./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_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_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 8be2489bdcd97218605067fa4593696f9050abdf ........................................................................................................................................................................................................................................................................................................ 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_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 8be2489bdcd97218605067fa4593696f9050abdf ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 06:52:01,169 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 06:52:01,170 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 06:52:01,177 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 06:52:01,177 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 06:52:01,178 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 06:52:01,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 06:52:01,180 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 06:52:01,181 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 06:52:01,182 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 06:52:01,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 06:52:01,183 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 06:52:01,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 06:52:01,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 06:52:01,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 06:52:01,185 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 06:52:01,186 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 06:52:01,187 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 06:52:01,188 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 06:52:01,189 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 06:52:01,190 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 06:52:01,191 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 06:52:01,193 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 06:52:01,193 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 06:52:01,193 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 06:52:01,194 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 06:52:01,194 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 06:52:01,195 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 06:52:01,195 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 06:52:01,196 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 06:52:01,196 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 06:52:01,197 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 06:52:01,197 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 06:52:01,197 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 06:52:01,198 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 06:52:01,198 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 06:52:01,198 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 06:52:01,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 06:52:01,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 06:52:01,209 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 06:52:01,210 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 06:52:01,210 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 06:52:01,210 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 06:52:01,210 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 06:52:01,210 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 06:52:01,210 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 06:52:01,211 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 06:52:01,212 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 06:52:01,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 06:52:01,212 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 06:52:01,212 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 06:52:01,212 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 06:52:01,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 06:52:01,212 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 06:52:01,212 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 06:52:01,212 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 06:52:01,213 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 06:52:01,213 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 06:52:01,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 06:52:01,213 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_a3221801-58fa-4cbc-b151-9d6a551af333/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 -> 8be2489bdcd97218605067fa4593696f9050abdf [2018-12-02 06:52:01,234 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 06:52:01,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 06:52:01,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 06:52:01,243 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 06:52:01,243 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 06:52:01,244 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-02 06:52:01,277 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data/45db49b23/59010278d0c04ed7b109c656bfd157c9/FLAGa9c5411eb [2018-12-02 06:52:01,652 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 06:52:01,652 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-02 06:52:01,656 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data/45db49b23/59010278d0c04ed7b109c656bfd157c9/FLAGa9c5411eb [2018-12-02 06:52:02,026 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data/45db49b23/59010278d0c04ed7b109c656bfd157c9 [2018-12-02 06:52:02,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 06:52:02,034 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 06:52:02,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 06:52:02,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 06:52:02,041 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 06:52:02,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56157e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02, skipping insertion in model container [2018-12-02 06:52:02,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 06:52:02,064 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 06:52:02,165 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:52:02,167 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 06:52:02,185 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:52:02,197 INFO L195 MainTranslator]: Completed translation [2018-12-02 06:52:02,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02 WrapperNode [2018-12-02 06:52:02,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 06:52:02,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 06:52:02,198 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 06:52:02,198 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 06:52:02,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 06:52:02,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 06:52:02,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 06:52:02,241 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 06:52:02,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... [2018-12-02 06:52:02,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 06:52:02,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 06:52:02,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 06:52:02,260 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 06:52:02,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 [2018-12-02 06:52:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 06:52:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 06:52:02,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 06:52:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 06:52:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 06:52:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 06:52:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-02 06:52:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-02 06:52:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 06:52:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 06:52:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 06:52:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 06:52:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 06:52:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 06:52:02,444 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 06:52:02,444 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-02 06:52:02,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:02 BoogieIcfgContainer [2018-12-02 06:52:02,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 06:52:02,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 