./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0730a.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_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/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 3efba836fbeb3ba7aa9b8335c699a7990ba5f7a9 ................................................................................................................................................................................................................................................................................................. 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_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/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 3efba836fbeb3ba7aa9b8335c699a7990ba5f7a9 .............................................................................................................................................................................................................................................................................................................. 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 18:55:51,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:55:51,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:55:51,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:55:51,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:55:51,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:55:51,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:55:51,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:55:51,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:55:51,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:55:51,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:55:51,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:55:51,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:55:51,220 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:55:51,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:55:51,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:55:51,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:55:51,223 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:55:51,224 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:55:51,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:55:51,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:55:51,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:55:51,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:55:51,229 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:55:51,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:55:51,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:55:51,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:55:51,231 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:55:51,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:55:51,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:55:51,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:55:51,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:55:51,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:55:51,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:55:51,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:55:51,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:55:51,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:55:51,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:55:51,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:55:51,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:55:51,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:55:51,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 18:55:51,245 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:55:51,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:55:51,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:55:51,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:55:51,246 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:55:51,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:55:51,246 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:55:51,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:55:51,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:55:51,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:55:51,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:55:51,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:55:51,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:55:51,247 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:55:51,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:55:51,247 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:55:51,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:55:51,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:55:51,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:55:51,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:55:51,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:55:51,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:55:51,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:55:51,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:55:51,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:55:51,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:55:51,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 18:55:51,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:55:51,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:55:51,249 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_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/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 -> 3efba836fbeb3ba7aa9b8335c699a7990ba5f7a9 [2019-12-07 18:55:51,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:55:51,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:55:51,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:55:51,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:55:51,363 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:55:51,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2019-12-07 18:55:51,403 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data/45af12054/b0e25b71a89e4f349b8af7192c1e5c71/FLAG40162e3b2 [2019-12-07 18:55:51,833 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:55:51,833 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2019-12-07 18:55:51,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data/45af12054/b0e25b71a89e4f349b8af7192c1e5c71/FLAG40162e3b2 [2019-12-07 18:55:51,847 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data/45af12054/b0e25b71a89e4f349b8af7192c1e5c71 [2019-12-07 18:55:51,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:55:51,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:55:51,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:55:51,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:55:51,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:55:51,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:55:51" (1/1) ... [2019-12-07 18:55:51,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@606df9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:51, skipping insertion in model container [2019-12-07 18:55:51,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:55:51" (1/1) ... [2019-12-07 18:55:51,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:55:51,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:55:52,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:55:52,031 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:55:52,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:55:52,072 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:55:52,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52 WrapperNode [2019-12-07 18:55:52,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:55:52,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:55:52,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:55:52,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:55:52,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:55:52,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:55:52,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:55:52,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:55:52,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... [2019-12-07 18:55:52,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:55:52,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:55:52,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:55:52,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:55:52,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/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 18:55:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:55:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-12-07 18:55:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 18:55:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-12-07 18:55:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:55:52,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:55:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 18:55:52,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:55:52,452 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:55:52,452 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 18:55:52,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:52 BoogieIcfgContainer [2019-12-07 18:55:52,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:55:52,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:55:52,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:55:52,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:55:52,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:55:51" (1/3) ... [2019-12-07 18:55:52,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642bafaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:55:52, skipping insertion in model container [2019-12-07 18:55:52,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:52" (2/3) ... [2019-12-07 18:55:52,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@642bafaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:55:52, skipping insertion in model container [2019-12-07 18:55:52,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:52" (3/3) ... [2019-12-07 18:55:52,457 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730a.c [2019-12-07 18:55:52,463 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:55:52,467 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:55:52,474 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:55:52,489 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:55:52,489 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:55:52,489 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:55:52,489 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:55:52,489 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:55:52,490 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:55:52,490 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:55:52,490 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:55:52,500 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-12-07 18:55:52,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:55:52,503 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:55:52,504 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:52,504 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:55:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:52,507 INFO L82 PathProgramCache]: Analyzing trace with hash -898135563, now seen corresponding path program 1 times [2019-12-07 18:55:52,513 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:52,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996342226] [2019-12-07 18:55:52,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:52,587 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 