./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/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 04e5b929de4769f01a6c1d571d92eec73b544ab1 ................................................................................................................................................................................................................................................................................................................ 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_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/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 04e5b929de4769f01a6c1d571d92eec73b544ab1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-19 22:31:25,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:31:25,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:31:25,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:31:25,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:31:25,227 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:31:25,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:31:25,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:31:25,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:31:25,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:31:25,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:31:25,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:31:25,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:31:25,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:31:25,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:31:25,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:31:25,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:31:25,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:31:25,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:31:25,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:31:25,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:31:25,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:31:25,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:31:25,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:31:25,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:31:25,250 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:31:25,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:31:25,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:31:25,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:31:25,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:31:25,253 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:31:25,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:31:25,254 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:31:25,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:31:25,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:31:25,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:31:25,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:31:25,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:31:25,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:31:25,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:31:25,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:31:25,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-19 22:31:25,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:31:25,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:31:25,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:31:25,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:31:25,273 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:31:25,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:31:25,274 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:31:25,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:31:25,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:31:25,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:31:25,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:31:25,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:31:25,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:31:25,275 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:31:25,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:31:25,276 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:31:25,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:31:25,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:31:25,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:31:25,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:31:25,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:31:25,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:31:25,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:31:25,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:31:25,278 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:31:25,278 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:31:25,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-19 22:31:25,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:31:25,278 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_84259263-59af-419f-8a66-6e1bc680efe7/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 -> 04e5b929de4769f01a6c1d571d92eec73b544ab1 [2019-11-19 22:31:25,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:31:25,434 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:31:25,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:31:25,439 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:31:25,439 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:31:25,440 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-11-19 22:31:25,509 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data/3e0c31188/54b0980ca0c9451e8ee58470d393ecef/FLAG2b9d0eb8c [2019-11-19 22:31:25,900 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:31:25,901 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-11-19 22:31:25,907 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data/3e0c31188/54b0980ca0c9451e8ee58470d393ecef/FLAG2b9d0eb8c [2019-11-19 22:31:26,303 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data/3e0c31188/54b0980ca0c9451e8ee58470d393ecef [2019-11-19 22:31:26,306 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:31:26,307 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:31:26,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:31:26,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:31:26,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:31:26,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18448f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26, skipping insertion in model container [2019-11-19 22:31:26,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,325 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:31:26,352 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:31:26,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:31:26,651 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:31:26,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:31:26,714 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:31:26,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26 WrapperNode [2019-11-19 22:31:26,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:31:26,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:31:26,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:31:26,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:31:26,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:31:26,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:31:26,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:31:26,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:31:26,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... [2019-11-19 22:31:26,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:31:26,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:31:26,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:31:26,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:31:26,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/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 [2019-11-19 22:31:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:31:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-19 22:31:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-19 22:31:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-19 22:31:26,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:31:26,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:31:26,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-19 22:31:26,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-11-19 22:31:26,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:31:27,297 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:31:27,297 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-19 22:31:27,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:31:27 BoogieIcfgContainer [2019-11-19 