./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/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 aa2086ab05aa915f1fa31296bc02fdb3a78fa087 .................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/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 aa2086ab05aa915f1fa31296bc02fdb3a78fa087 .................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 15:10:41,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:10:41,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:10:41,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:10:41,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:10:41,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:10:41,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:10:41,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:10:41,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:10:41,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:10:41,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:10:41,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:10:41,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:10:41,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:10:41,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:10:41,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:10:41,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:10:41,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:10:41,276 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:10:41,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:10:41,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:10:41,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:10:41,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:10:41,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:10:41,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:10:41,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:10:41,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:10:41,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:10:41,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:10:41,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:10:41,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:10:41,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:10:41,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:10:41,284 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:10:41,285 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:10:41,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:10:41,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:10:41,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:10:41,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:10:41,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:10:41,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:10:41,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 15:10:41,297 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:10:41,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:10:41,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:10:41,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:10:41,298 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:10:41,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:10:41,298 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:10:41,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:10:41,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:10:41,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:10:41,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:10:41,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:10:41,299 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:10:41,299 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:10:41,299 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:10:41,299 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:10:41,299 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:10:41,300 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:10:41,300 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:10:41,300 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:10:41,300 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:10:41,300 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:10:41,300 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:10:41,300 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:10:41,300 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:10:41,300 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:10:41,301 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 15:10:41,301 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:10:41,301 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:10:41,301 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/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 -> aa2086ab05aa915f1fa31296bc02fdb3a78fa087 [2019-12-07 15:10:41,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:10:41,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:10:41,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:10:41,410 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:10:41,411 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:10:41,411 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2019-12-07 15:10:41,451 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data/45501e089/d9c848d6556449e4b035352728e04f7e/FLAG38b8358d5 [2019-12-07 15:10:41,874 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:10:41,874 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2019-12-07 15:10:41,880 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data/45501e089/d9c848d6556449e4b035352728e04f7e/FLAG38b8358d5 [2019-12-07 15:10:41,890 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data/45501e089/d9c848d6556449e4b035352728e04f7e [2019-12-07 15:10:41,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:10:41,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:10:41,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:10:41,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:10:41,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:10:41,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:10:41" (1/1) ... [2019-12-07 15:10:41,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@161812df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:41, skipping insertion in model container [2019-12-07 15:10:41,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:10:41" (1/1) ... [2019-12-07 15:10:41,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:10:41,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:10:42,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:10:42,128 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:10:42,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:10:42,183 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:10:42,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42 WrapperNode [2019-12-07 15:10:42,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:10:42,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:10:42,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:10:42,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:10:42,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:10:42,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:10:42,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:10:42,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:10:42,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... [2019-12-07 15:10:42,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:10:42,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:10:42,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:10:42,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:10:42,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/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 [2019-12-07 15:10:42,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:10:42,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:10:42,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 15:10:42,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 15:10:42,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:10:42,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:10:42,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:10:42,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-12-07 15:10:42,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:10:42,578 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:10:42,578 INFO L287 CfgBuilder]: Removed 24 assume(true) statements. [2019-12-07 15:10:42,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:10:42 BoogieIcfgContainer [2019-12-07 15:10:42,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:10:42,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:10:42,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:10:42,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:10:42,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:10:41" (1/3) ... [2019-12-07 15:10:42,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2ea7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:10:42, skipping insertion in model container [2019-12-07 15:10:42,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:42" (2/3) ... [2019-12-07 15:10:42,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e2ea7da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:10:42, skipping insertion in model container [2019-12-07 15:10:42,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:10:42" (3/3) ... [2019-12-07 15:10:42,586 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2019-12-07 15:10:42,594 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:10:42,600 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:10:42,609 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:10:42,624 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:10:42,624 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:10:42,624 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:10:42,624 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:10:42,624 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:10:42,624 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:10:42,625 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:10:42,625 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:10:42,635 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2019-12-07 15:10:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:10:42,639 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:10:42,639 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:10:42,639 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:10:42,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:10:42,643 INFO L82 PathProgramCache]: Analyzing trace with hash 464220005, now seen corresponding path program 1 times [2019-12-07 15:10:42,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:10:42,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562888834] [2019-12-07 15:10:42,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:10:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:10:42,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:10:42,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562888834] [2019-12-07 15:10:42,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:10:42,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 