./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_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_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ..................................................................................................................................................................................................................................................................................................................... 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_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 11:55:32,463 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:55:32,463 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:55:32,470 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:55:32,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:55:32,470 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:55:32,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:55:32,472 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:55:32,472 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:55:32,473 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:55:32,473 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:55:32,474 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:55:32,474 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:55:32,474 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:55:32,475 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:55:32,475 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:55:32,476 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:55:32,477 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:55:32,478 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:55:32,478 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:55:32,479 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:55:32,479 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:55:32,480 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:55:32,480 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:55:32,481 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:55:32,481 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:55:32,482 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:55:32,482 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:55:32,482 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:55:32,483 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:55:32,483 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:55:32,483 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:55:32,484 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:55:32,484 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:55:32,484 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:55:32,485 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:55:32,485 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 11:55:32,491 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:55:32,492 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:55:32,492 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 11:55:32,492 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 11:55:32,493 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:55:32,493 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:55:32,493 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 11:55:32,493 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:55:32,493 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:55:32,493 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 11:55:32,493 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:55:32,493 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:55:32,493 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 11:55:32,494 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:55:32,494 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 11:55:32,494 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:55:32,494 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 11:55:32,494 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:55:32,494 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 11:55:32,494 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:55:32,494 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 11:55:32,495 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:55:32,495 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 11:55:32,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 11:55:32,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:55:32,495 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:55:32,495 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 11:55:32,495 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 11:55:32,495 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:55:32,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 11:55:32,496 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_525c3568-273f-489a-a694-b7799a2ccd09/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-12-08 11:55:32,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:55:32,519 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:55:32,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:55:32,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:55:32,522 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:55:32,522 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-08 11:55:32,556 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data/b729f31f5/c8e25d02c05d4b9481d2a31c475d0774/FLAGc15ef7794 [2018-12-08 11:55:32,936 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:55:32,936 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-08 11:55:32,939 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data/b729f31f5/c8e25d02c05d4b9481d2a31c475d0774/FLAGc15ef7794 [2018-12-08 11:55:32,947 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data/b729f31f5/c8e25d02c05d4b9481d2a31c475d0774 [2018-12-08 11:55:32,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:55:32,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:55:32,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:55:32,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:55:32,952 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:55:32,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:55:32" (1/1) ... [2018-12-08 11:55:32,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f41b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:32, skipping insertion in model container [2018-12-08 11:55:32,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:55:32" (1/1) ... [2018-12-08 11:55:32,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:55:32,967 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:55:33,058 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:55:33,060 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:55:33,075 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:55:33,087 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:55:33,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33 WrapperNode [2018-12-08 11:55:33,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:55:33,088 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:55:33,088 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:55:33,088 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:55:33,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:55:33,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:55:33,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:55:33,130 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:55:33,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,145 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,149 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... [2018-12-08 11:55:33,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:55:33,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:55:33,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:55:33,150 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:55:33,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/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 [2018-12-08 11:55:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 11:55:33,181 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 11:55:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-08 11:55:33,181 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-08 11:55:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 11:55:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 11:55:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 11:55:33,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 11:55:33,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 11:55:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:55:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-08 11:55:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-08 11:55:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:55:33,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:55:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 11:55:33,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 11:55:33,323 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:55:33,323 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 11:55:33,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:55:33 BoogieIcfgContainer [2018-12-08 11:55:33,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:55:33,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 11:55:33,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 11:55:33,326 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 11:55:33,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:55:32" (1/3) ... [2018-12-08 11:55:33,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f3eb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:55:33, skipping insertion in model container [2018-12-08 11:55:33,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:33" (2/3) ... [2018-12-08 11:55:33,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f3eb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:55:33, skipping insertion in model container [2018-12-08 11:55:33,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:55:33" (3/3) ... [2018-12-08 11:55:33,328 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-12-08 11:55:33,334 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 11:55:33,338 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 11:55:33,347 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 11:55:33,364 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 11:55:33,364 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 11:55:33,364 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 11:55:33,364 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 11:55:33,364 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 