./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/float_double.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_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/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 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 .................................................................................................................................................................................................................................. 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_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/float_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/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 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 ................................................................................................................................................................................................................................................................................. 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 19:18:32,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:18:32,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:18:32,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:18:32,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:18:32,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:18:32,789 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:18:32,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:18:32,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:18:32,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:18:32,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:18:32,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:18:32,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:18:32,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:18:32,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:18:32,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:18:32,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:18:32,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:18:32,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:18:32,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:18:32,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:18:32,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:18:32,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:18:32,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:18:32,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:18:32,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:18:32,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:18:32,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:18:32,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:18:32,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:18:32,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:18:32,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:18:32,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:18:32,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:18:32,858 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:18:32,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:18:32,859 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:18:32,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:18:32,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:18:32,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:18:32,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:18:32,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 19:18:32,886 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:18:32,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:18:32,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:18:32,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:18:32,888 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:18:32,889 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:18:32,889 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:18:32,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:18:32,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:18:32,890 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:18:32,890 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:18:32,890 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:18:32,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:18:32,890 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:18:32,891 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:18:32,891 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:18:32,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:18:32,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:18:32,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:18:32,892 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:18:32,892 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:18:32,892 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:18:32,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:18:32,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:18:32,893 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:18:32,893 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 19:18:32,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:18:32,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:18:32,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:18:32,894 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_44766b89-4a81-4e79-a3c1-e90b9593e4e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2020-11-29 19:18:33,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:18:33,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:18:33,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:18:33,155 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:18:33,156 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:18:33,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/../../sv-benchmarks/c/float-benchs/float_double.c [2020-11-29 19:18:33,229 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data/e403375f3/30c6aa276187472a878dd39b86fe5e8d/FLAG59d518d00 [2020-11-29 19:18:33,716 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:18:33,717 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/sv-benchmarks/c/float-benchs/float_double.c [2020-11-29 19:18:33,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data/e403375f3/30c6aa276187472a878dd39b86fe5e8d/FLAG59d518d00 [2020-11-29 19:18:34,128 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data/e403375f3/30c6aa276187472a878dd39b86fe5e8d [2020-11-29 19:18:34,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:18:34,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:18:34,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:18:34,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:18:34,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:18:34,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fbf2b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34, skipping insertion in model container [2020-11-29 19:18:34,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:18:34,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:18:34,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:18:34,337 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:18:34,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:18:34,381 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:18:34,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34 WrapperNode [2020-11-29 19:18:34,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:18:34,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:18:34,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:18:34,386 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:18:34,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:18:34,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:18:34,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:18:34,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:18:34,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... [2020-11-29 19:18:34,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:18:34,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:18:34,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:18:34,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:18:34,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/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 19:18:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:18:34,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:18:34,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:18:34,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:18:34,768 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:18:34,768 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 19:18:34,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:18:34 BoogieIcfgContainer [2020-11-29 19:18:34,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:18:34,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:18:34,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:18:34,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:18:34,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:18:34" (1/3) ... [2020-11-29 19:18:34,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1261882e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:18:34, skipping insertion in model container [2020-11-29 19:18:34,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:34" (2/3) ... [2020-11-29 19:18:34,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1261882e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:18:34, skipping insertion in model container [2020-11-29 19:18:34,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:18:34" (3/3) ... [2020-11-29 19:18:34,798 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-11-29 19:18:34,813 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:18:34,817 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:18:34,847 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:18:34,895 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:18:34,895 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:18:34,895 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:18:34,895 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:18:34,896 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:18:34,896 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:18:34,896 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:18:34,896 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:18:34,913 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 19:18:34,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:18:34,919 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:18:34,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 