./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/float_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/float_double.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 .................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/float_double.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:38:01,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:38:01,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:38:01,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:38:01,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:38:01,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:38:01,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:38:01,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:38:01,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:38:01,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:38:01,969 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:38:01,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:38:01,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:38:01,975 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:38:01,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:38:01,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:38:01,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:38:01,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:38:01,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:38:02,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:38:02,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:38:02,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:38:02,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:38:02,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:38:02,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:38:02,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:38:02,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:38:02,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:38:02,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:38:02,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:38:02,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:38:02,031 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:38:02,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:38:02,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:38:02,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:38:02,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:38:02,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:38:02,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:38:02,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:38:02,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:38:02,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:38:02,042 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:38:02,099 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:38:02,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:38:02,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:38:02,104 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:38:02,104 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:38:02,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:38:02,105 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:38:02,105 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:38:02,105 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:38:02,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:38:02,107 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:38:02,107 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:38:02,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:38:02,108 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:38:02,108 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:38:02,109 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:38:02,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:38:02,109 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:38:02,109 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:38:02,110 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:38:02,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:38:02,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:38:02,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:38:02,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:38:02,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:38:02,112 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:38:02,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:38:02,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:38:02,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:38:02,113 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2020-10-25 21:38:02,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:38:02,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:38:02,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:38:02,576 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:38:02,577 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:38:02,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_double.c [2020-10-25 21:38:02,671 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eb334d84/abce7118bb7d457fb07ca3290cdcce51/FLAG27dc2fb43 [2020-10-25 21:38:03,245 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:38:03,246 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/float_double.c [2020-10-25 21:38:03,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eb334d84/abce7118bb7d457fb07ca3290cdcce51/FLAG27dc2fb43 [2020-10-25 21:38:03,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8eb334d84/abce7118bb7d457fb07ca3290cdcce51 [2020-10-25 21:38:03,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:38:03,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:38:03,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:38:03,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:38:03,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:38:03,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31090fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03, skipping insertion in model container [2020-10-25 21:38:03,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:38:03,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:38:03,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:38:03,881 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:38:03,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:38:03,910 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:38:03,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03 WrapperNode [2020-10-25 21:38:03,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:38:03,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:38:03,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:38:03,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:38:03,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:38:03,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:38:03,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:38:03,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:38:03,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... [2020-10-25 21:38:03,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:38:03,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:38:03,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:38:03,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:38:03,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-25 21:38:04,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:38:04,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:38:04,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:38:04,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:38:04,324 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:38:04,324 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-25 21:38:04,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:38:04 BoogieIcfgContainer [2020-10-25 21:38:04,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:38:04,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:38:04,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:38:04,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:38:04,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:38:03" (1/3) ... [2020-10-25 21:38:04,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea233d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:38:04, skipping insertion in model container [2020-10-25 21:38:04,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:03" (2/3) ... [2020-10-25 21:38:04,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea233d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:38:04, skipping insertion in model container [2020-10-25 21:38:04,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:38:04" (3/3) ... [2020-10-25 21:38:04,346 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-10-25 21:38:04,379 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:38:04,392 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:38:04,422 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:38:04,471 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:38:04,472 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:38:04,472 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:38:04,472 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:38:04,473 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:38:04,473 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:38:04,474 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:38:04,474 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:38:04,494 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-25 21:38:04,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-25 21:38:04,502 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:38:04,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-25 21:38:04,504 