06:52:02,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 06:52:02,448 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 06:52:02,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:52:02" (1/3) ... [2018-12-02 06:52:02,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499b5de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:02, skipping insertion in model container [2018-12-02 06:52:02,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:02" (2/3) ... [2018-12-02 06:52:02,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499b5de4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:02, skipping insertion in model container [2018-12-02 06:52:02,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:02" (3/3) ... [2018-12-02 06:52:02,451 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-12-02 06:52:02,459 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 06:52:02,463 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 06:52:02,472 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 06:52:02,489 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 06:52:02,490 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 06:52:02,490 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 06:52:02,490 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 06:52:02,490 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 06:52:02,490 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 06:52:02,490 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 06:52:02,490 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 06:52:02,490 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 06:52:02,501 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-02 06:52:02,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 06:52:02,505 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:52:02,505 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:52:02,507 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:52:02,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:52:02,510 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-12-02 06:52:02,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:52:02,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:52:02,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:52:02,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:52:02,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:52:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:52:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:52:02,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:52:02,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 06:52:02,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 06:52:02,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 06:52:02,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 06:52:02,603 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-02 06:52:02,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:52:02,615 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-12-02 06:52:02,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 06:52:02,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-02 06:52:02,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:52:02,622 INFO L225 Difference]: With dead ends: 76 [2018-12-02 06:52:02,622 INFO L226 Difference]: Without dead ends: 38 [2018-12-02 06:52:02,624 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 [2018-12-02 06:52:02,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-02 06:52:02,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-02 06:52:02,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 06:52:02,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-12-02 06:52:02,646 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-12-02 06:52:02,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:52:02,646 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-12-02 06:52:02,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 06:52:02,646 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-02 06:52:02,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 06:52:02,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:52:02,647 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:52:02,647 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:52:02,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:52:02,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-12-02 06:52:02,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 06:52:02,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 06:52:02,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:52:02,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:52:02,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 06:52:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:52:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 06:52:02,703 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 06:52:02,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:52:02 BoogieIcfgContainer [2018-12-02 06:52:02,721 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 06:52:02,721 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 06:52:02,721 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 06:52:02,722 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 06:52:02,722 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:02" (3/4) ... [2018-12-02 06:52:02,724 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 06:52:02,724 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 06:52:02,725 INFO L168 Benchmark]: Toolchain (without parser) took 692.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -130.6 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:02,725 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-02 06:52:02,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 162.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:02,726 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.2 MB in the beginning and 1.2 GB in the end (delta: -207.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:02,727 INFO L168 Benchmark]: Boogie Preprocessor took 18.78 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:02,727 INFO L168 Benchmark]: RCFGBuilder took 185.04 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:02,727 INFO L168 Benchmark]: TraceAbstraction took 275.76 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:02,727 INFO L168 Benchmark]: Witness Printer took 2.75 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. [2018-12-02 06:52:02,729 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 162.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 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 43.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 944.2 MB in the beginning and 1.2 GB in the end (delta: -207.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.78 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 185.04 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 275.76 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: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.75 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: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someUnaryDOUBLEoperation at line 91, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418244, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = -0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=10737418245] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [\old(x)=10737418245, \result=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L92] RET, EXPR ceil_double(x) VAL [ceil_double(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 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 [2018-12-02 06:52:03,950 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 06:52:03,951 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 06:52:03,957 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 06:52:03,957 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 06:52:03,958 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 06:52:03,958 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 06:52:03,959 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 06:52:03,960 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 06:52:03,960 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 06:52:03,961 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 06:52:03,961 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 06:52:03,961 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 06:52:03,962 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 06:52:03,962 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 06:52:03,963 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 06:52:03,963 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 06:52:03,964 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 