./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/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 36fce2ac9d239f0bf9286aa317af7b50704c65b6 ........................................................................................................................................................................................................................................................................................................................................... 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/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/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 36fce2ac9d239f0bf9286aa317af7b50704c65b6 ............................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-10-22 08:57:14,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:14,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:14,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:57:14,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:57:14,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:57:14,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:57:14,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:57:14,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:57:14,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:57:14,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:57:14,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:57:14,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:57:14,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:57:14,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:57:14,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:57:14,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:57:14,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:57:14,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:57:14,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:57:14,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:57:14,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:57:14,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:57:14,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:57:14,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:57:14,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:57:14,325 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:57:14,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:57:14,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:57:14,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:57:14,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:14,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:14,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:14,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:14,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:14,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:14,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:14,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:14,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:14,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:14,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:14,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:57:14,344 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:14,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:14,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:14,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:14,346 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:14,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:14,346 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:14,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:57:14,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:14,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:14,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:14,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:14,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:14,348 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:14,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:14,348 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:14,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:14,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:14,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:14,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:14,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:14,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:14,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:14,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:14,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:14,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:57:14,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:57:14,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:14,350 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/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/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 -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 [2019-10-22 08:57:14,375 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:14,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:14,387 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:14,389 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:14,389 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:14,390 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-10-22 08:57:14,437 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data/4cc66b3d5/fb0e307056064a059c8b82403bd3d3ea/FLAG8d35290f4 [2019-10-22 08:57:14,821 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:14,821 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-10-22 08:57:14,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data/4cc66b3d5/fb0e307056064a059c8b82403bd3d3ea/FLAG8d35290f4 [2019-10-22 08:57:14,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data/4cc66b3d5/fb0e307056064a059c8b82403bd3d3ea [2019-10-22 08:57:14,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:14,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:14,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:14,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:14,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:14,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:14" (1/1) ... [2019-10-22 08:57:14,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd650f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:14, skipping insertion in model container [2019-10-22 08:57:14,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:14" (1/1) ... [2019-10-22 08:57:14,859 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:14,875 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:15,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:15,084 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:15,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:15,123 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:15,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15 WrapperNode [2019-10-22 08:57:15,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:15,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:15,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:15,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:15,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:15,163 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:15,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:15,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:15,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... [2019-10-22 08:57:15,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:15,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:15,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:15,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:15,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/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 [2019-10-22 08:57:15,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 08:57:15,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:57:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 08:57:15,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:15,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:57:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:15,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:15,658 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:15,659 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-10-22 08:57:15,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:15 BoogieIcfgContainer [2019-10-22 08:57:15,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:15,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:15,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:15,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:15,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:14" (1/3) ... [2019-10-22 08:57:15,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3293bad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:15, skipping insertion in model container [2019-10-22 08:57:15,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:15" (2/3) ... [2019-10-22 08:57:15,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3293bad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:15, skipping insertion in model container [2019-10-22 08:57:15,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:15" (3/3) ... [2019-10-22 08:57:15,668 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2019-10-22 08:57:15,678 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:15,685 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:15,696 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:15,719 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:15,719 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:15,719 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:15,719 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:15,719 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:15,720 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:15,720 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:15,720 