./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float_range.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_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/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 188b463bddf1d83ecad723e2243b3ab1810c254e ................................................................................................................................................................................................................................... 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_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/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 188b463bddf1d83ecad723e2243b3ab1810c254e ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:19:00,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:00,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:00,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:00,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:00,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:00,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:00,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:00,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:00,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:00,647 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:00,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:00,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:00,651 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:00,652 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:00,653 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:00,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:00,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:00,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:00,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:00,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:00,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:00,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:00,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:00,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:00,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:00,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:00,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:00,671 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:00,672 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:00,673 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:00,674 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:00,674 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:00,675 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:00,677 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:00,677 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:00,678 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:00,678 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:00,679 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:00,680 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:00,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:00,682 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:19:00,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:00,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:00,707 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:00,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:00,708 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:00,708 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:00,708 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:00,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:00,709 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:00,709 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:00,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:00,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:00,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:00,710 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:00,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:00,710 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:00,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:00,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:00,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:00,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:00,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:00,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:00,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:00,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:00,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:00,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:00,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:19:00,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:00,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:00,714 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_b4fa7ae0-59e6-4c42-bc54-19293696b803/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188b463bddf1d83ecad723e2243b3ab1810c254e [2020-11-28 03:19:00,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:00,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:00,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:00,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:00,989 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:00,990 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2020-11-28 03:19:01,066 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data/dccefa9a1/7b94c3d15f914831aac0914aa712702b/FLAG191f37624 [2020-11-28 03:19:01,517 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:01,517 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/sv-benchmarks/c/float-benchs/nan_float_range.c [2020-11-28 03:19:01,524 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data/dccefa9a1/7b94c3d15f914831aac0914aa712702b/FLAG191f37624 [2020-11-28 03:19:01,937 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data/dccefa9a1/7b94c3d15f914831aac0914aa712702b [2020-11-28 03:19:01,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:01,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:01,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:01,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:01,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:01,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:01" (1/1) ... [2020-11-28 03:19:01,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af2f4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:01, skipping insertion in model container [2020-11-28 03:19:01,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:01" (1/1) ... [2020-11-28 03:19:01,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:01,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:02,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:02,132 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:02,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:02,171 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:02,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02 WrapperNode [2020-11-28 03:19:02,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:02,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:02,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:02,173 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:02,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:02,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:02,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:02,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:02,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... [2020-11-28 03:19:02,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:02,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:02,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:02,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:02,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/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 [2020-11-28 03:19:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:02,483 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:02,484 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:19:02,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:02 BoogieIcfgContainer [2020-11-28 03:19:02,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:02,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:02,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:02,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:02,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:01" (1/3) ... [2020-11-28 03:19:02,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518f602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:02, skipping insertion in model container [2020-11-28 03:19:02,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:02" (2/3) ... [2020-11-28 03:19:02,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518f602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:02, skipping insertion in model container [2020-11-28 03:19:02,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:02" (3/3) ... [2020-11-28 03:19:02,508 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2020-11-28 03:19:02,519 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:02,524 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:19:02,536 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:19:02,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:02,559 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:02,560 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:02,560 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:02,560 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:02,560 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:02,560 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:02,561 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:02,573 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-28 03:19:02,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:19:02,578 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:02,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:19:02,580 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:02,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:02,598 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-11-28 03:19:02,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:02,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250865135] [2020-11-28 03:19:02,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:02,747 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:02,767 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:02,790 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:02,791 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:19:02,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:19:02,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:02 BoogieIcfgContainer [2020-11-28 03:19:02,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:02,818 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:02,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:02,818 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:02,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:02" (3/4) ... [2020-11-28 03:19:02,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:19:02,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:02,826 INFO L168 Benchmark]: Toolchain (without parser) took 882.70 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 69.0 MB in the end (delta: 22.