./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 ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/nan_float_range.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --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=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/nan_float_range.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux --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-ee8e70e [2020-10-24 14:39:27,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:39:27,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:39:27,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:39:27,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:39:27,812 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:39:27,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:39:27,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:39:27,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:39:27,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:39:27,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:39:27,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:39:27,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:39:27,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:39:27,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:39:27,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:39:27,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:39:27,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:39:27,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:39:27,871 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:39:27,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:39:27,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:39:27,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:39:27,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:39:27,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:39:27,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:39:27,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:39:27,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:39:27,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:39:27,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:39:27,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:39:27,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:39:27,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:39:27,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:39:27,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:39:27,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:39:27,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:39:27,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:39:27,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:39:27,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:39:27,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:39:27,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:39:27,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:39:27,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:39:27,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:39:27,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:39:27,946 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:39:27,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:39:27,946 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:39:27,947 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:39:27,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:39:27,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:39:27,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:39:27,948 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:39:27,948 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:39:27,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:39:27,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:39:27,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:39:27,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:39:27,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:39:27,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:39:27,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:39:27,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:39:27,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:39:27,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:39:27,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:39:27,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:39:27,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:39:27,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:39:27,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:39:27,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:39:27,952 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:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188b463bddf1d83ecad723e2243b3ab1810c254e [2020-10-24 14:39:28,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:39:28,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:39:28,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:39:28,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:39:28,396 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:39:28,398 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float_range.c [2020-10-24 14:39:28,491 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90db3282d/810e3805cd2e45bfa09a17b155dc291a/FLAG7fad7b5aa [2020-10-24 14:39:29,281 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:39:29,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c [2020-10-24 14:39:29,290 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90db3282d/810e3805cd2e45bfa09a17b155dc291a/FLAG7fad7b5aa [2020-10-24 14:39:29,649 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/90db3282d/810e3805cd2e45bfa09a17b155dc291a [2020-10-24 14:39:29,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:39:29,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:39:29,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:29,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:39:29,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:39:29,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:29,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bd5f84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29, skipping insertion in model container [2020-10-24 14:39:29,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:29,688 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:39:29,708 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:39:29,943 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:29,953 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:39:29,970 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:29,987 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:39:29,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29 WrapperNode [2020-10-24 14:39:29,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:29,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:29,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:39:29,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:39:30,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:30,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:39:30,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:39:30,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:39:30,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,042 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... [2020-10-24 14:39:30,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:39:30,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:39:30,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:39:30,054 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:39:30,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 14:39:30,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:39:30,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:39:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:39:30,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:39:30,352 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:39:30,352 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:39:30,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:30 BoogieIcfgContainer [2020-10-24 14:39:30,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:39:30,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:39:30,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:39:30,360 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:39:30,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:39:29" (1/3) ... [2020-10-24 14:39:30,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfdc7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:30, skipping insertion in model container [2020-10-24 14:39:30,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:29" (2/3) ... [2020-10-24 14:39:30,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dfdc7ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:30, skipping insertion in model container [2020-10-24 14:39:30,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:30" (3/3) ... [2020-10-24 14:39:30,364 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2020-10-24 14:39:30,377 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:39:30,382 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:39:30,396 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:39:30,428 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:39:30,428 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:39:30,428 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:39:30,428 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:39:30,429 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:39:30,429 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:39:30,429 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:39:30,429 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:39:30,445 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-10-24 14:39:30,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:39:30,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:39:30,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:39:30,452 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:39:30,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:39:30,459 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-10-24 14:39:30,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:39:30,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354507704] [2020-10-24 14:39:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:39:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:39:30,613 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:39:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:39:30,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:39:30,661 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:39:30,663 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:39:30,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:39:30,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:39:30 BoogieIcfgContainer [2020-10-24 14:39:30,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:39:30,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:39:30,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:39:30,700 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:39:30,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:30" (3/4) ... [2020-10-24 14:39:30,714 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:39:30,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:39:30,717 INFO L168 Benchmark]: Toolchain (without parser) took 1060.44 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 30.4 MB in the beginning and 47.1 MB in the end (delta: -16.