22:31:27,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:31:27,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:31:27,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:31:27,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:31:27,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:31:26" (1/3) ... [2019-11-19 22:31:27,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf48f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:31:27, skipping insertion in model container [2019-11-19 22:31:27,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:26" (2/3) ... [2019-11-19 22:31:27,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf48f60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:31:27, skipping insertion in model container [2019-11-19 22:31:27,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:31:27" (3/3) ... [2019-11-19 22:31:27,305 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2019-11-19 22:31:27,313 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:31:27,319 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:31:27,328 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:31:27,347 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:31:27,347 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:31:27,347 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:31:27,347 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:31:27,347 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:31:27,348 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:31:27,348 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:31:27,348 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:31:27,359 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-19 22:31:27,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 22:31:27,363 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:31:27,364 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:31:27,364 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:31:27,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:31:27,368 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-11-19 22:31:27,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:31:27,375 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902754683] [2019-11-19 22:31:27,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:31:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:31:27,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:31:27,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902754683] [2019-11-19 22:31:27,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:31:27,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-19 22:31:27,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754132257] [2019-11-19 22:31:27,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:31:27,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:31:27,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:31:27,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:31:27,516 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-11-19 22:31:27,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:31:27,535 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-11-19 22:31:27,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:31:27,536 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-19 22:31:27,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:31:27,546 INFO L225 Difference]: With dead ends: 76 [2019-11-19 22:31:27,546 INFO L226 Difference]: Without dead ends: 36 [2019-11-19 22:31:27,549 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 [2019-11-19 22:31:27,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-19 22:31:27,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-19 22:31:27,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-19 22:31:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-11-19 22:31:27,579 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-11-19 22:31:27,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:31:27,579 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-11-19 22:31:27,579 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:31:27,579 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-11-19 22:31:27,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 22:31:27,580 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:31:27,581 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:31:27,581 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:31:27,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:31:27,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-11-19 22:31:27,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:31:27,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896850306] [2019-11-19 22:31:27,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:31:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:31:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:31:27,704 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:31:27,704 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-19 22:31:27,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:31:27 BoogieIcfgContainer [2019-11-19 22:31:27,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:31:27,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:31:27,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:31:27,740 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:31:27,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:31:27" (3/4) ... [2019-11-19 22:31:27,743 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-19 22:31:27,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:31:27,746 INFO L168 Benchmark]: Toolchain (without parser) took 1438.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -98.6 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:27,746 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-11-19 22:31:27,747 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:27,748 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:27,748 INFO L168 Benchmark]: Boogie Preprocessor took 45.44 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. [2019-11-19 22:31:27,749 INFO L168 Benchmark]: RCFGBuilder took 489.60 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:27,749 INFO L168 Benchmark]: TraceAbstraction took 439.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:31:27,750 INFO L168 Benchmark]: Witness Printer took 4.38 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. [2019-11-19 22:31:27,753 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 407.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.8 MB in the beginning and 1.1 GB in the end (delta: -168.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.44 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 489.60 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: 34.6 MB). Peak memory consumption was 34.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 439.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.38 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: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 154, overapproximation of bitwiseAnd at line 73, overapproximation of someBinaryArithmeticDOUBLEoperation at line 82, overapproximation of someBinaryDOUBLEComparisonOperation at line 158. Possible FailurePath: [L37-L42] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L44-L49] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L51-L58] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L60-L62] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L154] double x = -0.0; [L65] double w, s1, s2, z; [L66] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L69] ieee_double_shape_type gh_u; [L70] gh_u.value = (x) [L71] EXPR gh_u.parts.msw [L71] (hx) = gh_u.parts.msw [L73] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L74] COND TRUE ix >= 0x44100000 [L75] __uint32_t low; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L77] ieee_double_shape_type gl_u; [L78] gl_u.value = (x) [L79] EXPR gl_u.parts.lsw [L79] (low) = gl_u.parts.lsw [L81] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L82] return x + x; VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L155] double res = atan_double(x); [L158] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L158] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L159] __VERIFIER_error() VAL [aT_atan={6:0}, atanhi_atan={3:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-19 22:31:29,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:31:29,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:31:29,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-11-19 