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:15,734 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-10-22 08:57:15,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:57:15,741 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:15,742 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:15,744 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:15,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:15,753 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2019-10-22 08:57:15,761 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:15,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386130088] [2019-10-22 08:57:15,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,763 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:15,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:15,897 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386130088] [2019-10-22 08:57:15,898 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:15,898 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:57:15,898 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548326204] [2019-10-22 08:57:15,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:57:15,902 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:15,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:15,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:15,912 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-10-22 08:57:15,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:15,928 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-10-22 08:57:15,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:15,933 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-22 08:57:15,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:15,944 INFO L225 Difference]: With dead ends: 66 [2019-10-22 08:57:15,945 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 08:57:15,948 INFO L600 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 [2019-10-22 08:57:15,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 08:57:15,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 08:57:15,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 08:57:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-10-22 08:57:15,991 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2019-10-22 08:57:15,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:15,993 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-10-22 08:57:15,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:57:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-10-22 08:57:15,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:57:15,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:15,995 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:15,995 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:15,997 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2019-10-22 08:57:15,997 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:15,997 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869827415] [2019-10-22 08:57:15,997 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,997 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:15,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:16,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:16,059 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869827415] [2019-10-22 08:57:16,060 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:16,060 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:57:16,060 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705592650] [2019-10-22 08:57:16,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:16,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:57:16,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:16,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:16,062 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 3 states. [2019-10-22 08:57:16,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:16,078 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2019-10-22 08:57:16,078 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:16,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-22 08:57:16,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:16,079 INFO L225 Difference]: With dead ends: 34 [2019-10-22 08:57:16,079 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 08:57:16,080 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:16,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 08:57:16,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 08:57:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 08:57:16,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2019-10-22 08:57:16,084 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 15 [2019-10-22 08:57:16,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:16,085 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2019-10-22 08:57:16,085 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:16,085 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2019-10-22 08:57:16,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 08:57:16,085 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:16,086 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:16,086 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:16,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:16,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1761490312, now seen corresponding path program 1 times [2019-10-22 08:57:16,086 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:57:16,086 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907195792] [2019-10-22 08:57:16,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:16,087 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:57:16,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:57:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:16,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:16,188 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:57:16,189 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:16,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:16 BoogieIcfgContainer [2019-10-22 08:57:16,218 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:16,219 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:16,219 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:16,219 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:16,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:15" (3/4) ... [2019-10-22 08:57:16,223 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:57:16,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:16,225 INFO L168 Benchmark]: Toolchain (without parser) took 1385.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -124.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,225 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:16,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,226 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.80 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,227 INFO L168 Benchmark]: Boogie Preprocessor took 29.69 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. [2019-10-22 08:57:16,227 INFO L168 Benchmark]: RCFGBuilder took 466.91 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,228 INFO L168 Benchmark]: TraceAbstraction took 557.35 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:16,228 INFO L168 Benchmark]: Witness Printer took 4.28 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. [2019-10-22 08:57:16,231 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.80 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.69 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 466.91 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 557.35 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.28 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: 86]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryArithmeticFLOAToperation at line 80, overapproximation of bitwiseAnd at line 26. Possible FailurePath: [L11] static const float one_modf = 1.0; VAL [one_modf=1] [L80] float x = 0.0f / 0.0f; [L81] float iptr; [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [one_modf=1] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1] [L22] COND TRUE j0 < 23 VAL [one_modf=1] [L23] COND TRUE j0 < 0 VAL [one_modf=1] [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = (i0 & 0x80000000) [L27] EXPR sf_u.value [L27] (*iptr) = sf_u.value [L29] return x; VAL [one_modf=1] [L82] float res = modf_float(x, &iptr); [L85] EXPR \read(iptr) [L73] return x != x; VAL [one_modf=1] [L85] isnan_float(iptr) && !isnan_float(res) [L73] return x != x; VAL [one_modf=1] [L85] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [one_modf=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 0 SDslu, 28 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 08:57:18,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:57:18,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:57:18,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-22 08:57:18,469 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:57:18,470 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:57:18,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:57:18,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:57:18,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:57:18,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:57:18,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:57:18,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:57:18,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:57:18,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:57:18,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:57:18,477 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 08:57:18,495 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:57:18,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:57:18,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:57:18,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:57:18,505 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:57:18,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:57:18,505 