19:18:34,921 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:18:34,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:18:34,929 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 19:18:34,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 19:18:34,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094650494] [2020-11-29 19:18:34,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 19:18:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:18:35,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:18:35,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 19:18:35,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 19:18:35,174 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 19:18:35,175 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 19:18:35,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 19:18:35,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:18:35 BoogieIcfgContainer [2020-11-29 19:18:35,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:18:35,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:18:35,206 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:18:35,206 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:18:35,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:18:34" (3/4) ... [2020-11-29 19:18:35,211 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 19:18:35,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:18:35,216 INFO L168 Benchmark]: Toolchain (without parser) took 1079.81 ms. Allocated memory is still 107.0 MB. Free memory was 77.4 MB in the beginning and 58.6 MB in the end (delta: 18.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:35,218 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 107.0 MB. Free memory is still 63.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:18:35,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.63 ms. Allocated memory is still 107.0 MB. Free memory was 77.1 MB in the beginning and 83.1 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:35,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.69 ms. Allocated memory is still 107.0 MB. Free memory was 83.1 MB in the beginning and 81.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:18:35,223 INFO L168 Benchmark]: Boogie Preprocessor took 16.38 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 80.9 MB in the end (delta: 823.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:35,224 INFO L168 Benchmark]: RCFGBuilder took 315.73 ms. Allocated memory is still 107.0 MB. Free memory was 80.9 MB in the beginning and 70.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:35,226 INFO L168 Benchmark]: TraceAbstraction took 430.51 ms. Allocated memory is still 107.0 MB. Free memory was 70.5 MB in the beginning and 58.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:35,227 INFO L168 Benchmark]: Witness Printer took 5.68 ms. Allocated memory is still 107.0 MB. Free memory was 58.9 MB in the beginning and 58.6 MB in the end (delta: 336.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:18:35,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 107.0 MB. Free memory is still 63.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.63 ms. Allocated memory is still 107.0 MB. Free memory was 77.1 MB in the beginning and 83.1 MB in the end (delta: -5.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.69 ms. Allocated memory is still 107.0 MB. Free memory was 83.1 MB in the beginning and 81.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.38 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 80.9 MB in the end (delta: 823.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 315.73 ms. Allocated memory is still 107.0 MB. Free memory was 80.9 MB in the beginning and 70.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 430.51 ms. Allocated memory is still 107.0 MB. Free memory was 70.5 MB in the beginning and 58.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.68 ms. Allocated memory is still 107.0 MB. Free memory was 58.9 MB in the beginning and 58.6 MB in the end (delta: 336.6 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 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L10] double x = 1e20 + 1.; [L11] float y = x; [L6] COND TRUE !(cond) [L3] __assert_fail("0", "float_double.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: 0.2s, 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 19:18:37,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:18:37,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:18:37,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:18:37,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:18:37,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:18:37,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:18:37,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:18:37,920 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:18:37,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:18:37,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:18:37,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:18:37,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:18:37,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:18:37,941 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:18:37,943 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:18:37,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:18:37,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:18:37,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:18:37,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:18:37,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:18:37,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:18:37,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:18:37,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:18:37,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:18:37,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:18:37,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:18:37,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:18:37,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:18:37,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:18:37,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:18:37,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:18:37,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:18:37,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:18:37,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:18:37,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:18:37,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:18:37,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:18:37,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:18:37,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:18:37,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:18:37,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 19:18:38,048 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:18:38,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:18:38,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:18:38,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:18:38,052 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 19:18:38,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:18:38,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:18:38,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:18:38,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:18:38,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:18:38,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:18:38,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:18:38,055 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 19:18:38,055 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 19:18:38,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:18:38,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:18:38,056 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:18:38,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:18:38,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:18:38,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 19:18:38,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:18:38,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 19:18:38,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 19:18:38,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:18:38,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:18:38,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:18:38,058 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 19:18:38,058 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 19:18:38,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:18:38,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 19:18:38,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 19:18:38,059 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_44766b89-4a81-4e79-a3c1-e90b9593e4e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2020-11-29 19:18:38,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:18:38,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:18:38,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:18:38,520 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:18:38,524 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:18:38,525 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/../../sv-benchmarks/c/float-benchs/float_double.c [2020-11-29 19:18:38,603 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data/69e6a415f/8d8904c1111749bc8c63552b826f8071/FLAG1e38ff82c [2020-11-29 19:18:39,215 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:18:39,216 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/sv-benchmarks/c/float-benchs/float_double.c [2020-11-29 19:18:39,223 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data/69e6a415f/8d8904c1111749bc8c63552b826f8071/FLAG1e38ff82c [2020-11-29 19:18:39,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/data/69e6a415f/8d8904c1111749bc8c63552b826f8071 [2020-11-29 19:18:39,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:18:39,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:18:39,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:18:39,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:18:39,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:18:39,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@513ab3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39, skipping insertion in model container [2020-11-29 19:18:39,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,612 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:18:39,627 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:18:39,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:18:39,779 