06:52:03,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 06:52:03,966 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 06:52:03,966 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 06:52:03,967 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 06:52:03,968 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 06:52:03,968 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 06:52:03,968 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 06:52:03,968 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 06:52:03,969 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 06:52:03,969 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 06:52:03,970 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 06:52:03,970 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 06:52:03,970 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 06:52:03,971 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 06:52:03,971 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 06:52:03,971 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 06:52:03,971 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 06:52:03,972 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 06:52:03,972 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 06:52:03,979 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 06:52:03,979 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 06:52:03,979 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 06:52:03,980 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 06:52:03,980 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 06:52:03,980 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 06:52:03,980 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 06:52:03,980 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 06:52:03,980 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 06:52:03,980 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 06:52:03,980 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 06:52:03,981 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 06:52:03,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 06:52:03,982 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 06:52:03,982 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 06:52:03,982 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_a3221801-58fa-4cbc-b151-9d6a551af333/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 -> 8be2489bdcd97218605067fa4593696f9050abdf [2018-12-02 06:52:04,001 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 06:52:04,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 06:52:04,011 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 06:52:04,012 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 06:52:04,012 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 06:52:04,013 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-02 06:52:04,048 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data/56a32633e/4c547ee96d104e0ca9cd209baa524d27/FLAGbefc5840e [2018-12-02 06:52:04,487 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 06:52:04,488 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-02 06:52:04,491 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data/56a32633e/4c547ee96d104e0ca9cd209baa524d27/FLAGbefc5840e [2018-12-02 06:52:04,500 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/data/56a32633e/4c547ee96d104e0ca9cd209baa524d27 [2018-12-02 06:52:04,501 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 06:52:04,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 06:52:04,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 06:52:04,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 06:52:04,505 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 06:52:04,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af796df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04, skipping insertion in model container [2018-12-02 06:52:04,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 06:52:04,522 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 06:52:04,617 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:52:04,620 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 06:52:04,638 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 06:52:04,655 INFO L195 MainTranslator]: Completed translation [2018-12-02 06:52:04,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04 WrapperNode [2018-12-02 06:52:04,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 06:52:04,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 06:52:04,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 06:52:04,656 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 06:52:04,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 06:52:04,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 06:52:04,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 06:52:04,672 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 06:52:04,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... [2018-12-02 06:52:04,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 06:52:04,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 06:52:04,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 06:52:04,723 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 06:52:04,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 [2018-12-02 06:52:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-02 06:52:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 06:52:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 06:52:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 06:52:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 06:52:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-02 06:52:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-02 06:52:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-02 06:52:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 06:52:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 06:52:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 06:52:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 06:52:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 06:52:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 06:52:04,925 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 06:52:05,503 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 06:52:05,504 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-02 06:52:05,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:05 BoogieIcfgContainer [2018-12-02 06:52:05,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 06:52:05,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 06:52:05,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 06:52:05,507 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 06:52:05,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:52:04" (1/3) ... [2018-12-02 06:52:05,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b97b390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:05, skipping insertion in model container [2018-12-02 06:52:05,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:04" (2/3) ... [2018-12-02 06:52:05,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b97b390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:05, skipping insertion in model container [2018-12-02 06:52:05,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:05" (3/3) ... [2018-12-02 06:52:05,509 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-12-02 06:52:05,515 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 06:52:05,519 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 06:52:05,528 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 06:52:05,544 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 06:52:05,544 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 06:52:05,544 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 06:52:05,544 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 06:52:05,545 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 06:52:05,545 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 06:52:05,545 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 06:52:05,545 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 06:52:05,545 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 06:52:05,554 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-02 06:52:05,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 06:52:05,557 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:52:05,558 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:52:05,559 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:52:05,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:52:05,562 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-12-02 06:52:05,564 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 06:52:05,564 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 [2018-12-02 