./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_double_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_double_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 001d34650580de0e8f1d5d4a40932476caadcd60 ................................................................................................................................................................................................................................... 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_double_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 001d34650580de0e8f1d5d4a40932476caadcd60 ....................................................................................................................................................................................................................................................................................... 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 14:39:14,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:39:14,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:39:14,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:39:14,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:39:14,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:39:14,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:39:14,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:39:14,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:39:14,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:39:14,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:39:14,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:39:14,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:39:14,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:39:14,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:39:14,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:39:14,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:39:14,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:39:14,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:39:14,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:39:14,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:39:14,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:39:15,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:39:15,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:39:15,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:39:15,010 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:39:15,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:39:15,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:39:15,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:39:15,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:39:15,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:39:15,018 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:39:15,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:39:15,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:39:15,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:39:15,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:39:15,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:39:15,036 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:39:15,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:39:15,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:39:15,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:39:15,043 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 14:39:15,101 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:39:15,102 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:39:15,106 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:39:15,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:39:15,107 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:39:15,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:39:15,107 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:39:15,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:39:15,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:39:15,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:39:15,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:39:15,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:39:15,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:39:15,111 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:39:15,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:39:15,111 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:39:15,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:39:15,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:39:15,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:39:15,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:39:15,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:39:15,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:39:15,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:39:15,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:39:15,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:39:15,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:39:15,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:39:15,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:39:15,115 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:39:15,115 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 001d34650580de0e8f1d5d4a40932476caadcd60 [2020-10-24 14:39:15,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:39:15,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:39:15,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:39:15,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:39:15,678 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:39:15,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double_range.c [2020-10-24 14:39:15,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13232fdfc/28ab969e0da84d0dae835326c120c788/FLAG200c196d5 [2020-10-24 14:39:16,446 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:39:16,447 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double_range.c [2020-10-24 14:39:16,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13232fdfc/28ab969e0da84d0dae835326c120c788/FLAG200c196d5 [2020-10-24 14:39:16,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13232fdfc/28ab969e0da84d0dae835326c120c788 [2020-10-24 14:39:16,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:39:16,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:39:16,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:16,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:39:16,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:39:16,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3761806a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16, skipping insertion in model container [2020-10-24 14:39:16,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,836 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:39:16,852 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:39:17,061 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:17,074 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:39:17,091 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:17,109 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:39:17,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17 WrapperNode [2020-10-24 14:39:17,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:17,111 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:17,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:39:17,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:39:17,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:17,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:39:17,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:39:17,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:39:17,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (1/1) ... [2020-10-24 14:39:17,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:39:17,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:39:17,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:39:17,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:39:17,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (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 14:39:17,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:39:17,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:39:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:39:17,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:39:17,529 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:39:17,530 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:39:17,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:17 BoogieIcfgContainer [2020-10-24 14:39:17,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:39:17,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:39:17,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:39:17,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:39:17,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:39:16" (1/3) ... [2020-10-24 14:39:17,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc6ce39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:17, skipping insertion in model container [2020-10-24 14:39:17,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:17" (2/3) ... [2020-10-24 14:39:17,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc6ce39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:17, skipping insertion in model container [2020-10-24 14:39:17,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:17" (3/3) ... [2020-10-24 14:39:17,544 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2020-10-24 14:39:17,561 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:39:17,567 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:39:17,586 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:39:17,657 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:39:17,658 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:39:17,661 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:39:17,662 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:39:17,662 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:39:17,662 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:39:17,662 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:39:17,663 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:39:17,700 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-10-24 14:39:17,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-24 14:39:17,716 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:39:17,718 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-24 14:39:17,719 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:39:17,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:39:17,728 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-10-24 14:39:17,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:39:17,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104621948] [2020-10-24 14:39:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:39:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:39:17,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:39:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:39:17,995 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:39:18,023 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:39:18,024 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:39:18,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:39:18,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:39:18 BoogieIcfgContainer [2020-10-24 14:39:18,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:39:18,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:39:18,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:39:18,062 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:39:18,063 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:17" (3/4) ... [2020-10-24 14:39:18,068 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:39:18,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:39:18,072 INFO L168 Benchmark]: Toolchain (without parser) took 1263.32 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 30.5 MB in the beginning and 46.9 MB in the end (delta: -16.