11:55:33,365 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 11:55:33,365 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 11:55:33,365 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 11:55:33,365 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 11:55:33,374 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-12-08 11:55:33,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 11:55:33,378 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:55:33,378 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] [2018-12-08 11:55:33,380 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:55:33,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:55:33,383 INFO L82 PathProgramCache]: Analyzing trace with hash -971358766, now seen corresponding path program 1 times [2018-12-08 11:55:33,384 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:55:33,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:55:33,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:55:33,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:55:33,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:55:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:55:33,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:55:33,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:55:33,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 11:55:33,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 11:55:33,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 11:55:33,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:55:33,471 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-12-08 11:55:33,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:55:33,483 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-12-08 11:55:33,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 11:55:33,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-08 11:55:33,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:55:33,490 INFO L225 Difference]: With dead ends: 70 [2018-12-08 11:55:33,490 INFO L226 Difference]: Without dead ends: 35 [2018-12-08 11:55:33,492 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 [2018-12-08 11:55:33,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-08 11:55:33,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-12-08 11:55:33,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-08 11:55:33,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-12-08 11:55:33,513 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-12-08 11:55:33,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:55:33,513 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-12-08 11:55:33,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 11:55:33,514 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-12-08 11:55:33,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 11:55:33,514 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:55:33,514 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] [2018-12-08 11:55:33,514 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:55:33,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:55:33,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1352261581, now seen corresponding path program 1 times [2018-12-08 11:55:33,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 11:55:33,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 11:55:33,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:55:33,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:55:33,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 11:55:33,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:55:33,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 11:55:33,570 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 11:55:33,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:55:33 BoogieIcfgContainer [2018-12-08 11:55:33,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 11:55:33,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 11:55:33,588 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 11:55:33,588 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 11:55:33,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:55:33" (3/4) ... [2018-12-08 11:55:33,590 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 11:55:33,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 11:55:33,591 INFO L168 Benchmark]: Toolchain (without parser) took 642.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 961.3 MB in the beginning and 1.0 GB in the end (delta: -69.3 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:33,592 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-12-08 11:55:33,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.51 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:33,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:33,593 INFO L168 Benchmark]: Boogie Preprocessor took 20.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:33,594 INFO L168 Benchmark]: RCFGBuilder took 173.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:33,594 INFO L168 Benchmark]: TraceAbstraction took 263.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:33,594 INFO L168 Benchmark]: Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:55:33,596 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 137.51 ms. Allocated memory is still 1.0 GB. Free memory was 961.3 MB in the beginning and 950.6 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 42.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 94.9 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 173.43 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 263.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 29.6 MB). Peak memory consumption was 29.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.83 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450946, huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L67] CALL, EXPR floor_float(x) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000] [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, x=6442450952] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (i0) = gf_u.word [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L24] COND FALSE !(j0 < 23) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L44] COND TRUE !((ix) < 0x7f800000L) [L45] return x + x; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L67] RET, EXPR floor_float(x) VAL [floor_float(x)=6442450949, huge_floor=1000000000000000000000000000000, x=6442450952] [L67] float res = floor_float(x); [L70] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_floor=1000000000000000000000000000000, x=6442450949] [L70] RET, EXPR isnan_float(res) VAL [huge_floor=1000000000000000000000000000000, isnan_float(res)=0, res=6442450949, x=6442450952] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450949, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 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=39occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 [2018-12-08 11:55:34,942 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:55:34,943 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:55:34,949 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:55:34,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:55:34,950 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:55:34,951 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:55:34,951 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:55:34,952 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:55:34,953 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:55:34,953 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:55:34,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:55:34,954 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:55:34,954 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:55:34,955 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:55:34,955 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:55:34,955 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:55:34,956 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:55:34,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:55:34,958 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:55:34,959 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:55:34,959 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:55:34,960 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:55:34,960 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:55:34,961 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:55:34,961 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:55:34,961 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:55:34,962 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:55:34,962 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:55:34,963 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:55:34,963 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:55:34,963 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:55:34,964 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:55:34,964 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:55:34,964 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:55:34,965 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:55:34,965 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-08 11:55:34,972 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:55:34,972 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:55:34,973 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 11:55:34,973 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 11:55:34,973 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:55:34,973 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:55:34,973 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 11:55:34,973 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:55:34,973 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:55:34,973 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:55:34,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 11:55:34,974 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:55:34,974 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 11:55:34,975 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 11:55:34,975 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:55:34,975 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:55:34,975 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 11:55:34,975 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-08 11:55:34,975 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:55:34,975 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 11:55:34,975 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 11:55:34,975 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_525c3568-273f-489a-a694-b7799a2ccd09/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-12-08 