO L168 Benchmark]: Witness Printer took 2.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:11:30,657 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.38 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.1 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -213.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 270.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 394.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 91]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 40, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L86] double x = -1.0 / 0.0; [L87] CALL, EXPR round_double(x) VAL [\old(x)=10737418243] [L15] __int32_t msw, exponent_less_1023; [L16] __uint32_t lsw; VAL [\old(x)=10737418243, x=10737418243] [L18] FCALL ieee_double_shape_type ew_u; [L19] FCALL ew_u.value = (x) [L20] EXPR, FCALL ew_u.parts.msw [L20] (msw) = ew_u.parts.msw [L21] EXPR, FCALL ew_u.parts.lsw [L21] (lsw) = ew_u.parts.lsw [L22] COND FALSE !(0) VAL [\old(x)=10737418243, lsw=2147483655, msw=2147483647, x=10737418243] [L23] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 VAL [\old(x)=10737418243, exponent_less_1023=1024, lsw=2147483655, msw=2147483647, x=10737418243] [L24] COND FALSE !(exponent_less_1023 < 20) VAL [\old(x)=10737418243, exponent_less_1023=1024, lsw=2147483655, msw=2147483647, x=10737418243] [L38] COND TRUE exponent_less_1023 > 51 VAL [\old(x)=10737418243, exponent_less_1023=1024, lsw=2147483655, msw=2147483647, x=10737418243] [L39] COND TRUE exponent_less_1023 == 1024 [L40] RET return x + x; VAL [\old(x)=10737418243, exponent_less_1023=1024, lsw=2147483655, msw=2147483647, x=10737418243] [L87] EXPR round_double(x) VAL [round_double(x)=10737418248, x=10737418243] [L87] double res = round_double(x); [L90] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418248] [L65] __int32_t hx, lx; VAL [\old(x)=10737418248, x=10737418248] [L67] FCALL ieee_double_shape_type ew_u; [L68] FCALL ew_u.value = (x) [L69] EXPR, FCALL ew_u.parts.msw [L69] (hx) = ew_u.parts.msw [L70] EXPR, FCALL ew_u.parts.lsw [L70] (lx) = ew_u.parts.lsw [L71] COND FALSE !(0) VAL [\old(x)=10737418248, hx=-2147483648, lx=-2147483648, x=10737418248] [L72] hx &= 0x7fffffff [L73] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L74] hx = 0x7ff00000 - hx [L75] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418248, \result=0, hx=2146435072, lx=-2147483648, x=10737418248] [L90] EXPR isinf_double(res) VAL [isinf_double(res)=0, res=10737418248, x=10737418243] [L90] COND TRUE !isinf_double(res) [L91] __VERIFIER_error() VAL [res=10737418248, x=10737418243] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 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=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 10:11:32,068 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:11:32,069 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:11:32,077 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:11:32,077 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:11:32,078 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:11:32,078 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:11:32,080 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:11:32,081 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:11:32,081 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:11:32,082 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:11:32,082 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:11:32,083 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:11:32,083 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:11:32,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:11:32,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:11:32,085 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:11:32,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:11:32,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:11:32,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:11:32,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:11:32,091 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:11:32,092 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:11:32,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:11:32,093 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:11:32,093 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:11:32,094 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:11:32,095 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:11:32,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:11:32,096 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:11:32,097 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:11:32,097 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:11:32,097 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:11:32,097 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:11:32,098 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:11:32,099 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:11:32,099 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 10:11:32,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:11:32,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:11:32,111 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:11:32,111 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 10:11:32,111 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:11:32,111 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:11:32,112 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:11:32,112 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:11:32,112 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:11:32,112 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:11:32,112 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:11:32,112 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:11:32,112 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:11:32,112 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:11:32,112 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:11:32,113 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:11:32,113 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:11:32,113 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:11:32,113 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:11:32,113 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:11:32,113 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:11:32,113 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:11:32,113 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:11:32,114 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:11:32,114 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:11:32,114 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:11:32,114 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:11:32,114 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:11:32,114 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 10:11:32,114 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:11:32,114 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:11:32,114 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:11:32,115 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_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/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 -> bc388f4eaa6aadf687b7d35c78a026571921b2b6 [2018-11-18 10:11:32,144 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:11:32,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:11:32,154 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:11:32,155 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:11:32,155 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:11:32,155 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-11-18 10:11:32,190 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data/928ae8679/3a77d53f3d5947d9a33241ffd93d4f5e/FLAG5ab3b866a [2018-11-18 10:11:32,595 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:11:32,595 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/sv-benchmarks/c/float-newlib/double_req_bl_1032d_true-unreach-call.c [2018-11-18 10:11:32,599 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data/928ae8679/3a77d53f3d5947d9a33241ffd93d4f5e/FLAG5ab3b866a [2018-11-18 10:11:32,608 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/data/928ae8679/3a77d53f3d5947d9a33241ffd93d4f5e [2018-11-18 10:11:32,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:11:32,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 10:11:32,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:11:32,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:11:32,615 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:11:32,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26edcba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32, skipping insertion in model container [2018-11-18 10:11:32,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:11:32,644 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:11:32,785 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:11:32,789 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:11:32,815 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:11:32,837 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:11:32,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32 WrapperNode [2018-11-18 