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:57:18,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:57:18,505 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:57:18,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:57:18,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:57:18,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:57:18,506 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 08:57:18,506 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 08:57:18,506 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:57:18,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:57:18,507 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:57:18,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:57:18,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:57:18,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:57:18,507 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:57:18,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:57:18,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:57:18,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:57:18,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:57:18,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:57:18,508 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 08:57:18,508 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 08:57:18,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:57:18,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 08:57:18,509 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/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/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 -> 36fce2ac9d239f0bf9286aa317af7b50704c65b6 [2019-10-22 08:57:18,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:57:18,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:57:18,552 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:57:18,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:57:18,554 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:57:18,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-10-22 08:57:18,609 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data/a8206fb68/6c7310523b014ffebc33c1870e4ecf17/FLAG26209ffeb [2019-10-22 08:57:19,008 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:57:19,009 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2019-10-22 08:57:19,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data/a8206fb68/6c7310523b014ffebc33c1870e4ecf17/FLAG26209ffeb [2019-10-22 08:57:19,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/data/a8206fb68/6c7310523b014ffebc33c1870e4ecf17 [2019-10-22 08:57:19,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:57:19,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:57:19,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:19,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:57:19,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:57:19,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26bc0ff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19, skipping insertion in model container [2019-10-22 08:57:19,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,387 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:57:19,407 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:57:19,602 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:19,622 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:57:19,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:57:19,688 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:57:19,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19 WrapperNode [2019-10-22 08:57:19,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:57:19,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:19,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:57:19,690 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:57:19,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:57:19,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:57:19,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:57:19,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:57:19,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... [2019-10-22 08:57:19,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:57:19,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:57:19,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:57:19,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:57:19,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/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 [2019-10-22 08:57:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 08:57:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:57:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:57:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 08:57:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:57:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 08:57:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 08:57:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:57:20,347 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:57:20,347 INFO L284 CfgBuilder]: Removed 24 assume(true) statements. [2019-10-22 08:57:20,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:20 BoogieIcfgContainer [2019-10-22 08:57:20,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:57:20,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:57:20,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:57:20,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:57:20,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:57:19" (1/3) ... [2019-10-22 08:57:20,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75690e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:20, skipping insertion in model container [2019-10-22 08:57:20,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:57:19" (2/3) ... [2019-10-22 08:57:20,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75690e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:57:20, skipping insertion in model container [2019-10-22 08:57:20,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:20" (3/3) ... [2019-10-22 08:57:20,356 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2019-10-22 08:57:20,365 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:57:20,373 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:57:20,384 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:57:20,406 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:57:20,406 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:57:20,407 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:57:20,407 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:57:20,407 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:57:20,407 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:57:20,407 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:57:20,407 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:57:20,419 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2019-10-22 08:57:20,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 08:57:20,425 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,425 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:20,427 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:20,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:20,432 INFO L82 PathProgramCache]: Analyzing trace with hash -556426464, now seen corresponding path program 1 times [2019-10-22 08:57:20,440 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:20,440 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970669557] [2019-10-22 08:57:20,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/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 [2019-10-22 08:57:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 08:57:20,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:20,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:20,577 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:20,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:20,582 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970669557] [2019-10-22 08:57:20,583 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:20,583 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 08:57:20,583 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369079444] [2019-10-22 08:57:20,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:57:20,588 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:20,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:57:20,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:20,604 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2019-10-22 08:57:20,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:20,620 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-10-22 08:57:20,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:57:20,622 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-22 08:57:20,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:20,630 INFO L225 Difference]: With dead ends: 66 [2019-10-22 08:57:20,630 INFO L226 Difference]: Without dead ends: 31 [2019-10-22 08:57:20,633 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:57:20,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-22 08:57:20,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-10-22 08:57:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-10-22 08:57:20,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2019-10-22 08:57:20,667 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 13 [2019-10-22 08:57:20,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:20,668 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2019-10-22 08:57:20,668 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:57:20,668 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2019-10-22 08:57:20,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 08:57:20,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:20,669 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:20,876 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 08:57:20,876 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:20,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:20,876 INFO L82 PathProgramCache]: