./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1164a9832b4afc44dcf9dcf8d1d6de462821ea74 ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_double_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1164a9832b4afc44dcf9dcf8d1d6de462821ea74 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:36:02,904 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:36:02,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:36:02,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:36:02,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:36:03,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:36:03,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:36:03,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:36:03,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:36:03,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:36:03,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:36:03,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:36:03,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:36:03,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:36:03,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:36:03,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:36:03,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:36:03,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:36:03,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:36:03,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:36:03,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:36:03,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:36:03,046 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:36:03,047 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:36:03,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:36:03,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:36:03,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:36:03,059 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:36:03,059 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:36:03,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:36:03,061 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:36:03,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:36:03,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:36:03,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:36:03,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:36:03,066 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:36:03,067 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:36:03,067 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:36:03,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:36:03,068 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:36:03,069 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:36:03,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:36:03,107 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:36:03,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:36:03,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:36:03,114 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:36:03,114 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:36:03,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:36:03,115 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:36:03,115 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:36:03,115 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:36:03,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:36:03,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:36:03,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:36:03,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:36:03,117 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:36:03,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:36:03,117 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:36:03,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:36:03,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:36:03,118 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:36:03,118 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:36:03,118 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:36:03,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:36:03,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:36:03,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:36:03,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:36:03,119 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:36:03,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:36:03,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:36:03,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:36:03,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1164a9832b4afc44dcf9dcf8d1d6de462821ea74 [2020-11-29 21:36:03,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:36:03,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:36:03,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:36:03,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:36:03,416 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:36:03,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2020-11-29 21:36:03,504 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data/d66327032/3edce68708f3417db3fe61bd1dbd3227/FLAGfbe474ba6 [2020-11-29 21:36:03,920 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:36:03,921 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2020-11-29 21:36:03,927 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data/d66327032/3edce68708f3417db3fe61bd1dbd3227/FLAGfbe474ba6 [2020-11-29 21:36:04,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data/d66327032/3edce68708f3417db3fe61bd1dbd3227 [2020-11-29 21:36:04,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:36:04,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:36:04,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:36:04,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:36:04,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:36:04,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78506851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04, skipping insertion in model container [2020-11-29 21:36:04,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:36:04,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:36:04,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:36:04,533 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:36:04,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:36:04,568 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:36:04,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04 WrapperNode [2020-11-29 21:36:04,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:36:04,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:36:04,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:36:04,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:36:04,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:36:04,606 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:36:04,606 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:36:04,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:36:04,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... [2020-11-29 21:36:04,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:36:04,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:36:04,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:36:04,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:36:04,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/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 [2020-11-29 21:36:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:36:04,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:36:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:36:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:36:04,847 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:36:04,847 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 21:36:04,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:04 BoogieIcfgContainer [2020-11-29 21:36:04,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:36:04,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:36:04,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:36:04,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:36:04,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:36:04" (1/3) ... [2020-11-29 21:36:04,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7650ce31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:36:04, skipping insertion in model container [2020-11-29 21:36:04,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:04" (2/3) ... [2020-11-29 21:36:04,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7650ce31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:36:04, skipping insertion in model container [2020-11-29 21:36:04,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:04" (3/3) ... [2020-11-29 21:36:04,859 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2020-11-29 21:36:04,871 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:36:04,875 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:36:04,887 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:36:04,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:36:04,908 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:36:04,908 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:36:04,909 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:36:04,909 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:36:04,909 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:36:04,909 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:36:04,909 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:36:04,921 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 21:36:04,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 21:36:04,926 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:36:04,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 21:36:04,927 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:36:04,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:04,932 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 21:36:04,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:04,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515578222] [2020-11-29 21:36:04,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:05,028 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:05,046 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:05,065 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:36:05,066 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:36:05,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:36:05,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:36:05 BoogieIcfgContainer [2020-11-29 21:36:05,085 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:36:05,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:36:05,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:36:05,086 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:36:05,087 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:04" (3/4) ... [2020-11-29 21:36:05,090 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:36:05,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:36:05,092 INFO L168 Benchmark]: Toolchain (without parser) took 764.05 ms. Allocated memory is still 94.4 MB. Free memory was 60.0 MB in the beginning and 46.3 MB in the end (delta: 13.