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:18:39,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:18:39,861 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:18:39,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39 WrapperNode [2020-11-29 19:18:39,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:18:39,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:18:39,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:18:39,866 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:18:39,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:18:39,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:18:39,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:18:39,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:18:39,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,955 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... [2020-11-29 19:18:39,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:18:39,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:18:39,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:18:39,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:18:39,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/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 19:18:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:18:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:18:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 19:18:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:18:40,559 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:18:40,559 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-29 19:18:40,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:18:40 BoogieIcfgContainer [2020-11-29 19:18:40,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:18:40,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 19:18:40,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 19:18:40,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 19:18:40,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 07:18:39" (1/3) ... [2020-11-29 19:18:40,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef01f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:18:40, skipping insertion in model container [2020-11-29 19:18:40,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:18:39" (2/3) ... [2020-11-29 19:18:40,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef01f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 07:18:40, skipping insertion in model container [2020-11-29 19:18:40,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:18:40" (3/3) ... [2020-11-29 19:18:40,573 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-11-29 19:18:40,585 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 19:18:40,589 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 19:18:40,601 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 19:18:40,639 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 19:18:40,642 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 19:18:40,642 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 19:18:40,642 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 19:18:40,643 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 19:18:40,643 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 19:18:40,643 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 19:18:40,643 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 19:18:40,656 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-29 19:18:40,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:18:40,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 19:18:40,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-29 19:18:40,663 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 19:18:40,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:18:40,681 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-29 19:18:40,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 19:18:40,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42022620] [2020-11-29 19:18:40,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/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 19:18:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:18:40,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 19:18:40,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 19:18:41,110 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 19:18:41,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 19:18:41,194 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 19:18:41,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42022620] [2020-11-29 19:18:41,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 19:18:41,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 19:18:41,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197132205] [2020-11-29 19:18:41,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 19:18:41,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 19:18:41,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 19:18:41,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:18:41,225 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-11-29 19:18:41,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 19:18:41,264 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-29 19:18:41,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 19:18:41,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-29 19:18:41,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 19:18:41,274 INFO L225 Difference]: With dead ends: 14 [2020-11-29 19:18:41,275 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 19:18:41,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 19:18:41,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 19:18:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 19:18:41,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 19:18:41,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 19:18:41,305 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-29 19:18:41,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 19:18:41,305 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 19:18:41,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 19:18:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 19:18:41,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:18:41,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 19:18:41,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 19:18:41,574 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 19:18:41,574 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 19:18:41,575 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 19:18:41,575 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 19:18:41,575 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 19:18:41,575 INFO L270 CegarLoopResult]: At program point L13(lines 8 14) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-11-29 19:18:41,575 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-29 19:18:41,575 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-29 19:18:41,576 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 19:18:41,576 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-11-29 19:18:41,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 07:18:41 BoogieIcfgContainer [2020-11-29 19:18:41,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 19:18:41,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:18:41,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:18:41,591 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:18:41,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:18:40" (3/4) ... [2020-11-29 19:18:41,594 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:18:41,604 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 19:18:41,605 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 19:18:41,605 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 19:18:41,605 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:18:41,640 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_44766b89-4a81-4e79-a3c1-e90b9593e4e4/bin/uautomizer/witness.graphml [2020-11-29 19:18:41,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:18:41,642 INFO L168 Benchmark]: Toolchain (without parser) took 2049.16 ms. Allocated memory is still 75.5 MB. Free memory was 60.6 MB in the beginning and 47.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:41,643 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:18:41,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.57 ms. Allocated memory is still 75.5 MB. Free memory was 60.3 MB in the beginning and 59.8 MB in the end (delta: 497.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:41,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.48 ms. Allocated memory is still 75.5 MB. Free memory was 59.8 MB in the beginning and 58.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:18:41,645 INFO L168 Benchmark]: Boogie Preprocessor took 51.61 ms. Allocated memory is still 75.5 MB. Free memory was 58.3 MB in the beginning and 57.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:18:41,646 INFO L168 Benchmark]: RCFGBuilder took 604.28 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 46.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:41,647 INFO L168 Benchmark]: TraceAbstraction took 1024.34 ms. Allocated memory is still 75.5 MB. Free memory was 46.2 MB in the beginning and 50.0 MB in the end (delta: -3.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:18:41,648 INFO L168 Benchmark]: Witness Printer took 49.98 ms. Allocated memory is still 75.5 MB. Free memory was 50.0 MB in the beginning and 47.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:18:41,652 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory is still 58.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.57 ms. Allocated memory is still 75.5 MB. Free memory was 60.3 MB in the beginning and 59.8 MB in the end (delta: 497.4 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.48 ms. Allocated memory is still 75.5 MB. Free memory was 59.8 MB in the beginning and 58.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.61 ms. Allocated memory is still 75.5 MB. Free memory was 58.3 MB in the beginning and 57.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 604.28 ms. Allocated memory is still 75.5 MB. Free memory was 57.2 MB in the beginning and 46.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1024.34 ms. Allocated memory is still 75.5 MB. Free memory was 46.2 MB in the beginning and 50.0 MB in the end (delta: -3.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 49.98 ms. Allocated memory is still 75.5 MB. Free memory was 50.0 MB in the beginning and 47.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 6 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 4 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...