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:02,828 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:02,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.37 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 94.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:02,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.22 ms. Allocated memory is still 117.4 MB. Free memory was 94.2 MB in the beginning and 93.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:02,833 INFO L168 Benchmark]: Boogie Preprocessor took 17.80 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 91.8 MB in the end (delta: 857.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:02,834 INFO L168 Benchmark]: RCFGBuilder took 261.83 ms. Allocated memory is still 117.4 MB. Free memory was 91.8 MB in the beginning and 81.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:02,835 INFO L168 Benchmark]: TraceAbstraction took 328.09 ms. Allocated memory is still 117.4 MB. Free memory was 81.1 MB in the beginning and 69.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:02,837 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 117.4 MB. Free memory was 69.3 MB in the beginning and 69.0 MB in the end (delta: 272.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:02,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 86.0 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 230.37 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 94.2 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.22 ms. Allocated memory is still 117.4 MB. Free memory was 94.2 MB in the beginning and 93.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.80 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 91.8 MB in the end (delta: 857.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 261.83 ms. Allocated memory is still 117.4 MB. Free memory was 91.8 MB in the beginning and 81.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 328.09 ms. Allocated memory is still 117.4 MB. Free memory was 81.1 MB in the beginning and 69.4 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.73 ms. Allocated memory is still 117.4 MB. Free memory was 69.3 MB in the beginning and 69.0 MB in the end (delta: 272.7 kB). Peak memory consumption was 2.1 MB. 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 someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] COND TRUE x >= -1e10 && x <= 1e10 [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_float_range.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 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=11occurred 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, 5 NumberOfCodeBlocks, 5 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 [2020-11-28 03:19:05,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:05,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:05,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:05,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:05,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:05,445 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:05,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:05,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:05,458 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:05,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:05,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:05,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:05,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:05,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:05,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:05,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:05,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:05,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:05,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:05,493 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:05,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:05,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:05,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:05,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:05,504 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:05,504 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:05,505 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:05,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:05,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:05,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:05,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:05,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:05,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:05,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:05,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:05,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:05,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:05,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:05,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:05,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:05,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:19:05,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:05,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:05,556 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:05,557 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:05,557 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:05,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:05,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:05,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:05,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:05,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:19:05,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:19:05,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:19:05,560 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:19:05,560 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:19:05,560 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:05,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:05,561 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:05,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:19:05,561 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:05,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:05,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:19:05,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:19:05,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:19:05,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:05,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:19:05,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:19:05,563 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:19:05,563 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:19:05,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:19:05,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:05,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:19:05,564 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_b4fa7ae0-59e6-4c42-bc54-19293696b803/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188b463bddf1d83ecad723e2243b3ab1810c254e [2020-11-28 03:19:06,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:06,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:06,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:06,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:06,043 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:06,044 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2020-11-28 03:19:06,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data/45e8b52e4/190c109bd7194b21b9edb46a72828fea/FLAGea25414ae [2020-11-28 03:19:06,718 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:06,718 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/sv-benchmarks/c/float-benchs/nan_float_range.c [2020-11-28 03:19:06,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data/45e8b52e4/190c109bd7194b21b9edb46a72828fea/FLAGea25414ae [2020-11-28 03:19:07,083 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/data/45e8b52e4/190c109bd7194b21b9edb46a72828fea [2020-11-28 03:19:07,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:07,087 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:07,089 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:07,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:07,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:07,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a0badd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07, skipping insertion in model container [2020-11-28 03:19:07,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:07,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:07,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:07,279 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:07,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:07,332 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:07,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07 WrapperNode [2020-11-28 03:19:07,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:07,334 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:07,334 