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:30,718 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 35.7 MB. Free memory was 18.2 MB in the beginning and 18.2 MB in the end (delta: 19.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:30,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.98 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 34.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:30,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.09 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 32.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:30,722 INFO L168 Benchmark]: Boogie Preprocessor took 24.13 ms. Allocated memory is still 52.4 MB. Free memory was 32.6 MB in the beginning and 31.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:30,723 INFO L168 Benchmark]: RCFGBuilder took 300.17 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 34.9 MB in the end (delta: -3.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:30,724 INFO L168 Benchmark]: TraceAbstraction took 336.78 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 22.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:30,725 INFO L168 Benchmark]: Witness Printer took 14.36 ms. Allocated memory is still 62.9 MB. Free memory was 47.4 MB in the beginning and 47.1 MB in the end (delta: 321.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:30,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 35.7 MB. Free memory was 18.2 MB in the beginning and 18.2 MB in the end (delta: 19.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.98 ms. Allocated memory is still 52.4 MB. Free memory was 29.8 MB in the beginning and 34.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.09 ms. Allocated memory is still 52.4 MB. Free memory was 33.9 MB in the beginning and 32.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.13 ms. Allocated memory is still 52.4 MB. Free memory was 32.6 MB in the beginning and 31.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 300.17 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 34.9 MB in the end (delta: -3.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 336.78 ms. Allocated memory is still 52.4 MB. Free memory was 34.5 MB in the beginning and 22.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 14.36 ms. Allocated memory is still 62.9 MB. Free memory was 47.4 MB in the beginning and 47.1 MB in the end (delta: 321.9 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 someBinaryDOUBLE_SMTComparisonOperation at line 15, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 16. 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-ee8e70e [2020-10-24 14:39:33,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:39:33,677 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:39:33,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:39:33,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:39:33,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:39:33,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:39:33,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:39:33,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:39:33,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:39:33,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:39:33,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:39:33,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:39:33,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:39:33,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:39:33,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:39:33,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:39:33,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:39:33,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:39:33,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:39:33,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:39:33,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:39:33,764 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:39:33,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:39:33,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:39:33,769 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:39:33,769 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:39:33,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:39:33,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:39:33,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:39:33,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:39:33,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:39:33,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:39:33,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:39:33,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:39:33,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:39:33,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:39:33,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:39:33,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:39:33,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:39:33,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:39:33,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:39:33,812 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:39:33,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:39:33,815 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:39:33,815 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:39:33,815 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:39:33,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:39:33,816 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:39:33,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:39:33,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:39:33,817 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:39:33,817 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:39:33,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:39:33,817 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:39:33,818 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:39:33,818 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:39:33,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:39:33,818 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:39:33,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:39:33,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:39:33,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:39:33,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:39:33,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:39:33,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:39:33,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:39:33,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:39:33,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:39:33,821 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:39:33,821 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:39:33,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:39:33,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:39:33,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:39:33,822 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:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 188b463bddf1d83ecad723e2243b3ab1810c254e [2020-10-24 14:39:34,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:39:34,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:39:34,307 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:39:34,309 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:39:34,316 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:39:34,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float_range.c [2020-10-24 14:39:34,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cff410751/1cdc6ab8ffc64e408dfa37bbcf3b739c/FLAGb54d7b8ba [2020-10-24 14:39:35,117 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:39:35,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float_range.c [2020-10-24 14:39:35,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cff410751/1cdc6ab8ffc64e408dfa37bbcf3b739c/FLAGb54d7b8ba [2020-10-24 14:39:35,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cff410751/1cdc6ab8ffc64e408dfa37bbcf3b739c [2020-10-24 14:39:35,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:39:35,491 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:39:35,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:35,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:39:35,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:39:35,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3beb7a51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35, skipping insertion in model container [2020-10-24 14:39:35,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,541 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:39:35,581 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:39:35,746 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:35,770 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:39:35,794 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:35,816 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:39:35,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35 WrapperNode [2020-10-24 14:39:35,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:35,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:35,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:39:35,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:39:35,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:35,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:39:35,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:39:35,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:39:35,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,886 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... [2020-10-24 