Analyzing trace with hash -56818241, now seen corresponding path program 1 times [2019-10-22 08:57:20,877 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:20,877 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267091879] [2019-10-22 08:57:20,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/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 [2019-10-22 08:57:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:20,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 08:57:20,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:21,038 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:21,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:21,150 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267091879] [2019-10-22 08:57:21,150 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:21,150 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 08:57:21,150 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305957631] [2019-10-22 08:57:21,156 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 08:57:21,156 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:21,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 08:57:21,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 08:57:21,157 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 8 states. [2019-10-22 08:57:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:21,350 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2019-10-22 08:57:21,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 08:57:21,351 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2019-10-22 08:57:21,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:21,351 INFO L225 Difference]: With dead ends: 38 [2019-10-22 08:57:21,352 INFO L226 Difference]: Without dead ends: 18 [2019-10-22 08:57:21,353 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-10-22 08:57:21,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-22 08:57:21,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-22 08:57:21,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-22 08:57:21,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-22 08:57:21,357 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-10-22 08:57:21,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:21,358 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-22 08:57:21,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 08:57:21,358 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-22 08:57:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 08:57:21,359 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:21,359 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:21,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 08:57:21,568 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:21,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:21,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1951048762, now seen corresponding path program 1 times [2019-10-22 08:57:21,569 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:21,569 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [819542932] [2019-10-22 08:57:21,569 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-10-22 08:57:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:57:21,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:57:21,702 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:57:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:21,710 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 08:57:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:57:21,712 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [819542932] [2019-10-22 08:57:21,712 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:57:21,712 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-10-22 08:57:21,712 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937266951] [2019-10-22 08:57:21,713 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:57:21,713 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 08:57:21,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:57:21,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:21,713 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2019-10-22 08:57:21,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:57:21,733 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-10-22 08:57:21,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:57:21,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-22 08:57:21,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:57:21,735 INFO L225 Difference]: With dead ends: 21 [2019-10-22 08:57:21,736 INFO L226 Difference]: Without dead ends: 18 [2019-10-22 08:57:21,736 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:57:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-22 08:57:21,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-22 08:57:21,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-22 08:57:21,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-10-22 08:57:21,743 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-10-22 08:57:21,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:57:21,744 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-10-22 08:57:21,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:57:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-10-22 08:57:21,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 08:57:21,745 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:57:21,745 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:57:21,945 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 08:57:21,946 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:57:21,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:57:21,946 INFO L82 PathProgramCache]: Analyzing trace with hash 352844637, now seen corresponding path program 1 times [2019-10-22 08:57:21,946 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 08:57:21,947 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1269277733] [2019-10-22 08:57:21,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-10-22 08:57:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:57:22,270 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-10-22 08:57:22,270 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 08:57:22,471 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 08:57:22,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:57:22 BoogieIcfgContainer [2019-10-22 08:57:22,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:57:22,501 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:57:22,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:57:22,501 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:57:22,502 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:57:20" (3/4) ... [2019-10-22 08:57:22,504 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 08:57:22,558 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c2d5ffb4-783a-4cdf-94ef-2e49e30c4653/bin/uautomizer/witness.graphml [2019-10-22 08:57:22,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:57:22,565 INFO L168 Benchmark]: Toolchain (without parser) took 3188.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -56.8 MB). Peak memory consumption was 100.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:22,566 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:57:22,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:22,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -211.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:22,567 INFO L168 Benchmark]: Boogie Preprocessor took 42.21 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. [2019-10-22 08:57:22,567 INFO L168 Benchmark]: RCFGBuilder took 502.62 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:22,573 INFO L168 Benchmark]: TraceAbstraction took 2151.59 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: 100.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:57:22,573 INFO L168 Benchmark]: Witness Printer took 57.36 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. [2019-10-22 08:57:22,575 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 977.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.86 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 934.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 114.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 934.9 MB in the beginning and 1.1 GB in the end (delta: -211.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.21 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 502.62 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: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2151.59 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: 100.7 MB). Peak memory consumption was 100.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.36 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: 86]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] static const float one_modf = 1.0; VAL [one_modf=1.0] [L80] float x = 0.0f / 0.0f; [L81] float iptr; [L14] __int32_t i0, j0; [L15] __uint32_t i; VAL [one_modf=1.0] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [one_modf=1.0] [L22] COND FALSE !(j0 < 23) [L56] __uint32_t ix; [L57] *iptr = x * one_modf VAL [one_modf=1.0] [L59] ieee_float_shape_type gf_u; [L60] gf_u.value = (x) [L61] EXPR gf_u.word [L61] (ix) = gf_u.word [L64] ieee_float_shape_type sf_u; [L65] sf_u.word = (ix & 0x80000000) [L66] EXPR sf_u.value [L66] (x) = sf_u.value [L68] return x; VAL [one_modf=1.0] [L82] float res = modf_float(x, &iptr); [L85] EXPR \read(iptr) [L73] return x != x; VAL [one_modf=1.0] [L85] isnan_float(iptr) && !isnan_float(res) [L73] return x != x; VAL [one_modf=1.0] [L85] isnan_float(iptr) && !isnan_float(res) VAL [one_modf=1.0] [L85] COND TRUE isnan_float(iptr) && !isnan_float(res) [L86] __VERIFIER_error() VAL [one_modf=1.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Result: UNSAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 46 SDslu, 34 SDs, 0 SdLazy, 17 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 2 QuantifiedInterpolants, 2434 SizeOfPredicates, 6 NumberOfNonLiveVariables, 153 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...