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:07,334 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:07,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:07,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:07,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:07,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:07,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... [2020-11-28 03:19:07,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:07,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:07,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:07,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:07,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/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 [2020-11-28 03:19:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:19:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:07,935 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:07,936 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:19:07,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:07 BoogieIcfgContainer [2020-11-28 03:19:07,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:07,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:19:07,941 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:19:07,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:19:07,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:19:07" (1/3) ... [2020-11-28 03:19:07,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef6a0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:07, skipping insertion in model container [2020-11-28 03:19:07,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:07" (2/3) ... [2020-11-28 03:19:07,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef6a0a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:19:07, skipping insertion in model container [2020-11-28 03:19:07,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:07" (3/3) ... [2020-11-28 03:19:07,949 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2020-11-28 03:19:07,960 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:19:07,964 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:19:07,975 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:19:08,009 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:19:08,009 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:19:08,010 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:19:08,010 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:08,010 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:08,010 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:19:08,010 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:08,011 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:19:08,025 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-11-28 03:19:08,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:19:08,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:19:08,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:19:08,034 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:19:08,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:08,041 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-11-28 03:19:08,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:19:08,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [958163491] [2020-11-28 03:19:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/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 [2020-11-28 03:19:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:08,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:19:08,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:08,221 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:19:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:08,312 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:19:08,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:19:08,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [958163491] [2020-11-28 03:19:08,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:19:08,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 03:19:08,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076748876] [2020-11-28 03:19:08,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:19:08,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:19:08,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:19:08,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:19:08,396 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2020-11-28 03:19:08,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:19:08,423 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-28 03:19:08,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:19:08,426 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 03:19:08,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:19:08,434 INFO L225 Difference]: With dead ends: 19 [2020-11-28 03:19:08,434 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:19:08,437 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:19:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:19:08,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:19:08,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:19:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:19:08,457 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-28 03:19:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:19:08,457 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:08,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:19:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:08,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:19:08,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:19:08,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:19:08,715 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:19:08,715 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:19:08,715 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:19:08,715 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:19:08,715 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:19:08,716 INFO L277 CegarLoopResult]: At program point L18(lines 10 19) the Hoare annotation is: true [2020-11-28 03:19:08,716 INFO L274 CegarLoopResult]: For program point L15(lines 15 17) no Hoare annotation was computed. [2020-11-28 03:19:08,716 INFO L277 CegarLoopResult]: At program point L15-1(lines 15 17) the Hoare annotation is: true [2020-11-28 03:19:08,716 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-11-28 03:19:08,716 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-11-28 03:19:08,716 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:19:08,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:19:08 BoogieIcfgContainer [2020-11-28 03:19:08,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:19:08,724 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:08,724 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:08,724 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:08,725 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:07" (3/4) ... [2020-11-28 03:19:08,733 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:19:08,747 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:19:08,748 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:19:08,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:19:08,749 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:19:08,787 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4fa7ae0-59e6-4c42-bc54-19293696b803/bin/uautomizer/witness.graphml [2020-11-28 03:19:08,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:08,789 INFO L168 Benchmark]: Toolchain (without parser) took 1700.89 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 56.1 MB in the end (delta: -17.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,790 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 41.5 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:08,791 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.09 ms. Allocated memory is still 58.7 MB. Free memory was 38.1 MB in the beginning and 42.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.52 ms. Allocated memory is still 58.7 MB. Free memory was 42.9 MB in the beginning and 41.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,792 INFO L168 Benchmark]: Boogie Preprocessor took 23.09 ms. Allocated memory is still 58.7 MB. Free memory was 41.6 MB in the beginning and 40.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:08,793 INFO L168 Benchmark]: RCFGBuilder took 537.85 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 29.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,794 INFO L168 Benchmark]: TraceAbstraction took 782.78 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 29.5 MB in the beginning and 37.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,795 INFO L168 Benchmark]: Witness Printer took 63.21 ms. Allocated memory is still 73.4 MB. Free memory was 37.7 MB in the beginning and 56.1 MB in the end (delta: -18.4 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:08,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 41.5 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.09 ms. Allocated memory is still 58.7 MB. Free memory was 38.1 MB in the beginning and 42.9 MB in the end (delta: -4.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.52 ms. Allocated memory is still 58.7 MB. Free memory was 42.9 MB in the beginning and 41.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.09 ms. Allocated memory is still 58.7 MB. Free memory was 41.6 MB in the beginning and 40.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 537.85 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 29.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 782.78 ms. Allocated memory was 58.7 MB in the beginning and 73.4 MB in the end (delta: 14.7 MB). Free memory was 29.5 MB in the beginning and 37.7 MB in the end (delta: -8.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Witness Printer took 63.21 ms. Allocated memory is still 73.4 MB. Free memory was 37.7 MB in the beginning and 56.1 MB in the end (delta: -18.4 MB). Peak memory consumption was 2.5 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 6 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 6 NumberOfNonLiveVariables, 29 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...