22:31:29,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:31:29,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:31:29,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:31:29,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:31:29,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:31:29,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:31:29,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:31:29,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:31:29,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:31:29,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:31:29,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:31:29,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:31:29,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-19 22:31:29,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:31:29,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:31:29,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:31:29,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:31:29,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:31:29,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:31:29,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:31:29,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:31:29,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:31:29,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:31:29,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:31:29,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-19 22:31:29,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:31:29,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:31:29,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:31:29,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:31:29,749 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:31:29,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:31:29,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:31:29,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:31:29,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:31:29,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-19 22:31:29,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-19 22:31:29,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-19 22:31:29,751 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-19 22:31:29,752 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-19 22:31:29,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:31:29,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:31:29,753 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:31:29,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-19 22:31:29,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:31:29,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:31:29,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-19 22:31:29,754 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-19 22:31:29,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-19 22:31:29,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:31:29,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-19 22:31:29,755 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-19 22:31:29,755 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-19 22:31:29,755 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-19 22:31:29,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-19 22:31:29,756 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-19 22:31:29,756 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_84259263-59af-419f-8a66-6e1bc680efe7/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 -> 04e5b929de4769f01a6c1d571d92eec73b544ab1 [2019-11-19 22:31:30,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:31:30,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:31:30,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:31:30,075 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:31:30,076 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:31:30,076 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-11-19 22:31:30,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data/fb837920f/689d1d4f3ecf4a37a060ce47ee7b3b58/FLAGdf392e24f [2019-11-19 22:31:30,531 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:31:30,532 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2019-11-19 22:31:30,540 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data/fb837920f/689d1d4f3ecf4a37a060ce47ee7b3b58/FLAGdf392e24f [2019-11-19 22:31:30,898 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/data/fb837920f/689d1d4f3ecf4a37a060ce47ee7b3b58 [2019-11-19 22:31:30,901 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:31:30,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:31:30,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:31:30,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:31:30,906 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:31:30,907 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:31:30" (1/1) ... [2019-11-19 22:31:30,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@122e77ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:30, skipping insertion in model container [2019-11-19 22:31:30,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:31:30" (1/1) ... [2019-11-19 22:31:30,916 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:31:30,947 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:31:31,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:31:31,189 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:31:31,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:31:31,319 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:31:31,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31 WrapperNode [2019-11-19 22:31:31,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:31:31,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:31:31,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:31:31,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:31:31,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:31:31,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:31:31,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:31:31,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:31:31,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... [2019-11-19 22:31:31,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:31:31,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:31:31,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:31:31,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:31:31,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/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 [2019-11-19 22:31:31,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-19 22:31:31,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-19 22:31:31,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:31:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2019-11-19 22:31:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-19 22:31:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:31:31,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:31:31,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-19 22:31:31,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-19 22:31:48,175 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:31:48,175 INFO L285 CfgBuilder]: Removed 20 assume(true) statements. [2019-11-19 22:31:48,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:31:48 BoogieIcfgContainer [2019-11-19 22:31:48,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:31:48,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-19 22:31:48,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-19 22:31:48,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-19 22:31:48,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:31:30" (1/3) ... [2019-11-19 22:31:48,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3177370d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:31:48, skipping insertion in model container [2019-11-19 22:31:48,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:31:31" (2/3) ... [2019-11-19 22:31:48,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3177370d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:31:48, skipping insertion in model container [2019-11-19 22:31:48,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:31:48" (3/3) ... [2019-11-19 22:31:48,185 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2019-11-19 22:31:48,195 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-19 22:31:48,200 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-19 22:31:48,207 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-19 22:31:48,222 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-19 22:31:48,223 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-19 22:31:48,223 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-19 22:31:48,223 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:31:48,223 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:31:48,223 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-19 22:31:48,223 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:31:48,224 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-19 22:31:48,233 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-11-19 