15:10:42,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770967749] [2019-12-07 15:10:42,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:10:42,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 15:10:42,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:10:42,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:10:42,742 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2019-12-07 15:10:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:10:42,758 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2019-12-07 15:10:42,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:10:42,758 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 15:10:42,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:10:42,765 INFO L225 Difference]: With dead ends: 119 [2019-12-07 15:10:42,766 INFO L226 Difference]: Without dead ends: 57 [2019-12-07 15:10:42,768 INFO L630 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 [2019-12-07 15:10:42,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-12-07 15:10:42,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-12-07 15:10:42,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-12-07 15:10:42,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2019-12-07 15:10:42,792 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 11 [2019-12-07 15:10:42,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:10:42,793 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2019-12-07 15:10:42,793 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:10:42,793 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2019-12-07 15:10:42,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:10:42,793 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:10:42,793 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:10:42,793 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:10:42,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:10:42,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1051323842, now seen corresponding path program 1 times [2019-12-07 15:10:42,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:10:42,794 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576181565] [2019-12-07 15:10:42,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:10:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:10:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:10:42,876 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:10:42,877 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:10:42,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:10:42 BoogieIcfgContainer [2019-12-07 15:10:42,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:10:42,898 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:10:42,898 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:10:42,898 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:10:42,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:10:42" (3/4) ... [2019-12-07 15:10:42,901 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:10:42,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:10:42,903 INFO L168 Benchmark]: Toolchain (without parser) took 1009.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -116.9 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:42,903 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:10:42,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:42,904 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:10:42,904 INFO L168 Benchmark]: Boogie Preprocessor took 27.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:10:42,904 INFO L168 Benchmark]: RCFGBuilder took 334.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:42,905 INFO L168 Benchmark]: TraceAbstraction took 317.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:42,905 INFO L168 Benchmark]: Witness Printer took 2.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:10:42,907 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -189.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.31 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 334.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 317.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 191]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 44, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of bitwiseAnd at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 45, overapproximation of someBinaryDOUBLEComparisonOperation at line 190, overapproximation of bitwiseXor at line 40. Possible FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={3:0}] [L182] double x = 0.0; [L183] double y = __VERIFIER_nondet_double(); [L185] COND TRUE y < 0.0 || y > 0.0 [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={3:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={3:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={3:0}] [L187] double res = fmod_double(x, y); [L190] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1, Zero_fmod={3:0}] [L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L191] __VERIFIER_error() VAL [one_fmod=1, Zero_fmod={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 89 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=61occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.25-f470102 [2019-12-07 15:10:44,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:10:44,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:10:44,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:10:44,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:10:44,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:10:44,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:10:44,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:10:44,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:10:44,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:10:44,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:10:44,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:10:44,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:10:44,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:10:44,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:10:44,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:10:44,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:10:44,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:10:44,319 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:10:44,321 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:10:44,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:10:44,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:10:44,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:10:44,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:10:44,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:10:44,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:10:44,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:10:44,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:10:44,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:10:44,328 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:10:44,328 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:10:44,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:10:44,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:10:44,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:10:44,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:10:44,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:10:44,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:10:44,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:10:44,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:10:44,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:10:44,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:10:44,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 15:10:44,342 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:10:44,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:10:44,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:10:44,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:10:44,344 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:10:44,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:10:44,344 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 15:10:44,344 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 15:10:44,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:10:44,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 15:10:44,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 15:10:44,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 15:10:44,345 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 15:10:44,345 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 15:10:44,345 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 15:10:44,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:10:44,345 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:10:44,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 15:10:44,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:10:44,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:10:44,346 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 15:10:44,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 15:10:44,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 15:10:44,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:10:44,346 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 15:10:44,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 15:10:44,347 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 15:10:44,347 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 15:10:44,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 15:10:44,347 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:10:44,347 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 15:10:44,347 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/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 -> aa2086ab05aa915f1fa31296bc02fdb3a78fa087 [2019-12-07 15:10:44,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:10:44,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:10:44,523 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:10:44,525 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:10:44,525 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:10:44,526 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2019-12-07 15:10:44,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data/d39e3efce/47a1dc887b8845b9b4e12123ee230e21/FLAG38ba14585 [2019-12-07 15:10:45,055 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:10:45,056 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2019-12-07 15:10:45,061 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data/d39e3efce/47a1dc887b8845b9b4e12123ee230e21/FLAG38ba14585 [2019-12-07 15:10:45,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/data/d39e3efce/47a1dc887b8845b9b4e12123ee230e21 [2019-12-07 15:10:45,072 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:10:45,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:10:45,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:10:45,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:10:45,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:10:45,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc1e395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45, skipping insertion in model container [2019-12-07 