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:38:04,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:38:04,513 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-25 21:38:04,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:38:04,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860384724] [2020-10-25 21:38:04,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:38:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:38:04,704 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:38:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:38:04,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:38:04,784 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:38:04,785 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:38:04,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:38:04,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:38:04 BoogieIcfgContainer [2020-10-25 21:38:04,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:38:04,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:38:04,818 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:38:04,818 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:38:04,819 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:38:04" (3/4) ... [2020-10-25 21:38:04,823 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:38:04,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:38:04,829 INFO L168 Benchmark]: Toolchain (without parser) took 1177.17 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 20.9 MB in the end (delta: 7.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:04,833 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 50.3 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 34.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:38:04,834 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.93 ms. Allocated memory is still 50.3 MB. Free memory was 27.7 MB in the beginning and 31.9 MB in the end (delta: -4.2 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:04,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.29 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 30.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:38:04,838 INFO L168 Benchmark]: Boogie Preprocessor took 20.63 ms. Allocated memory is still 50.3 MB. Free memory was 30.7 MB in the beginning and 29.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:38:04,839 INFO L168 Benchmark]: RCFGBuilder took 356.36 ms. Allocated memory is still 50.3 MB. Free memory was 29.6 MB in the beginning and 33.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:04,841 INFO L168 Benchmark]: TraceAbstraction took 486.56 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 21.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:04,842 INFO L168 Benchmark]: Witness Printer took 6.29 ms. Allocated memory is still 50.3 MB. Free memory was 21.3 MB in the beginning and 20.9 MB in the end (delta: 398.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:38:04,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 50.3 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 34.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.93 ms. Allocated memory is still 50.3 MB. Free memory was 27.7 MB in the beginning and 31.9 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 35.29 ms. Allocated memory is still 50.3 MB. Free memory was 31.9 MB in the beginning and 30.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.63 ms. Allocated memory is still 50.3 MB. Free memory was 30.7 MB in the beginning and 29.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 356.36 ms. Allocated memory is still 50.3 MB. Free memory was 29.6 MB in the beginning and 33.4 MB in the end (delta: -3.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 486.56 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 21.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 6.29 ms. Allocated memory is still 50.3 MB. Free memory was 21.3 MB in the beginning and 20.9 MB in the end (delta: 398.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 12, overapproximation of someBinaryArithmeticDOUBLEoperation at line 10. Possible FailurePath: [L10] double x = 1e20 + 1.; [L11] float y = x; [L6] COND TRUE !(cond) [L3] __assert_fail("0", "float_double.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 21:38:07,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:38:07,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:38:07,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:38:07,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:38:07,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:38:07,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:38:07,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:38:07,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:38:07,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:38:07,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:38:07,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:38:07,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:38:07,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:38:07,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:38:07,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:38:07,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:38:07,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:38:07,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:38:07,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:38:07,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:38:07,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:38:07,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:38:07,715 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:38:07,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:38:07,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:38:07,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:38:07,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:38:07,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:38:07,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:38:07,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:38:07,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:38:07,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:38:07,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:38:07,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:38:07,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:38:07,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:38:07,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:38:07,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:38:07,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:38:07,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:38:07,749 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:38:07,806 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:38:07,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:38:07,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:38:07,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:38:07,812 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:38:07,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:38:07,812 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:38:07,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:38:07,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:38:07,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:38:07,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:38:07,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:38:07,815 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:38:07,816 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:38:07,816 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:38:07,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:38:07,817 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:38:07,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:38:07,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:38:07,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:38:07,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:38:07,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:38:07,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:38:07,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:38:07,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:38:07,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:38:07,820 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:38:07,820 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:38:07,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:38:07,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:38:07,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:38:07,821 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3cc8be4574ed58f48fa7ae6ba17a4162234910 [2020-10-25 21:38:08,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:38:08,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:38:08,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:38:08,278 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:38:08,283 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:38:08,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/float_double.c [2020-10-25 21:38:08,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df456f683/e4c6578900e745c98b3f354d6341f6a7/FLAG6e874fc4d [2020-10-25 21:38:08,941 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:38:08,942 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/float_double.c [2020-10-25 21:38:08,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df456f683/e4c6578900e745c98b3f354d6341f6a7/FLAG6e874fc4d [2020-10-25 21:38:09,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df456f683/e4c6578900e745c98b3f354d6341f6a7 [2020-10-25 