10:11:32,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:11:32,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:11:32,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:11:32,838 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:11:32,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (1/1) ... [2018-11-18 10:11:32,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:11:32,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:11:32,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:11:32,879 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:11:32,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:11:32,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:11:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:11:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure round_double [2018-11-18 10:11:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-18 10:11:32,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:11:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 10:11:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure round_double [2018-11-18 10:11:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:11:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 10:11:32,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 10:11:32,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 10:11:33,075 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:11:33,203 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 10:11:33,239 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:11:33,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:11:33 BoogieIcfgContainer [2018-11-18 10:11:33,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:11:33,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:11:33,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:11:33,243 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:11:33,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:11:32" (1/3) ... [2018-11-18 10:11:33,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b95e72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:11:33, skipping insertion in model container [2018-11-18 10:11:33,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:11:32" (2/3) ... [2018-11-18 10:11:33,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b95e72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:11:33, skipping insertion in model container [2018-11-18 10:11:33,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:11:33" (3/3) ... [2018-11-18 10:11:33,246 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1032d_true-unreach-call.c [2018-11-18 10:11:33,251 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:11:33,256 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:11:33,267 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:11:33,285 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:11:33,285 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:11:33,285 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:11:33,285 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:11:33,285 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:11:33,285 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:11:33,286 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:11:33,286 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:11:33,286 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:11:33,299 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-18 10:11:33,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 10:11:33,302 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:11:33,303 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:11:33,304 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:11:33,307 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:11:33,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1712125210, now seen corresponding path program 1 times [2018-11-18 10:11:33,310 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:11:33,310 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 10:11:33,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:11:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:11:33,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:11:33,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:11:33,397 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:11:33,410 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:11:33,411 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:11:33,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:11:33,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:11:33,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:11:33,422 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-18 10:11:33,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:11:33,437 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2018-11-18 10:11:33,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:11:33,438 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 10:11:33,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:11:33,444 INFO L225 Difference]: With dead ends: 74 [2018-11-18 10:11:33,444 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 10:11:33,447 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:11:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 10:11:33,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 10:11:33,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:11:33,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-11-18 10:11:33,475 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 24 [2018-11-18 10:11:33,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:11:33,475 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-11-18 10:11:33,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:11:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-11-18 10:11:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 10:11:33,476 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:11:33,477 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:11:33,477 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:11:33,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:11:33,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1963485031, now seen corresponding path program 1 times [2018-11-18 10:11:33,478 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:11:33,478 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 10:11:33,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:11:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:11:33,616 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:11:34,073 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-18 10:11:34,415 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 10:11:34,416 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 10:11:34,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 10:11:34,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-18 10:11:34,481 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 10:11:34,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 10:11:34,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 10:11:34,511 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 10:11:34,519 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:11:34,524 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 10:11:34,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 10:11:34,544 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:46, output treesize:18 [2018-11-18 10:11:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:11:35,009 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:11:35,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:11:35,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 10:11:35,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 10:11:35,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 10:11:35,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 10:11:35,020 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 11 states. [2018-11-18 10:11:36,633 WARN L180 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 10:11:38,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:11:38,651 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2018-11-18 10:11:38,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 10:11:38,652 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-18 10:11:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:11:38,654 INFO L225 Difference]: With dead ends: 46 [2018-11-18 10:11:38,654 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 10:11:38,655 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 10:11:38,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 10:11:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-11-18 10:11:38,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 10:11:38,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-18 10:11:38,662 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 26 [2018-11-18 10:11:38,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:11:38,663 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-18 10:11:38,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 10:11:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-18 10:11:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 10:11:38,663 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:11:38,663 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:11:38,664 