22:31:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-19 22:31:48,239 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:31:48,240 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:31:48,240 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:31:48,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:31:48,244 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2019-11-19 22:31:48,252 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:31:48,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [415244576] [2019-11-19 22:31:48,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/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 [2019-11-19 22:31:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:31:48,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-19 22:31:48,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:31:48,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:31:48,540 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:31:48,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:31:48,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [415244576] [2019-11-19 22:31:48,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:31:48,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-19 22:31:48,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313811080] [2019-11-19 22:31:48,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-19 22:31:48,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:31:48,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-19 22:31:48,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:31:48,560 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-11-19 22:31:48,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:31:48,575 INFO L93 Difference]: Finished difference Result 76 states and 120 transitions. [2019-11-19 22:31:48,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-19 22:31:48,577 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-19 22:31:48,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:31:48,585 INFO L225 Difference]: With dead ends: 76 [2019-11-19 22:31:48,585 INFO L226 Difference]: Without dead ends: 36 [2019-11-19 22:31:48,588 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-19 22:31:48,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-19 22:31:48,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-19 22:31:48,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-19 22:31:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2019-11-19 22:31:48,623 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2019-11-19 22:31:48,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:31:48,623 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2019-11-19 22:31:48,623 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-19 22:31:48,624 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2019-11-19 22:31:48,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 22:31:48,625 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:31:48,625 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:31:48,838 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-19 22:31:48,838 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:31:48,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:31:48,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2019-11-19 22:31:48,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:31:48,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739933745] [2019-11-19 22:31:48,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/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 [2019-11-19 22:31:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:31:49,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-19 22:31:49,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:31:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:31:49,180 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:31:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:31:49,255 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739933745] [2019-11-19 22:31:49,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:31:49,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-19 22:31:49,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636013120] [2019-11-19 22:31:49,257 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-19 22:31:49,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:31:49,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-19 22:31:49,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-19 22:31:49,258 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2019-11-19 22:31:57,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:31:57,577 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2019-11-19 22:31:57,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:31:57,578 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2019-11-19 22:31:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:31:57,579 INFO L225 Difference]: With dead ends: 59 [2019-11-19 22:31:57,579 INFO L226 Difference]: Without dead ends: 32 [2019-11-19 22:31:57,580 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-19 22:31:57,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-19 22:31:57,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2019-11-19 22:31:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-19 22:31:57,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-11-19 22:31:57,584 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2019-11-19 22:31:57,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:31:57,585 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-11-19 22:31:57,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-19 22:31:57,585 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-11-19 22:31:57,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-19 22:31:57,586 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:31:57,586 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:31:57,790 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-19 22:31:57,791 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:31:57,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:31:57,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2019-11-19 22:31:57,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:31:57,792 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [499008672] [2019-11-19 22:31:57,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/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 [2019-11-19 22:31:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:31:58,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-19 22:31:58,063 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:31:58,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:31:58,107 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:31:58,108 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:31:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:31:58,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [499008672] [2019-11-19 22:31:58,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:31:58,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-19 22:31:58,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371381236] [2019-11-19 22:31:58,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-19 22:31:58,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:31:58,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-19 22:31:58,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-19 22:31:58,153 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2019-11-19 22:32:07,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:32:07,943 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-19 22:32:07,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 22:32:07,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2019-11-19 22:32:07,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:32:07,945 INFO L225 Difference]: With dead ends: 35 [2019-11-19 22:32:07,945 INFO L226 Difference]: Without dead ends: 32 [2019-11-19 22:32:07,946 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-19 22:32:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-19 22:32:07,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2019-11-19 22:32:07,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-19 22:32:07,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2019-11-19 22:32:07,950 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2019-11-19 22:32:07,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:32:07,951 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2019-11-19 22:32:07,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-19 22:32:07,951 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2019-11-19 22:32:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-19 22:32:07,952 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:32:07,952 