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:18,073 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 37.7 MB. Free memory was 20.1 MB in the beginning and 20.0 MB in the end (delta: 26.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:18,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.70 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: -4.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:18,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.66 ms. Allocated memory is still 52.4 MB. Free memory was 34.0 MB in the beginning and 32.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:18,077 INFO L168 Benchmark]: Boogie Preprocessor took 24.86 ms. Allocated memory is still 52.4 MB. Free memory was 32.7 MB in the beginning and 31.7 MB in the end (delta: 929.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:18,078 INFO L168 Benchmark]: RCFGBuilder took 354.48 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 34.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:18,079 INFO L168 Benchmark]: TraceAbstraction took 526.47 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 34.4 MB in the beginning and 47.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:18,080 INFO L168 Benchmark]: Witness Printer took 7.00 ms. Allocated memory is still 62.9 MB. Free memory was 47.2 MB in the beginning and 46.9 MB in the end (delta: 290.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:18,086 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 37.7 MB. Free memory was 20.1 MB in the beginning and 20.0 MB in the end (delta: 26.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.70 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: -4.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.66 ms. Allocated memory is still 52.4 MB. Free memory was 34.0 MB in the beginning and 32.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.86 ms. Allocated memory is still 52.4 MB. Free memory was 32.7 MB in the beginning and 31.7 MB in the end (delta: 929.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 354.48 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 34.8 MB in the end (delta: -3.2 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 526.47 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 34.4 MB in the beginning and 47.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Witness Printer took 7.00 ms. Allocated memory is still 62.9 MB. Free memory was 47.2 MB in the beginning and 46.9 MB in the end (delta: 290.5 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. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] COND TRUE x >= -1e307 && x <= 1e307 [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_double_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: 0.3s, 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 14:39:20,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:39:20,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:39:20,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:39:20,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:39:20,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:39:20,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:39:20,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:39:20,948 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:39:20,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:39:20,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:39:20,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:39:20,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:39:20,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:39:20,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:39:20,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:39:20,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:39:20,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:39:20,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:39:20,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:39:20,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:39:20,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:39:20,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:39:20,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:39:20,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:39:20,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:39:20,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:39:20,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:39:20,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:39:20,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:39:20,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:39:20,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:39:20,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:39:20,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:39:20,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:39:20,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:39:20,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:39:20,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:39:21,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:39:21,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:39:21,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:39:21,003 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 14:39:21,038 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:39:21,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:39:21,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:39:21,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:39:21,044 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:39:21,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:39:21,044 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:39:21,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:39:21,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:39:21,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:39:21,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:39:21,047 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:39:21,047 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:39:21,047 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:39:21,048 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:39:21,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:39:21,048 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:39:21,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:39:21,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:39:21,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:39:21,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:39:21,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:39:21,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:39:21,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:39:21,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:39:21,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:39:21,051 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:39:21,051 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:39:21,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:39:21,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:39:21,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:39:21,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 001d34650580de0e8f1d5d4a40932476caadcd60 [2020-10-24 14:39:21,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:39:21,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:39:21,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:39:21,599 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:39:21,599 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:39:21,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double_range.c [2020-10-24 14:39:21,707 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/774bf91d1/a4ce1aeec73e4772b7e779a528341426/FLAGa21c90c6a [2020-10-24 14:39:22,328 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:39:22,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double_range.c [2020-10-24 14:39:22,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/774bf91d1/a4ce1aeec73e4772b7e779a528341426/FLAGa21c90c6a [2020-10-24 14:39:22,356 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/774bf91d1/a4ce1aeec73e4772b7e779a528341426 [2020-10-24 14:39:22,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:39:22,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:39:22,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:22,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:39:22,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:39:22,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e06982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22, skipping insertion in model container [2020-10-24 14:39:22,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,445 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:39:22,478 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:39:22,744 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:22,784 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:39:22,812 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:22,841 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:39:22,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22 WrapperNode [2020-10-24 14:39:22,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:22,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:22,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:39:22,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:39:22,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:22,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:39:22,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:39:22,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:39:22,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (1/1) ... [2020-10-24 