11:55:34,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:55:35,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:55:35,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:55:35,003 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:55:35,003 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:55:35,004 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-08 11:55:35,039 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data/9a8bf714b/ffcc5be6ca5c4bc78277d299ee4b089e/FLAGf1bf0ec69 [2018-12-08 11:55:35,391 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:55:35,391 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-08 11:55:35,395 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data/9a8bf714b/ffcc5be6ca5c4bc78277d299ee4b089e/FLAGf1bf0ec69 [2018-12-08 11:55:35,774 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/data/9a8bf714b/ffcc5be6ca5c4bc78277d299ee4b089e [2018-12-08 11:55:35,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:55:35,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:55:35,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:55:35,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:55:35,779 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:55:35,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45734aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35, skipping insertion in model container [2018-12-08 11:55:35,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:55:35,794 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:55:35,889 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:55:35,892 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:55:35,909 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:55:35,923 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:55:35,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35 WrapperNode [2018-12-08 11:55:35,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:55:35,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:55:35,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:55:35,924 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:55:35,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:55:35,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:55:35,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:55:35,941 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:55:35,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... [2018-12-08 11:55:35,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:55:35,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:55:35,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:55:35,961 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:55:35,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/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 [2018-12-08 11:55:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 11:55:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 11:55:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-08 11:55:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-08 11:55:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-08 11:55:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 11:55:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 11:55:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:55:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 11:55:36,022 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-08 11:55:36,022 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-08 11:55:36,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:55:36,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:55:36,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-08 11:55:36,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 11:55:36,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 11:55:36,138 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 11:55:36,421 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:55:36,422 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 11:55:36,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:55:36 BoogieIcfgContainer [2018-12-08 11:55:36,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:55:36,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 11:55:36,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 11:55:36,424 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 11:55:36,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 11:55:35" (1/3) ... [2018-12-08 11:55:36,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3399e895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:55:36, skipping insertion in model container [2018-12-08 11:55:36,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:55:35" (2/3) ... [2018-12-08 11:55:36,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3399e895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 11:55:36, skipping insertion in model container [2018-12-08 11:55:36,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:55:36" (3/3) ... [2018-12-08 11:55:36,426 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-12-08 11:55:36,431 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 11:55:36,435 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 11:55:36,444 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 11:55:36,460 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 11:55:36,461 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 11:55:36,461 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 11:55:36,461 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 11:55:36,461 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 11:55:36,461 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 11:55:36,461 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 11:55:36,461 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 11:55:36,461 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 11:55:36,471 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-08 11:55:36,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 11:55:36,474 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:55:36,474 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] [2018-12-08 11:55:36,476 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:55:36,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:55:36,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1109789349, now seen corresponding path program 1 times [2018-12-08 11:55:36,481 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 11:55:36,482 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/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 [2018-12-08 11:55:36,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:55:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:55:36,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:55:36,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:55:36,545 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 11:55:36,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:55:36,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 11:55:36,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 11:55:36,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 11:55:36,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:55:36,564 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-12-08 11:55:36,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:55:36,576 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-12-08 11:55:36,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 11:55:36,578 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-08 11:55:36,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:55:36,585 INFO L225 Difference]: With dead ends: 68 [2018-12-08 11:55:36,585 INFO L226 Difference]: Without dead ends: 34 [2018-12-08 11:55:36,587 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 11:55:36,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-08 11:55:36,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-08 11:55:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-08 11:55:36,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-12-08 11:55:36,610 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-12-08 11:55:36,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:55:36,610 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-12-08 11:55:36,610 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 11:55:36,610 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-12-08 11:55:36,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 11:55:36,610 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:55:36,611 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] [2018-12-08 11:55:36,611 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:55:36,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:55:36,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1743788968, now seen corresponding path program 1 times [2018-12-08 11:55:36,612 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 11:55:36,612 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/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 [2018-12-08 11:55:36,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:55:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:55:36,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:55:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:55:37,000 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 11:55:37,007 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:55:37,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 11:55:37,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 11:55:37,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 11:55:37,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-08 11:55:37,008 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-12-08 11:55:37,372 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-08 11:55:38,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:55:38,321 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-12-08 11:55:38,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 11:55:38,322 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-08 11:55:38,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:55:38,323 INFO L225 Difference]: With dead ends: 43 [2018-12-08 11:55:38,323 INFO L226 Difference]: Without dead ends: 36 [2018-12-08 11:55:38,324 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-08 11:55:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-08 11:55:38,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-12-08 11:55:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-08 11:55:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-12-08 11:55:38,330 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-12-08 11:55:38,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:55:38,330 