06:52:05,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:52:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:52:05,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:52:05,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:52:05,622 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 06:52:05,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:52:05,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 06:52:05,632 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 06:52:05,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 06:52:05,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 06:52:05,640 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-02 06:52:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:52:05,654 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-12-02 06:52:05,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 06:52:05,655 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-02 06:52:05,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:52:05,662 INFO L225 Difference]: With dead ends: 76 [2018-12-02 06:52:05,662 INFO L226 Difference]: Without dead ends: 38 [2018-12-02 06:52:05,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 06:52:05,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-02 06:52:05,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-02 06:52:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 06:52:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-12-02 06:52:05,690 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-12-02 06:52:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:52:05,690 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-12-02 06:52:05,690 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 06:52:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-02 06:52:05,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-02 06:52:05,691 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:52:05,691 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:52:05,691 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:52:05,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:52:05,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-12-02 06:52:05,692 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 06:52:05,692 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 [2018-12-02 06:52:05,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:52:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:52:05,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:52:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:52:05,848 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 06:52:05,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:52:05,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 06:52:05,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 06:52:05,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 06:52:05,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 06:52:05,861 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand 7 states. [2018-12-02 06:52:08,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:52:08,356 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2018-12-02 06:52:08,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 06:52:08,357 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-02 06:52:08,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:52:08,359 INFO L225 Difference]: With dead ends: 62 [2018-12-02 06:52:08,359 INFO L226 Difference]: Without dead ends: 30 [2018-12-02 06:52:08,360 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-02 06:52:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-02 06:52:08,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-12-02 06:52:08,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-02 06:52:08,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-12-02 06:52:08,364 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 19 [2018-12-02 06:52:08,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:52:08,364 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-12-02 06:52:08,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 06:52:08,364 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-02 06:52:08,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 06:52:08,365 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:52:08,365 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:52:08,365 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:52:08,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:52:08,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1067163641, now seen corresponding path program 1 times [2018-12-02 06:52:08,366 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 06:52:08,366 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 [2018-12-02 06:52:08,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:52:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:52:08,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:52:10,268 WARN L180 SmtUtils]: Spent 648.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-02 06:52:10,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:52:10,273 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 06:52:10,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:52:10,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 06:52:10,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 06:52:10,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 06:52:10,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-02 06:52:10,283 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2018-12-02 06:52:13,187 WARN L180 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-02 06:52:14,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:52:14,044 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-12-02 06:52:14,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 06:52:14,051 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-02 06:52:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:52:14,051 INFO L225 Difference]: With dead ends: 34 [2018-12-02 06:52:14,051 INFO L226 Difference]: Without dead ends: 25 [2018-12-02 06:52:14,052 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-02 06:52:14,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-02 06:52:14,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-02 06:52:14,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-02 06:52:14,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-12-02 06:52:14,054 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2018-12-02 06:52:14,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:52:14,054 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-12-02 06:52:14,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 06:52:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-12-02 06:52:14,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 06:52:14,055 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:52:14,055 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 06:52:14,055 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:52:14,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:52:14,055 INFO L82 PathProgramCache]: Analyzing trace with hash -232086029, now seen corresponding path program 1 times [2018-12-02 06:52:14,056 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 06:52:14,056 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 [2018-12-02 06:52:14,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:52:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:52:14,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:52:14,175 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 45 treesize of output 39 [2018-12-02 06:52:14,178 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 39 treesize of output 36 [2018-12-02 06:52:14,189 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 15 [2018-12-02 06:52:14,189 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-02 06:52:14,191 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 06:52:14,193 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-02 06:52:14,195 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-02 06:52:14,196 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-12-02 06:52:14,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:52:14,255 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 06:52:14,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:52:14,264 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 06:52:14,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 06:52:14,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 06:52:14,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-02 06:52:14,264 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 8 states. [2018-12-02 06:52:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:52:14,496 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-12-02 