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:32:08,152 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-19 22:32:08,152 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:32:08,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:32:08,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2019-11-19 22:32:08,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:32:08,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246440762] [2019-11-19 22:32:08,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/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 [2019-11-19 22:32:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:32:12,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-19 22:32:12,474 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:32:12,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:32:12,524 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:32:13,301 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-11-19 22:32:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:32:13,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246440762] [2019-11-19 22:32:13,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:32:13,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-19 22:32:13,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545168848] [2019-11-19 22:32:13,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-19 22:32:13,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:32:13,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:32:13,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:32:13,478 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2019-11-19 22:32:13,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:32:13,644 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-19 22:32:13,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-19 22:32:13,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2019-11-19 22:32:13,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:32:13,654 INFO L225 Difference]: With dead ends: 32 [2019-11-19 22:32:13,655 INFO L226 Difference]: Without dead ends: 18 [2019-11-19 22:32:13,655 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:32:13,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-19 22:32:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-19 22:32:13,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-19 22:32:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-11-19 22:32:13,658 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2019-11-19 22:32:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:32:13,658 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-11-19 22:32:13,659 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-19 22:32:13,659 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-11-19 22:32:13,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-19 22:32:13,659 INFO L402 BasicCegarLoop]: Found error trace [2019-11-19 22:32:13,660 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:32:13,860 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-19 22:32:13,861 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-19 22:32:13,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:32:13,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2019-11-19 22:32:13,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-19 22:32:13,862 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932647266] [2019-11-19 22:32:13,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-11-19 22:32:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:32:14,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-19 22:32:14,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 22:32:14,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:32:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:32:14,269 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-19 22:32:14,270 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-19 22:32:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 22:32:14,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932647266] [2019-11-19 22:32:14,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:32:14,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2019-11-19 22:32:14,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971709551] [2019-11-19 22:32:14,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-19 22:32:14,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-19 22:32:14,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-19 22:32:14,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-11-19 22:32:14,490 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2019-11-19 22:32:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:32:14,814 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-11-19 22:32:14,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 22:32:14,815 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-11-19 22:32:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-19 22:32:14,815 INFO L225 Difference]: With dead ends: 18 [2019-11-19 22:32:14,815 INFO L226 Difference]: Without dead ends: 0 [2019-11-19 22:32:14,816 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2019-11-19 22:32:14,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-19 22:32:14,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-19 22:32:14,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-19 22:32:14,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-19 22:32:14,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-19 22:32:14,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-19 22:32:14,817 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-19 22:32:14,817 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-19 22:32:14,817 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-19 22:32:14,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-19 22:32:15,018 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-11-19 22:32:15,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-19 22:32:15,216 INFO L444 ceAbstractionStarter]: For program point L68-3(lines 68 72) no Hoare annotation was computed. [2019-11-19 22:32:15,216 INFO L444 ceAbstractionStarter]: For program point L159(line 159) no Hoare annotation was computed. [2019-11-19 22:32:15,216 INFO L444 ceAbstractionStarter]: For program point L126(lines 126 131) no Hoare annotation was computed. [2019-11-19 22:32:15,216 INFO L444 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2019-11-19 22:32:15,216 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: false [2019-11-19 22:32:15,217 INFO L440 ceAbstractionStarter]: At program point L143(lines 134 144) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((v_skolemized_v_prenex_22_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_22_3) ((_ extract 62 52) v_skolemized_v_prenex_22_3) ((_ extract 51 0) v_skolemized_v_prenex_22_3)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) v_skolemized_v_prenex_22_3)))) (= ULTIMATE.start_main_~res~0 .cse0) (= .cse0 |ULTIMATE.start_atan_double_#res|) |ULTIMATE.start_main_#t~short31| (= (bvadd |ULTIMATE.start___signbit_double_#res| (_ bv4294967295 32)) (_ bv0 32)) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x .cse0) (= ULTIMATE.start___signbit_double_~x .cse0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0))) [2019-11-19 22:32:15,217 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-19 22:32:15,217 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-19 22:32:15,217 INFO L444 ceAbstractionStarter]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2019-11-19 22:32:15,217 INFO L440 ceAbstractionStarter]: At program point L137-2(lines 137 141) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ULTIMATE.start_main_~res~0 .cse0) (= .cse0 |ULTIMATE.start_atan_double_#res|) |ULTIMATE.start_main_#t~short31| (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x .cse0) (= ULTIMATE.start___signbit_double_~x .cse0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0))) [2019-11-19 22:32:15,217 INFO L444 ceAbstractionStarter]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2019-11-19 22:32:15,217 INFO L444 ceAbstractionStarter]: For program point L96(lines 96 112) no Hoare annotation was computed. [2019-11-19 22:32:15,217 INFO L440 ceAbstractionStarter]: At program point L30(lines 17 31) the Hoare annotation is: false [2019-11-19 22:32:15,217 INFO L444 ceAbstractionStarter]: For program point L88(lines 88 113) no Hoare annotation was computed. [2019-11-19 22:32:15,217 INFO L444 ceAbstractionStarter]: For program point L105(lines 105 111) no Hoare annotation was computed. [2019-11-19 22:32:15,218 INFO L444 ceAbstractionStarter]: For program point L105-2(lines 88 113) no Hoare annotation was computed. [2019-11-19 22:32:15,218 INFO L447 ceAbstractionStarter]: At program point L163(lines 146 164) the Hoare annotation is: true [2019-11-19 22:32:15,218 INFO L444 