14:39:35,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:39:35,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:39:35,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:39:35,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:39:35,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 14:39:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:39:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:39:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:39:35,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:39:35,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:39:36,447 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:39:36,448 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:39:36,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:36 BoogieIcfgContainer [2020-10-24 14:39:36,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:39:36,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:39:36,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:39:36,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:39:36,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:39:35" (1/3) ... [2020-10-24 14:39:36,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb6b697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:36, skipping insertion in model container [2020-10-24 14:39:36,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:35" (2/3) ... [2020-10-24 14:39:36,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb6b697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:36, skipping insertion in model container [2020-10-24 14:39:36,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:36" (3/3) ... [2020-10-24 14:39:36,462 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2020-10-24 14:39:36,477 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:39:36,483 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:39:36,511 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:39:36,586 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:39:36,589 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:39:36,589 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:39:36,590 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:39:36,590 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:39:36,590 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:39:36,591 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:39:36,591 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:39:36,619 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-10-24 14:39:36,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-24 14:39:36,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:39:36,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-24 14:39:36,630 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:39:36,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:39:36,640 INFO L82 PathProgramCache]: Analyzing trace with hash 889510699, now seen corresponding path program 1 times [2020-10-24 14:39:36,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:39:36,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1223792482] [2020-10-24 14:39:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 14:39:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:39:36,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:39:36,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:39:38,585 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 29 DAG size of output: 17 [2020-10-24 14:39:39,058 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-10-24 14:39:39,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:39:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:39:39,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:39:40,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 14:39:40,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1223792482] [2020-10-24 14:39:40,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:39:40,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 14:39:40,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669722347] [2020-10-24 14:39:41,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 14:39:41,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:39:41,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 14:39:41,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-24 14:39:41,023 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 8 states. [2020-10-24 14:39:42,330 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-10-24 14:39:42,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:39:42,690 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2020-10-24 14:39:42,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 14:39:42,697 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2020-10-24 14:39:42,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:39:42,704 INFO L225 Difference]: With dead ends: 25 [2020-10-24 14:39:42,704 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:39:42,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-24 14:39:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:39:42,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:39:42,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:39:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:39:42,738 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-10-24 14:39:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:39:42,738 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:39:42,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 14:39:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:39:42,739 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:39:42,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:39:42,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:39:42,991 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:39:42,992 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-24 14:39:42,992 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2020-10-24 14:39:42,992 INFO L277 CegarLoopResult]: At program point L15-3(lines 15 17) the Hoare annotation is: true [2020-10-24 14:39:42,992 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 14:39:42,992 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:39:42,993 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:39:42,993 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:39:42,993 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 14:39:42,993 INFO L277 CegarLoopResult]: At program point L18(lines 10 19) the Hoare annotation is: true [2020-10-24 14:39:42,994 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-24 14:39:42,994 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-24 14:39:43,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:39:43 BoogieIcfgContainer [2020-10-24 14:39:43,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:39:43,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:39:43,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:39:43,005 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:39:43,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:36" (3/4) ... [2020-10-24 14:39:43,009 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:39:43,020 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 14:39:43,021 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:39:43,021 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 14:39:43,022 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:39:43,069 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:39:43,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:39:43,075 INFO L168 Benchmark]: Toolchain (without parser) took 7590.41 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.8 MB in the beginning and 27.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 1.3 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:43,076 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 41.9 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 18.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:43,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.35 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.2 MB in the beginning and 33.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:43,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.51 ms. Allocated memory is still 50.3 MB. Free memory was 33.6 MB in the beginning and 32.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:43,078 INFO L168 Benchmark]: Boogie Preprocessor took 30.37 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 31.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:43,079 INFO L168 Benchmark]: RCFGBuilder took 554.66 ms. Allocated memory is still 50.3 MB. Free memory was 31.0 MB in the beginning and 29.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:43,080 INFO L168 Benchmark]: TraceAbstraction took 6550.90 ms. Allocated memory is still 50.3 MB. Free memory was 28.6 MB in the beginning and 29.8 MB in the end (delta: -1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:43,080 INFO L168 Benchmark]: Witness Printer took 68.14 ms. Allocated memory is still 50.3 MB. Free memory was 29.8 MB in the beginning and 27.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:43,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 41.9 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 18.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 321.35 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.2 MB in the beginning and 33.6 MB in the end (delta: -15.5 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.51 ms. Allocated memory is still 50.3 MB. Free memory was 33.6 MB in the beginning and 32.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.37 ms. Allocated memory is still 50.3 MB. Free memory was 32.1 MB in the beginning and 31.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 554.66 ms. Allocated memory is still 50.3 MB. Free memory was 31.0 MB in the beginning and 29.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6550.90 ms. Allocated memory is still 50.3 MB. Free memory was 28.6 MB in the beginning and 29.8 MB in the end (delta: -1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 68.14 ms. Allocated memory is still 50.3 MB. Free memory was 29.8 MB in the beginning and 27.2 MB in the end (delta: 2.7 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: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 21 SDslu, 10 SDs, 0 SdLazy, 9 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 8 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, 4.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 2 QuantifiedInterpolants, 425 SizeOfPredicates, 6 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 5 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...