15:10:45,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:10:45,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:10:45,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:10:45,240 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:10:45,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:10:45,321 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:10:45,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45 WrapperNode [2019-12-07 15:10:45,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:10:45,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:10:45,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:10:45,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:10:45,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:10:45,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:10:45,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:10:45,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:10:45,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... [2019-12-07 15:10:45,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:10:45,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:10:45,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:10:45,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:10:45,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/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 [2019-12-07 15:10:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 15:10:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 15:10:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:10:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-12-07 15:10:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 15:10:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:10:45,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:10:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 15:10:45,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:10:48,706 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:10:48,706 INFO L287 CfgBuilder]: Removed 24 assume(true) statements. [2019-12-07 15:10:48,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:10:48 BoogieIcfgContainer [2019-12-07 15:10:48,707 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:10:48,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 15:10:48,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 15:10:48,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 15:10:48,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 03:10:45" (1/3) ... [2019-12-07 15:10:48,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfdbe39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:10:48, skipping insertion in model container [2019-12-07 15:10:48,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:10:45" (2/3) ... [2019-12-07 15:10:48,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfdbe39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 03:10:48, skipping insertion in model container [2019-12-07 15:10:48,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:10:48" (3/3) ... [2019-12-07 15:10:48,712 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2019-12-07 15:10:48,719 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 15:10:48,724 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 15:10:48,732 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 15:10:48,749 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 15:10:48,749 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 15:10:48,749 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 15:10:48,749 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:10:48,749 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:10:48,749 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 15:10:48,749 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:10:48,750 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 15:10:48,759 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2019-12-07 15:10:48,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 15:10:48,763 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:10:48,763 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:10:48,763 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:10:48,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:10:48,767 INFO L82 PathProgramCache]: Analyzing trace with hash 464220005, now seen corresponding path program 1 times [2019-12-07 15:10:48,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:10:48,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893355761] [2019-12-07 15:10:48,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/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 [2019-12-07 15:10:49,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:10:49,612 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 15:10:49,616 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:10:49,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:10:49,628 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 15:10:49,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:10:49,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893355761] [2019-12-07 15:10:49,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 15:10:49,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 15:10:49,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710178771] [2019-12-07 15:10:49,636 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 15:10:49,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 15:10:49,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 15:10:49,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 15:10:49,648 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2019-12-07 15:10:49,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 15:10:49,664 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2019-12-07 15:10:49,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 15:10:49,666 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-12-07 15:10:49,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 15:10:49,673 INFO L225 Difference]: With dead ends: 119 [2019-12-07 15:10:49,673 INFO L226 Difference]: Without dead ends: 57 [2019-12-07 15:10:49,675 INFO L630 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 [2019-12-07 15:10:49,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2019-12-07 15:10:49,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2019-12-07 15:10:49,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2019-12-07 15:10:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2019-12-07 15:10:49,700 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 11 [2019-12-07 15:10:49,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 15:10:49,700 INFO L462 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2019-12-07 15:10:49,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 15:10:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2019-12-07 15:10:49,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 15:10:49,701 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 15:10:49,701 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 15:10:49,901 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 15:10:49,902 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 15:10:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:10:49,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1051323842, now seen corresponding path program 1 times [2019-12-07 15:10:49,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 15:10:49,905 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1240322173] [2019-12-07 15:10:49,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/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 [2019-12-07 15:10:50,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:10:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:10:52,030 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 15:10:52,030 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 15:10:52,232 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 15:10:52,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 03:10:52 BoogieIcfgContainer [2019-12-07 15:10:52,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 15:10:52,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:10:52,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:10:52,263 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:10:52,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:10:48" (3/4) ... [2019-12-07 15:10:52,265 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 15:10:52,300 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_816df060-0e98-4f2c-922a-f7b6434a8ae3/bin/uautomizer/witness.graphml [2019-12-07 15:10:52,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:10:52,302 INFO L168 Benchmark]: Toolchain (without parser) took 7229.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -49.3 MB). Peak memory consumption was 75.0 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:52,302 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:10:52,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:52,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:52,303 INFO L168 Benchmark]: Boogie Preprocessor took 30.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:10:52,303 INFO L168 Benchmark]: RCFGBuilder took 3318.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:52,304 INFO L168 Benchmark]: TraceAbstraction took 3554.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 11.5 GB. [2019-12-07 15:10:52,304 INFO L168 Benchmark]: Witness Printer took 37.93 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:10:52,305 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -161.1 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 3318.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 47.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3554.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 11.5 GB. * Witness Printer took 37.93 ms. Allocated memory is still 1.2 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: - CounterExampleResult [Line: 191]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L18-L21] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L182] double x = 0.0; [L183] double y = __VERIFIER_nondet_double(); [L185] COND TRUE y < 0.0 || y > 0.0 [L24] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L25] __uint32_t lx, ly, lz; VAL [one_fmod=1.0, Zero_fmod={2:0}] [L28] ieee_double_shape_type ew_u; [L29] ew_u.value = (x) [L30] EXPR ew_u.parts.msw [L30] (hx) = ew_u.parts.msw [L31] EXPR ew_u.parts.lsw [L31] (lx) = ew_u.parts.lsw [L34] ieee_double_shape_type ew_u; [L35] ew_u.value = (y) [L36] EXPR ew_u.parts.msw [L36] (hy) = ew_u.parts.msw [L37] EXPR ew_u.parts.lsw [L37] (ly) = ew_u.parts.lsw [L39] sx = hx & 0x80000000 [L40] hx ^= sx [L41] hy &= 0x7fffffff VAL [one_fmod=1.0, Zero_fmod={2:0}] [L43-L44] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L45] return (x * y) / (x * y); VAL [one_fmod=1.0, Zero_fmod={2:0}] [L187] double res = fmod_double(x, y); [L190] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1.0, Zero_fmod={2:0}] [L190] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L191] __VERIFIER_error() VAL [one_fmod=1.0, Zero_fmod={2:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 89 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...