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-12-08 11:55:38,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 11:55:38,330 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-12-08 11:55:38,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 11:55:38,331 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:55:38,331 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] [2018-12-08 11:55:38,331 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:55:38,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:55:38,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1547275463, now seen corresponding path program 1 times [2018-12-08 11:55:38,332 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 11:55:38,332 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/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 [2018-12-08 11:55:38,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:55:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:55:38,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:55:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:55:38,442 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 11:55:38,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:55:38,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-08 11:55:38,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 11:55:38,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 11:55:38,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-08 11:55:38,451 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-12-08 11:55:38,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:55:38,865 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-12-08 11:55:38,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 11:55:38,866 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-08 11:55:38,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:55:38,867 INFO L225 Difference]: With dead ends: 41 [2018-12-08 11:55:38,867 INFO L226 Difference]: Without dead ends: 33 [2018-12-08 11:55:38,867 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-08 11:55:38,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-08 11:55:38,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-08 11:55:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-08 11:55:38,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-12-08 11:55:38,870 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-12-08 11:55:38,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:55:38,870 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-12-08 11:55:38,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 11:55:38,870 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-12-08 11:55:38,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-08 11:55:38,870 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 11:55:38,871 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 11:55:38,871 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 11:55:38,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:55:38,871 INFO L82 PathProgramCache]: Analyzing trace with hash -136677178, now seen corresponding path program 1 times [2018-12-08 11:55:38,871 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 11:55:38,871 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/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 [2018-12-08 11:55:38,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 11:55:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:55:38,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 11:55:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:55:38,995 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 11:55:39,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 11:55:39,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 11:55:39,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 11:55:39,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 11:55:39,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 11:55:39,003 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-12-08 11:55:39,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 11:55:39,478 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-12-08 11:55:39,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 11:55:39,479 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-08 11:55:39,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 11:55:39,479 INFO L225 Difference]: With dead ends: 39 [2018-12-08 11:55:39,479 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 11:55:39,479 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-08 11:55:39,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 11:55:39,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 11:55:39,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 11:55:39,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 11:55:39,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-08 11:55:39,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 11:55:39,480 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 11:55:39,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 11:55:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 11:55:39,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 11:55:39,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 11:55:39,532 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-12-08 11:55:39,532 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-12-08 11:55:39,532 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-12-08 11:55:39,532 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 11:55:39,532 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 11:55:39,532 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 11:55:39,532 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-12-08 11:55:39,532 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point floor_floatEXIT(lines 14 55) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point floor_floatFINAL(lines 14 55) no Hoare annotation was computed. [2018-12-08 11:55:39,533 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-12-08 11:55:39,534 INFO L451 ceAbstractionStarter]: At program point floor_floatENTRY(lines 14 55) the Hoare annotation is: true [2018-12-08 11:55:39,534 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-12-08 11:55:39,534 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 11:55:39,534 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 11:55:39,534 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 11:55:39,534 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 11:55:39,534 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2018-12-08 11:55:39,534 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 60 76) the Hoare annotation is: true [2018-12-08 11:55:39,534 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 60 76) no Hoare annotation was computed. [2018-12-08 11:55:39,534 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 60 76) no Hoare annotation was computed. [2018-12-08 11:55:39,534 INFO L448 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-12-08 11:55:39,534 INFO L444 ceAbstractionStarter]: At program point L70(line 70) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-12-08 11:55:39,534 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 70 73) no Hoare annotation was computed. [2018-12-08 11:55:39,535 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-08 11:55:39,535 INFO L448 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-12-08 11:55:39,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 11:55:39 BoogieIcfgContainer [2018-12-08 11:55:39,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 11:55:39,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 11:55:39,542 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 11:55:39,542 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 11:55:39,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:55:36" (3/4) ... [2018-12-08 11:55:39,545 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 11:55:39,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-08 11:55:39,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 11:55:39,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-12-08 11:55:39,549 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 11:55:39,552 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-08 11:55:39,552 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-08 11:55:39,552 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 11:55:39,568 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-08 11:55:39,581 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_525c3568-273f-489a-a694-b7799a2ccd09/bin-2019/uautomizer/witness.graphml [2018-12-08 11:55:39,581 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 11:55:39,582 INFO L168 Benchmark]: Toolchain (without parser) took 3805.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 943.4 MB in the beginning and 931.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 139.9 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:39,582 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-12-08 11:55:39,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.22 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:39,582 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.98 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:39,583 INFO L168 Benchmark]: Boogie Preprocessor took 20.45 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:55:39,583 INFO L168 Benchmark]: RCFGBuilder took 461.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:39,583 INFO L168 Benchmark]: TraceAbstraction took 3119.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.6 MB in the end (delta: 152.2 MB). Peak memory consumption was 152.2 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:39,583 INFO L168 Benchmark]: Witness Printer took 38.94 ms. Allocated memory is still 1.2 GB. Free memory was 938.6 MB in the beginning and 931.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-08 11:55:39,585 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.22 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 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 15.98 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.45 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 461.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3119.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.6 MB in the end (delta: 152.2 MB). Peak memory consumption was 152.2 MB. Max. memory is 11.5 GB. * Witness Printer took 38.94 ms. Allocated memory is still 1.2 GB. Free memory was 938.6 MB in the beginning and 931.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 108 SDslu, 423 SDs, 0 SdLazy, 221 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 13 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...