18:55:52,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996342226] [2019-12-07 18:55:52,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:55:52,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 18:55:52,589 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044638873] [2019-12-07 18:55:52,591 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:55:52,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:55:52,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:55:52,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:55:52,601 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-12-07 18:55:52,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:55:52,615 INFO L93 Difference]: Finished difference Result 102 states and 162 transitions. [2019-12-07 18:55:52,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:55:52,616 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:55:52,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:55:52,623 INFO L225 Difference]: With dead ends: 102 [2019-12-07 18:55:52,623 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 18:55:52,625 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 18:55:52,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 18:55:52,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-12-07 18:55:52,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-12-07 18:55:52,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2019-12-07 18:55:52,649 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 10 [2019-12-07 18:55:52,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:55:52,650 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2019-12-07 18:55:52,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:55:52,650 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2019-12-07 18:55:52,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:55:52,650 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:55:52,651 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:52,651 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:55:52,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:52,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1657561708, now seen corresponding path program 1 times [2019-12-07 18:55:52,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:55:52,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218027882] [2019-12-07 18:55:52,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:55:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:52,752 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:55:52,752 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:55:52,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:55:52 BoogieIcfgContainer [2019-12-07 18:55:52,773 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:55:52,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:55:52,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:55:52,774 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:55:52,774 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:52" (3/4) ... [2019-12-07 18:55:52,777 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 18:55:52,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:55:52,778 INFO L168 Benchmark]: Toolchain (without parser) took 928.43 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 940.8 MB in the beginning and 1.0 GB in the end (delta: -75.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:52,779 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:55:52,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:52,779 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:55:52,780 INFO L168 Benchmark]: Boogie Preprocessor took 24.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:55:52,780 INFO L168 Benchmark]: RCFGBuilder took 322.52 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: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:52,780 INFO L168 Benchmark]: TraceAbstraction took 319.93 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:55:52,781 INFO L168 Benchmark]: Witness Printer took 3.24 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. [2019-12-07 18:55:52,783 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 322.52 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: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 319.93 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: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.24 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: 160]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 142, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of bitwiseAnd at line 141. Possible FailurePath: [L20] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L155] double x = 1.0 / 0.0; [L23] double z; [L24] __int32_t sign = 0x80000000; [L25] __uint32_t r, t1, s1, ix1, q1; [L26] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (ix0) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (ix1) = ew_u.parts.lsw [L35] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L36] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L156] double res = __ieee754_sqrt(x); [L134] __int32_t hx, lx; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L136] ieee_double_shape_type ew_u; [L137] ew_u.value = (x) [L138] EXPR ew_u.parts.msw [L138] (hx) = ew_u.parts.msw [L139] EXPR ew_u.parts.lsw [L139] (lx) = ew_u.parts.lsw [L141] hx &= 0x7fffffff [L142] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L143] hx = 0x7ff00000 - hx [L144] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L159] COND TRUE !isinf_double(res) [L160] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 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=52occurred 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 18:55:54,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:55:54,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:55:54,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:55:54,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:55:54,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:55:54,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:55:54,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:55:54,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:55:54,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:55:54,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:55:54,183 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:55:54,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:55:54,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:55:54,185 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:55:54,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:55:54,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:55:54,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:55:54,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:55:54,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:55:54,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:55:54,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:55:54,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:55:54,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:55:54,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:55:54,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:55:54,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:55:54,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:55:54,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:55:54,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:55:54,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:55:54,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:55:54,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:55:54,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:55:54,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:55:54,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:55:54,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:55:54,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:55:54,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:55:54,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:55:54,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:55:54,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 18:55:54,217 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:55:54,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:55:54,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:55:54,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:55:54,219 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:55:54,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:55:54,219 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:55:54,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:55:54,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:55:54,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 18:55:54,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 18:55:54,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 18:55:54,220 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 18:55:54,220 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 18:55:54,220 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:55:54,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:55:54,221 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:55:54,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 18:55:54,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:55:54,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:55:54,221 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 18:55:54,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 18:55:54,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 18:55:54,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:55:54,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 18:55:54,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 18:55:54,222 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 18:55:54,222 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 18:55:54,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 18:55:54,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:55:54,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 18:55:54,223 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_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/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 -> 3efba836fbeb3ba7aa9b8335c699a7990ba5f7a9 [2019-12-07 18:55:54,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:55:54,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:55:54,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:55:54,400 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:55:54,401 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:55:54,401 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2019-12-07 18:55:54,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data/6a2d6b835/f7746e67b0044f688416a0f9975025b5/FLAG81ceea33d [2019-12-07 18:55:54,787 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:55:54,787 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2019-12-07 18:55:54,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data/6a2d6b835/f7746e67b0044f688416a0f9975025b5/FLAG81ceea33d [2019-12-07 18:55:54,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/data/6a2d6b835/f7746e67b0044f688416a0f9975025b5 [2019-12-07 18:55:54,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:55:54,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:55:54,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:55:54,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:55:54,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:55:54,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:55:54" (1/1) ... [2019-12-07 