14:39:22,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:39:22,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:39:22,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:39:22,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:39:22,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (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 14:39:23,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 14:39:23,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:39:23,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:39:23,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:39:23,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:39:23,335 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:39:23,335 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:39:23,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:23 BoogieIcfgContainer [2020-10-24 14:39:23,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:39:23,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:39:23,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:39:23,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:39:23,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:39:22" (1/3) ... [2020-10-24 14:39:23,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c9f28a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:23, skipping insertion in model container [2020-10-24 14:39:23,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:22" (2/3) ... [2020-10-24 14:39:23,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c9f28a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:23, skipping insertion in model container [2020-10-24 14:39:23,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:23" (3/3) ... [2020-10-24 14:39:23,351 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double_range.c [2020-10-24 14:39:23,365 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:39:23,370 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:39:23,385 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:39:23,414 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:39:23,414 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:39:23,415 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:39:23,415 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:39:23,415 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:39:23,415 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:39:23,416 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:39:23,416 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:39:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-10-24 14:39:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-24 14:39:23,436 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:39:23,437 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-24 14:39:23,438 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:39:23,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:39:23,445 INFO L82 PathProgramCache]: Analyzing trace with hash 889510699, now seen corresponding path program 1 times [2020-10-24 14:39:23,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:39:23,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9587045] [2020-10-24 14:39:23,460 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 14:39:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 14:39:23,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-24 14:39:23,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 14:39:23,840 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 15 [2020-10-24 14:39:23,858 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 14:39:23,929 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 14:39:23,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 14:39:23,992 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 14:39:23,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9587045] [2020-10-24 14:39:23,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 14:39:23,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-10-24 14:39:23,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904976484] [2020-10-24 14:39:24,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 14:39:24,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 14:39:24,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 14:39:24,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-24 14:39:24,022 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2020-10-24 14:39:24,290 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 21 [2020-10-24 14:39:24,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 14:39:24,307 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-10-24 14:39:24,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 14:39:24,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-10-24 14:39:24,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 14:39:24,320 INFO L225 Difference]: With dead ends: 20 [2020-10-24 14:39:24,322 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 14:39:24,326 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-24 14:39:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 14:39:24,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 14:39:24,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 14:39:24,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 14:39:24,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-10-24 14:39:24,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 14:39:24,354 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 14:39:24,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 14:39:24,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 14:39:24,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 14:39:24,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:39:24,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 14:39:24,599 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 14:39:24,600 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-24 14:39:24,600 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2020-10-24 14:39:24,600 INFO L277 CegarLoopResult]: At program point L15-3(lines 15 17) the Hoare annotation is: true [2020-10-24 14:39:24,600 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 14:39:24,600 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 14:39:24,600 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 14:39:24,601 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 14:39:24,601 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 14:39:24,601 INFO L277 CegarLoopResult]: At program point L18(lines 10 19) the Hoare annotation is: true [2020-10-24 14:39:24,601 INFO L274 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-10-24 14:39:24,601 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-24 14:39:24,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:39:24 BoogieIcfgContainer [2020-10-24 14:39:24,610 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:39:24,611 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:39:24,611 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:39:24,612 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:39:24,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:23" (3/4) ... [2020-10-24 14:39:24,618 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 14:39:24,632 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 14:39:24,633 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-24 14:39:24,633 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 14:39:24,634 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 14:39:24,682 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:39:24,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:39:24,685 INFO L168 Benchmark]: Toolchain (without parser) took 2323.02 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 20.6 MB in the beginning and 27.4 MB in the end (delta: -6.8 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:24,686 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 44.0 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:24,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.68 ms. Allocated memory is still 54.5 MB. Free memory was 39.3 MB in the beginning and 29.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:24,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.18 ms. Allocated memory is still 54.5 MB. Free memory was 29.4 MB in the beginning and 27.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:24,688 INFO L168 Benchmark]: Boogie Preprocessor took 60.63 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 26.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:24,689 INFO L168 Benchmark]: RCFGBuilder took 360.51 ms. Allocated memory is still 54.5 MB. Free memory was 26.6 MB in the beginning and 29.0 MB in the end (delta: -2.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:24,689 INFO L168 Benchmark]: TraceAbstraction took 1270.35 ms. Allocated memory is still 54.5 MB. Free memory was 28.8 MB in the beginning and 30.1 MB in the end (delta: -1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:24,690 INFO L168 Benchmark]: Witness Printer took 71.47 ms. Allocated memory is still 54.5 MB. Free memory was 29.8 MB in the beginning and 27.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:24,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 44.0 MB. Free memory was 21.8 MB in the beginning and 21.8 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 451.68 ms. Allocated memory is still 54.5 MB. Free memory was 39.3 MB in the beginning and 29.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.18 ms. Allocated memory is still 54.5 MB. Free memory was 29.4 MB in the beginning and 27.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.63 ms. Allocated memory is still 54.5 MB. Free memory was 27.9 MB in the beginning and 26.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 360.51 ms. Allocated memory is still 54.5 MB. Free memory was 26.6 MB in the beginning and 29.0 MB in the end (delta: -2.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1270.35 ms. Allocated memory is still 54.5 MB. Free memory was 28.8 MB in the beginning and 30.1 MB in the end (delta: -1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 71.47 ms. Allocated memory is still 54.5 MB. Free memory was 29.8 MB in the beginning and 27.4 MB in the end (delta: 2.4 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: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 13 SDslu, 9 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s 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, 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, 0.4s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 1 QuantifiedInterpolants, 260 SizeOfPredicates, 5 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...