06:52:14,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 06:52:14,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-12-02 06:52:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:52:14,497 INFO L225 Difference]: With dead ends: 34 [2018-12-02 06:52:14,497 INFO L226 Difference]: Without dead ends: 25 [2018-12-02 06:52:14,498 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-02 06:52:14,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-02 06:52:14,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-02 06:52:14,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-02 06:52:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-12-02 06:52:14,500 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-12-02 06:52:14,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:52:14,500 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-12-02 06:52:14,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 06:52:14,501 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-12-02 06:52:14,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 06:52:14,501 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 06:52:14,501 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] [2018-12-02 06:52:14,501 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 06:52:14,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 06:52:14,502 INFO L82 PathProgramCache]: Analyzing trace with hash 785443165, now seen corresponding path program 1 times [2018-12-02 06:52:14,502 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 06:52:14,502 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/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 [2018-12-02 06:52:14,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 06:52:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 06:52:14,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 06:52:14,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 06:52:14,663 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 06:52:14,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 06:52:14,671 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 06:52:14,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 06:52:14,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 06:52:14,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 06:52:14,672 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-12-02 06:52:15,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 06:52:15,188 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-12-02 06:52:15,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 06:52:15,190 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-02 06:52:15,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 06:52:15,190 INFO L225 Difference]: With dead ends: 30 [2018-12-02 06:52:15,190 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 06:52:15,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-02 06:52:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 06:52:15,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 06:52:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 06:52:15,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 06:52:15,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-12-02 06:52:15,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 06:52:15,191 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 06:52:15,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 06:52:15,191 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 06:52:15,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 06:52:15,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 06:52:15,285 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-12-02 06:52:15,286 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-12-02 06:52:15,287 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= |ceil_double_#in~x| ceil_double_~x)) [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 06:52:15,288 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) [2018-12-02 06:52:15,288 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2018-12-02 06:52:15,288 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 83 101) the Hoare annotation is: true [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 83 101) no Hoare annotation was computed. [2018-12-02 06:52:15,288 INFO L444 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= main_~x~0 (fp.neg (_ +zero 11 53)))) [2018-12-02 06:52:15,288 INFO L448 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-12-02 06:52:15,289 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 83 101) no Hoare annotation was computed. [2018-12-02 06:52:15,289 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-12-02 06:52:15,293 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 06:52:15,296 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 06:52:15,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:52:15 BoogieIcfgContainer [2018-12-02 06:52:15,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 06:52:15,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 06:52:15,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 06:52:15,298 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 06:52:15,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:05" (3/4) ... [2018-12-02 06:52:15,301 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 06:52:15,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 06:52:15,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-12-02 06:52:15,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 06:52:15,308 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-02 06:52:15,308 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-02 06:52:15,309 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 06:52:15,325 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x [2018-12-02 06:52:15,339 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a3221801-58fa-4cbc-b151-9d6a551af333/bin-2019/uautomizer/witness.graphml [2018-12-02 06:52:15,339 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 06:52:15,339 INFO L168 Benchmark]: Toolchain (without parser) took 10837.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.7 MB in the beginning and 897.6 MB in the end (delta: 47.2 MB). Peak memory consumption was 179.3 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:15,340 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 06:52:15,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.55 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:15,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.98 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 06:52:15,340 INFO L168 Benchmark]: Boogie Preprocessor took 50.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -198.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:15,340 INFO L168 Benchmark]: RCFGBuilder took 781.34 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: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:15,341 INFO L168 Benchmark]: TraceAbstraction took 9793.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.2 MB in the end (delta: 185.0 MB). Peak memory consumption was 185.0 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:15,341 INFO L168 Benchmark]: Witness Printer took 40.55 ms. Allocated memory is still 1.2 GB. Free memory was 904.2 MB in the beginning and 897.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-02 06:52:15,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.55 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.98 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -198.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 781.34 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: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9793.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.2 MB in the end (delta: 185.0 MB). Peak memory consumption was 185.0 MB. Max. memory is 11.5 GB. * Witness Printer took 40.55 ms. Allocated memory is still 1.2 GB. Free memory was 904.2 MB in the beginning and 897.6 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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: 22]: Loop Invariant [2018-12-02 06:52:15,344 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 06:52:15,344 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. SAFE Result, 9.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 140 SDtfs, 176 SDslu, 250 SDs, 0 SdLazy, 201 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 80 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.5s 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 30 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 101 ConstructedInterpolants, 19 QuantifiedInterpolants, 13819 SizeOfPredicates, 15 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 29 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...