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:11:38,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:11:38,664 INFO L82 PathProgramCache]: Analyzing trace with hash 2038079258, now seen corresponding path program 1 times [2018-11-18 10:11:38,664 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:11:38,664 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 10:11:38,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:11:38,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:11:38,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:11:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:11:38,806 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:11:38,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:11:38,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:11:38,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:11:38,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:11:38,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:11:38,815 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 7 states. [2018-11-18 10:11:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:11:39,273 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2018-11-18 10:11:39,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 10:11:39,274 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 10:11:39,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:11:39,275 INFO L225 Difference]: With dead ends: 45 [2018-11-18 10:11:39,275 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:11:39,276 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:11:39,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:11:39,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:11:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:11:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:11:39,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 10:11:39,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:11:39,276 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:11:39,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:11:39,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:11:39,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:11:39,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:11:39,336 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:11:39,336 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:11:39,336 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:11:39,336 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 66 71) no Hoare annotation was computed. [2018-11-18 10:11:39,336 INFO L421 ceAbstractionStarter]: At program point L66-3(lines 66 71) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-18 10:11:39,336 INFO L425 ceAbstractionStarter]: For program point L66-4(lines 66 71) no Hoare annotation was computed. [2018-11-18 10:11:39,336 INFO L425 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 64 76) no Hoare annotation was computed. [2018-11-18 10:11:39,336 INFO L425 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 64 76) no Hoare annotation was computed. [2018-11-18 10:11:39,336 INFO L428 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 64 76) the Hoare annotation is: true [2018-11-18 10:11:39,336 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 28) no Hoare annotation was computed. [2018-11-18 10:11:39,336 INFO L425 ceAbstractionStarter]: For program point round_doubleFINAL(lines 14 61) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L27-2(lines 27 28) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L428 ceAbstractionStarter]: At program point round_doubleENTRY(lines 14 61) the Hoare annotation is: true [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 53) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point round_doubleEXIT(lines 14 61) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 37) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 59) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L54-2(lines 14 61) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L54-3(lines 54 59) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 22) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 22) the Hoare annotation is: (= |round_double_#in~x| round_double_~x) [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L46(lines 46 47) no Hoare annotation was computed. [2018-11-18 10:11:39,337 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 22) no Hoare annotation was computed. [2018-11-18 10:11:39,338 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 53) no Hoare annotation was computed. [2018-11-18 10:11:39,338 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 42) no Hoare annotation was computed. [2018-11-18 10:11:39,338 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:11:39,338 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:11:39,338 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:11:39,338 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:11:39,338 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 78 96) the Hoare annotation is: true [2018-11-18 10:11:39,338 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 78 96) no Hoare annotation was computed. [2018-11-18 10:11:39,338 INFO L425 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-11-18 10:11:39,338 INFO L421 ceAbstractionStarter]: At program point L90(line 90) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= .cse0 main_~x~0))) [2018-11-18 10:11:39,339 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 90 93) no Hoare annotation was computed. [2018-11-18 10:11:39,339 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 78 96) no Hoare annotation was computed. [2018-11-18 10:11:39,339 INFO L421 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0) [2018-11-18 10:11:39,339 INFO L425 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-11-18 10:11:39,339 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2018-11-18 10:11:39,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:11:39 BoogieIcfgContainer [2018-11-18 10:11:39,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:11:39,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:11:39,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:11:39,348 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:11:39,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:11:33" (3/4) ... [2018-11-18 10:11:39,351 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:11:39,356 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:11:39,356 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-18 10:11:39,356 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure round_double [2018-11-18 10:11:39,356 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:11:39,359 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-18 10:11:39,360 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-18 10:11:39,360 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:11:39,376 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 10:11:39,377 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 10:11:39,396 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3e8d1a53-6766-42b1-8f38-89ba6e2126ba/bin-2019/uautomizer/witness.graphml [2018-11-18 10:11:39,396 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:11:39,397 INFO L168 Benchmark]: Toolchain (without parser) took 6786.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 950.8 MB in the beginning and 960.9 MB in the end (delta: -10.0 MB). Peak memory consumption was 144.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:39,397 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:11:39,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.10 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:39,398 INFO L168 Benchmark]: Boogie Preprocessor took 40.21 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:11:39,398 INFO L168 Benchmark]: RCFGBuilder took 361.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:39,398 INFO L168 Benchmark]: TraceAbstraction took 6107.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.6 MB in the end (delta: 155.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:39,399 INFO L168 Benchmark]: Witness Printer took 48.58 ms. Allocated memory is still 1.2 GB. Free memory was 967.6 MB in the beginning and 960.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:11:39,400 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 226.10 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.21 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 361.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6107.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 967.6 MB in the end (delta: 155.6 MB). Peak memory consumption was 155.6 MB. Max. memory is 11.5 GB. * Witness Printer took 48.58 ms. Allocated memory is still 1.2 GB. Free memory was 967.6 MB in the beginning and 960.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 6.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 4.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 87 SDslu, 322 SDs, 0 SdLazy, 162 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 49 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 73 ConstructedInterpolants, 12 QuantifiedInterpolants, 11929 SizeOfPredicates, 10 NumberOfNonLiveVariables, 214 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...