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:05,093 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 66.0 MB in the beginning and 66.0 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:05,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.69 ms. Allocated memory is still 94.4 MB. Free memory was 59.9 MB in the beginning and 71.5 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:05,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.14 ms. Allocated memory is still 94.4 MB. Free memory was 71.1 MB in the beginning and 69.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:05,096 INFO L168 Benchmark]: Boogie Preprocessor took 17.71 ms. Allocated memory is still 94.4 MB. Free memory was 69.8 MB in the beginning and 68.9 MB in the end (delta: 843.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:05,097 INFO L168 Benchmark]: RCFGBuilder took 224.68 ms. Allocated memory is still 94.4 MB. Free memory was 68.9 MB in the beginning and 58.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:05,098 INFO L168 Benchmark]: TraceAbstraction took 235.20 ms. Allocated memory is still 94.4 MB. Free memory was 58.5 MB in the beginning and 46.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:05,099 INFO L168 Benchmark]: Witness Printer took 4.14 ms. Allocated memory is still 94.4 MB. Free memory was 46.7 MB in the beginning and 46.3 MB in the end (delta: 407.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:05,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 94.4 MB. Free memory was 66.0 MB in the beginning and 66.0 MB in the end (delta: 26.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.69 ms. Allocated memory is still 94.4 MB. Free memory was 59.9 MB in the beginning and 71.5 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.14 ms. Allocated memory is still 94.4 MB. Free memory was 71.1 MB in the beginning and 69.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.71 ms. Allocated memory is still 94.4 MB. Free memory was 69.8 MB in the beginning and 68.9 MB in the end (delta: 843.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 224.68 ms. Allocated memory is still 94.4 MB. Free memory was 68.9 MB in the beginning and 58.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 235.20 ms. Allocated memory is still 94.4 MB. Free memory was 58.5 MB in the beginning and 46.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.14 ms. Allocated memory is still 94.4 MB. Free memory was 46.7 MB in the beginning and 46.3 MB in the end (delta: 407.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 13. Possible FailurePath: [L10] double x, y, z, r; [L12] x = 1e8 [L13] y = x + 1 [L14] z = x - 1 [L15] r = y - z [L6] COND TRUE !(cond) [L3] __assert_fail("0", "addsub_double_exact.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-29 21:36:07,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:36:07,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:36:07,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:36:07,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:36:07,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:36:07,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:36:07,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:36:07,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:36:07,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:36:07,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:36:07,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:36:07,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:36:07,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:36:07,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:36:07,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:36:07,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:36:07,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:36:07,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:36:07,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:36:07,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:36:07,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:36:07,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:36:07,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:36:07,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:36:07,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:36:07,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:36:07,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:36:07,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:36:07,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:36:07,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:36:07,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:36:07,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:36:07,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:36:07,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:36:07,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:36:07,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:36:07,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:36:07,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:36:07,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:36:07,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:36:07,636 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 21:36:07,662 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:36:07,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:36:07,663 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:36:07,663 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:36:07,664 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:36:07,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:36:07,664 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:36:07,664 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:36:07,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:36:07,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:36:07,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:36:07,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:36:07,666 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 21:36:07,666 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 21:36:07,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:36:07,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:36:07,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:36:07,667 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:36:07,667 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:36:07,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:36:07,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:36:07,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:36:07,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:36:07,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:36:07,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:36:07,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:36:07,669 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 21:36:07,669 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 21:36:07,670 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:36:07,670 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:36:07,670 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:36:07,670 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1164a9832b4afc44dcf9dcf8d1d6de462821ea74 [2020-11-29 21:36:08,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:36:08,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:36:08,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:36:08,072 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:36:08,077 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:36:08,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2020-11-29 21:36:08,142 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data/5536e6075/d5662e64b63648e78d3351c686d9adb5/FLAGf73b74998 [2020-11-29 21:36:08,713 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:36:08,713 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2020-11-29 21:36:08,719 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data/5536e6075/d5662e64b63648e78d3351c686d9adb5/FLAGf73b74998 [2020-11-29 21:36:09,081 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/data/5536e6075/d5662e64b63648e78d3351c686d9adb5 [2020-11-29 21:36:09,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:36:09,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:36:09,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:36:09,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:36:09,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:36:09,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,102 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359573b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09, skipping insertion in model container [2020-11-29 21:36:09,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:36:09,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:36:09,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:36:09,291 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:36:09,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:36:09,332 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:36:09,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09 WrapperNode [2020-11-29 21:36:09,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:36:09,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:36:09,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:36:09,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:36:09,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:36:09,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:36:09,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:36:09,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:36:09,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... [2020-11-29 21:36:09,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:36:09,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:36:09,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:36:09,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:36:09,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/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 [2020-11-29 21:36:09,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:36:09,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:36:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 21:36:09,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:36:10,341 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:36:10,341 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 21:36:10,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:10 BoogieIcfgContainer [2020-11-29 21:36:10,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:36:10,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:36:10,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:36:10,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:36:10,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:36:09" (1/3) ... [2020-11-29 21:36:10,350 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b209a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:36:10, skipping insertion in model container [2020-11-29 21:36:10,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:09" (2/3) ... [2020-11-29 21:36:10,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b209a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:36:10, skipping insertion in model container [2020-11-29 21:36:10,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:10" (3/3) ... [2020-11-29 21:36:10,353 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2020-11-29 21:36:10,364 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:36:10,368 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:36:10,380 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:36:10,427 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:36:10,427 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:36:10,427 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:36:10,427 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:36:10,428 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:36:10,428 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:36:10,429 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:36:10,429 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:36:10,444 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 21:36:10,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 21:36:10,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:36:10,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 21:36:10,451 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:36:10,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:10,458 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 21:36:10,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:36:10,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722442268] [2020-11-29 21:36:10,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/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 [2020-11-29 21:36:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:10,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:36:10,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:36:11,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:36:11,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:36:11,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:36:11,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722442268] [2020-11-29 21:36:11,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:36:11,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 21:36:11,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011863933] [2020-11-29 21:36:11,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 21:36:11,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:36:11,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 21:36:11,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:36:11,107 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-11-29 21:36:11,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:36:11,583 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-29 21:36:11,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:36:11,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-11-29 21:36:11,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:36:11,611 INFO L225 Difference]: With dead ends: 14 [2020-11-29 21:36:11,612 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:36:11,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:36:11,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:36:11,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:36:11,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:36:11,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:36:11,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-29 21:36:11,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:36:11,640 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:11,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 21:36:11,640 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:36:11,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:36:11,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 21:36:11,858 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:36:11,923 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:36:11,923 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:36:11,923 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:36:11,923 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:36:11,923 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 21:36:11,924 INFO L270 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-29 21:36:11,924 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-29 21:36:11,924 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-29 21:36:11,924 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 21:36:11,924 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-29 21:36:11,934 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 21:36:11,936 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 21:36:11,939 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 21:36:11,939 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 21:36:11,941 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 21:36:11,946 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 21:36:11,948 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 21:36:11,948 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 21:36:11,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:36:11 BoogieIcfgContainer [2020-11-29 21:36:11,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:36:11,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:36:11,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:36:11,955 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:36:11,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:10" (3/4) ... [2020-11-29 21:36:11,959 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:36:11,969 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 21:36:11,969 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 21:36:11,970 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 21:36:11,970 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:36:12,013 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7447daf-688a-4608-82ff-08e28ca25a20/bin/uautomizer/witness.graphml [2020-11-29 21:36:12,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:36:12,015 INFO L168 Benchmark]: Toolchain (without parser) took 2929.29 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.7 MB in the beginning and 32.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:12,017 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 30.0 MB in the beginning and 30.0 MB in the end (delta: 18.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:12,019 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.09 ms. Allocated memory is still 48.2 MB. Free memory was 23.5 MB in the beginning and 25.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:12,019 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.79 ms. Allocated memory is still 48.2 MB. Free memory was 25.1 MB in the beginning and 23.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:12,021 INFO L168 Benchmark]: Boogie Preprocessor took 33.19 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.7 MB in the beginning and 41.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:12,027 INFO L168 Benchmark]: RCFGBuilder took 929.26 ms. Allocated memory is still 58.7 MB. Free memory was 41.8 MB in the beginning and 31.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:12,027 INFO L168 Benchmark]: TraceAbstraction took 1605.47 ms. Allocated memory is still 58.7 MB. Free memory was 30.9 MB in the beginning and 34.2 MB in the end (delta: -3.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:12,028 INFO L168 Benchmark]: Witness Printer took 58.90 ms. Allocated memory is still 58.7 MB. Free memory was 34.2 MB in the beginning and 32.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:12,041 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 48.2 MB. Free memory was 30.0 MB in the beginning and 30.0 MB in the end (delta: 18.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.09 ms. Allocated memory is still 48.2 MB. Free memory was 23.5 MB in the beginning and 25.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.79 ms. Allocated memory is still 48.2 MB. Free memory was 25.1 MB in the beginning and 23.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.19 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.7 MB in the beginning and 41.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 929.26 ms. Allocated memory is still 58.7 MB. Free memory was 41.8 MB in the beginning and 31.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1605.47 ms. Allocated memory is still 58.7 MB. Free memory was 30.9 MB in the beginning and 34.2 MB in the end (delta: -3.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 58.90 ms. Allocated memory is still 58.7 MB. Free memory was 34.2 MB in the beginning and 32.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 8]: Loop Invariant [2020-11-29 21:36:12,050 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 21:36:12,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 21:36:12,051 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 21:36:12,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 6]: Loop Invariant [2020-11-29 21:36:12,052 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 21:36:12,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 21:36:12,052 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 21:36:12,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 7 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...