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2019-11-19 22:32:15,218 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 103) no Hoare annotation was computed. [2019-11-19 22:32:15,218 INFO L444 ceAbstractionStarter]: For program point L130-2(line 130) no Hoare annotation was computed. [2019-11-19 22:32:15,218 INFO L440 ceAbstractionStarter]: At program point L130-3(lines 64 132) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= .cse0 |ULTIMATE.start_atan_double_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x .cse0) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0))) [2019-11-19 22:32:15,218 INFO L444 ceAbstractionStarter]: For program point L89(lines 89 92) no Hoare annotation was computed. [2019-11-19 22:32:15,218 INFO L444 ceAbstractionStarter]: For program point L89-2(lines 89 92) no Hoare annotation was computed. [2019-11-19 22:32:15,218 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 29) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point L24-1(lines 17 31) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point L24-2(lines 24 29) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point L74(lines 74 87) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point L83(lines 83 86) no Hoare annotation was computed. [2019-11-19 22:32:15,219 INFO L444 ceAbstractionStarter]: For program point L158(line 158) no Hoare annotation was computed. [2019-11-19 22:32:15,220 INFO L444 ceAbstractionStarter]: For program point L158-2(lines 158 161) no Hoare annotation was computed. [2019-11-19 22:32:15,220 INFO L444 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-11-19 22:32:15,220 INFO L440 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-11-19 22:32:15,220 INFO L444 ceAbstractionStarter]: For program point L76-3(lines 74 87) no Hoare annotation was computed. [2019-11-19 22:32:15,220 INFO L444 ceAbstractionStarter]: For program point L68-1(lines 68 72) no Hoare annotation was computed. [2019-11-19 22:32:15,220 INFO L440 ceAbstractionStarter]: At program point L68-2(lines 68 72) the Hoare annotation is: (and (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_atan~0) (= ULTIMATE.start_atan_double_~x (fp.neg (_ +zero 11 53))) (= ((_ to_fp 11 53) roundNearestTiesToEven 1.0) ~one_atan~0)) [2019-11-19 22:32:15,227 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,227 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,230 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,230 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,232 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,233 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,233 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,233 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,234 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,236 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,237 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,238 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,239 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,240 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,240 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,241 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,241 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,242 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,242 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 10:32:15 BoogieIcfgContainer [2019-11-19 22:32:15,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-19 22:32:15,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:32:15,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:32:15,245 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:32:15,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:31:48" (3/4) ... [2019-11-19 22:32:15,249 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-19 22:32:15,261 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-11-19 22:32:15,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-19 22:32:15,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-19 22:32:15,289 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-19 22:32:15,290 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-19 22:32:15,290 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists v_skolemized_v_prenex_22_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_22_3[63:63], v_skolemized_v_prenex_22_3[62:52], v_skolemized_v_prenex_22_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_22_3[63:32]) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan [2019-11-19 22:32:15,329 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_84259263-59af-419f-8a66-6e1bc680efe7/bin/uautomizer/witness.graphml [2019-11-19 22:32:15,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:32:15,330 INFO L168 Benchmark]: Toolchain (without parser) took 44428.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 961.8 MB in the beginning and 852.4 MB in the end (delta: 109.3 MB). Peak memory consumption was 244.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:32:15,330 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:32:15,331 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:32:15,331 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.94 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:32:15,331 INFO L168 Benchmark]: Boogie Preprocessor took 43.73 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. [2019-11-19 22:32:15,332 INFO L168 Benchmark]: RCFGBuilder took 16757.20 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:32:15,332 INFO L168 Benchmark]: TraceAbstraction took 27066.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 859.0 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. [2019-11-19 22:32:15,333 INFO L168 Benchmark]: Witness Printer took 84.14 ms. Allocated memory is still 1.2 GB. Free memory was 859.0 MB in the beginning and 852.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-19 22:32:15,334 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 416.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 961.8 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.94 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.73 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 16757.20 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: 46.6 MB). Peak memory consumption was 46.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27066.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 859.0 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. * Witness Printer took 84.14 ms. Allocated memory is still 1.2 GB. Free memory was 859.0 MB in the beginning and 852.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Loop Invariant [2019-11-19 22:32:15,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,342 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,343 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 134]: Loop Invariant [2019-11-19 22:32:15,344 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,344 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,344 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,344 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,345 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,345 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_22_3,QUANTIFIED] [2019-11-19 22:32:15,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,347 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((((\exists v_skolemized_v_prenex_22_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_22_3[63:63], v_skolemized_v_prenex_22_3[62:52], v_skolemized_v_prenex_22_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_v_prenex_22_3[63:32]) && res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~bvadd64(\result, 4294967295bv32) == 0bv32) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant [2019-11-19 22:32:15,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,349 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,349 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((res == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == \result) && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 68]: Loop Invariant [2019-11-19 22:32:15,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-19 22:32:15,350 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_atan && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0) == one_atan - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Result: SAFE, OverallTime: 26.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 18.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 113 SDtfs, 176 SDslu, 186 SDs, 0 SdLazy, 76 SolverSat, 13 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 115 HoareAnnotationTreeSize, 8 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 9649 SizeOfPredicates, 27 NumberOfNonLiveVariables, 562 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...