18:55:54,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60739eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:54, skipping insertion in model container [2019-12-07 18:55:54,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:55:54" (1/1) ... [2019-12-07 18:55:54,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:55:54,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:55:54,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:55:54,966 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:55:55,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:55:55,054 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:55:55,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55 WrapperNode [2019-12-07 18:55:55,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:55:55,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:55:55,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:55:55,055 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:55:55,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,087 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:55:55,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:55:55,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:55:55,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:55:55,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... [2019-12-07 18:55:55,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:55:55,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:55:55,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:55:55,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:55:55,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/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 18:55:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-12-07 18:55:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-12-07 18:55:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 18:55:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-12-07 18:55:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:55:55,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:55:55,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-12-07 18:55:55,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 18:55:58,343 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:55:58,343 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-07 18:55:58,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:58 BoogieIcfgContainer [2019-12-07 18:55:58,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:55:58,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 18:55:58,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 18:55:58,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 18:55:58,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 06:55:54" (1/3) ... [2019-12-07 18:55:58,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9550a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:55:58, skipping insertion in model container [2019-12-07 18:55:58,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:55:55" (2/3) ... [2019-12-07 18:55:58,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9550a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 06:55:58, skipping insertion in model container [2019-12-07 18:55:58,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:58" (3/3) ... [2019-12-07 18:55:58,349 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730a.c [2019-12-07 18:55:58,355 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 18:55:58,360 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 18:55:58,367 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 18:55:58,382 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 18:55:58,382 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 18:55:58,382 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 18:55:58,383 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:55:58,383 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:55:58,383 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 18:55:58,383 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:55:58,383 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 18:55:58,393 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2019-12-07 18:55:58,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 18:55:58,396 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:55:58,397 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:58,397 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:55:58,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:58,401 INFO L82 PathProgramCache]: Analyzing trace with hash -898135563, now seen corresponding path program 1 times [2019-12-07 18:55:58,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:55:58,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665486374] [2019-12-07 18:55:58,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/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 18:55:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:55:58,727 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 18:55:58,731 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 18:55:58,741 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 18:55:58,741 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 18:55:58,743 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 18:55:58,744 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665486374] [2019-12-07 18:55:58,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:55:58,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 18:55:58,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901343850] [2019-12-07 18:55:58,747 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 18:55:58,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-12-07 18:55:58,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 18:55:58,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:55:58,758 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-12-07 18:55:58,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:55:58,772 INFO L93 Difference]: Finished difference Result 102 states and 162 transitions. [2019-12-07 18:55:58,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 18:55:58,773 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-12-07 18:55:58,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 18:55:58,780 INFO L225 Difference]: With dead ends: 102 [2019-12-07 18:55:58,780 INFO L226 Difference]: Without dead ends: 49 [2019-12-07 18:55:58,783 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 18:55:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-12-07 18:55:58,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-12-07 18:55:58,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-12-07 18:55:58,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 68 transitions. [2019-12-07 18:55:58,807 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 68 transitions. Word has length 10 [2019-12-07 18:55:58,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 18:55:58,807 INFO L462 AbstractCegarLoop]: Abstraction has 49 states and 68 transitions. [2019-12-07 18:55:58,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 18:55:58,808 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 68 transitions. [2019-12-07 18:55:58,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 18:55:58,808 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 18:55:58,808 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 18:55:59,009 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 18:55:59,009 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 18:55:59,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:55:59,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1657561708, now seen corresponding path program 1 times [2019-12-07 18:55:59,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 18:55:59,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2072829207] [2019-12-07 18:55:59,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/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 18:55:59,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:55:59,823 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 18:55:59,823 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 18:56:00,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 18:56:00,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 06:56:00 BoogieIcfgContainer [2019-12-07 18:56:00,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 18:56:00,060 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:56:00,060 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:56:00,060 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:56:00,060 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:55:58" (3/4) ... [2019-12-07 18:56:00,062 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 18:56:00,104 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6cbb04c8-eee1-4b92-a669-3c1e118ff8fe/bin/uautomizer/witness.graphml [2019-12-07 18:56:00,105 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:56:00,106 INFO L168 Benchmark]: Toolchain (without parser) took 5298.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.4 MB in the beginning and 1.0 GB in the end (delta: -68.3 MB). Peak memory consumption was 68.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:00,107 INFO L168 Benchmark]: CDTParser took 0.13 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 18:56:00,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:00,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.56 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 18:56:00,108 INFO L168 Benchmark]: Boogie Preprocessor took 27.71 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:00,108 INFO L168 Benchmark]: RCFGBuilder took 3228.83 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:00,109 INFO L168 Benchmark]: TraceAbstraction took 1714.58 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: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. [2019-12-07 18:56:00,109 INFO L168 Benchmark]: Witness Printer took 45.15 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 18:56:00,111 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 245.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.56 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 27.71 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3228.83 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1714.58 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: 51.8 MB). Peak memory consumption was 51.8 MB. Max. memory is 11.5 GB. * Witness Printer took 45.15 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: 160]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L20] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L155] double x = 1.0 / 0.0; [L23] double z; [L24] __int32_t sign = 0x80000000; [L25] __uint32_t r, t1, s1, ix1, q1; [L26] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (ix0) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (ix1) = ew_u.parts.lsw [L35] COND TRUE (ix0 & 0x7ff00000) == 0x7ff00000 [L36] return x * x + x; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L156] double res = __ieee754_sqrt(x); [L134] __int32_t hx, lx; VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L136] ieee_double_shape_type ew_u; [L137] ew_u.value = (x) [L138] EXPR ew_u.parts.msw [L138] (hx) = ew_u.parts.msw [L139] EXPR ew_u.parts.lsw [L139] (lx) = ew_u.parts.lsw [L141] hx &= 0x7fffffff [L142] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L143] hx = 0x7ff00000 - hx [L144] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] [L159] COND TRUE !isinf_double(res) [L160] __VERIFIER_error() VAL [one_sqrt=1.0, tiny_sqrt=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 25 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...