21:38:09,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:38:09,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:38:09,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:38:09,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:38:09,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:38:09,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af4c569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09, skipping insertion in model container [2020-10-25 21:38:09,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,416 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:38:09,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:38:09,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:38:09,678 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:38:09,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:38:09,716 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:38:09,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09 WrapperNode [2020-10-25 21:38:09,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:38:09,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:38:09,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:38:09,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:38:09,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:38:09,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:38:09,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:38:09,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:38:09,774 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... [2020-10-25 21:38:09,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:38:09,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:38:09,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:38:09,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:38:09,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-25 21:38:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:38:09,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:38:09,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:38:09,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:38:10,470 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:38:10,471 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-25 21:38:10,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:38:10 BoogieIcfgContainer [2020-10-25 21:38:10,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:38:10,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:38:10,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:38:10,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:38:10,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:38:09" (1/3) ... [2020-10-25 21:38:10,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70627729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:38:10, skipping insertion in model container [2020-10-25 21:38:10,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:38:09" (2/3) ... [2020-10-25 21:38:10,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70627729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:38:10, skipping insertion in model container [2020-10-25 21:38:10,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:38:10" (3/3) ... [2020-10-25 21:38:10,487 INFO L111 eAbstractionObserver]: Analyzing ICFG float_double.c [2020-10-25 21:38:10,516 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:38:10,521 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:38:10,538 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:38:10,588 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:38:10,589 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:38:10,589 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:38:10,589 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:38:10,589 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:38:10,589 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:38:10,590 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:38:10,590 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:38:10,605 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-25 21:38:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-25 21:38:10,611 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:38:10,612 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-25 21:38:10,613 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:38:10,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:38:10,622 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-25 21:38:10,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:38:10,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021967764] [2020-10-25 21:38:10,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-10-25 21:38:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:38:10,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-25 21:38:10,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:38:11,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:38:11,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:38:11,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:38:11,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021967764] [2020-10-25 21:38:11,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:38:11,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-25 21:38:11,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135938383] [2020-10-25 21:38:11,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 21:38:11,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:38:11,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 21:38:11,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:38:11,121 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-10-25 21:38:11,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:38:11,148 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-25 21:38:11,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 21:38:11,150 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-25 21:38:11,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:38:11,158 INFO L225 Difference]: With dead ends: 14 [2020-10-25 21:38:11,158 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:38:11,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-25 21:38:11,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:38:11,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:38:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:38:11,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:38:11,191 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-25 21:38:11,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:38:11,192 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:38:11,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 21:38:11,192 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:38:11,192 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:38:11,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:38:11,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:38:11,464 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:38:11,464 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:38:11,465 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:38:11,465 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:38:11,465 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:38:11,465 INFO L270 CegarLoopResult]: At program point L13(lines 8 14) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-25 21:38:11,466 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-25 21:38:11,466 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-10-25 21:38:11,466 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:38:11,467 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-25 21:38:11,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:38:11 BoogieIcfgContainer [2020-10-25 21:38:11,483 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:38:11,484 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:38:11,484 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:38:11,484 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:38:11,485 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:38:10" (3/4) ... [2020-10-25 21:38:11,489 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:38:11,500 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 21:38:11,500 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 21:38:11,501 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 21:38:11,501 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:38:11,543 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:38:11,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:38:11,546 INFO L168 Benchmark]: Toolchain (without parser) took 2156.30 ms. Allocated memory was 37.7 MB in the beginning and 56.6 MB in the end (delta: 18.9 MB). Free memory was 23.8 MB in the beginning and 40.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:11,547 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 37.7 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:38:11,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.32 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 23.2 MB in the beginning and 24.8 MB in the end (delta: -1.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:11,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.48 ms. Allocated memory is still 46.1 MB. Free memory was 24.8 MB in the beginning and 23.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:11,551 INFO L168 Benchmark]: Boogie Preprocessor took 29.55 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 22.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:38:11,551 INFO L168 Benchmark]: RCFGBuilder took 680.80 ms. Allocated memory is still 46.1 MB. Free memory was 22.3 MB in the beginning and 22.3 MB in the end (delta: -18.2 kB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:11,552 INFO L168 Benchmark]: TraceAbstraction took 1006.26 ms. Allocated memory is still 46.1 MB. Free memory was 21.8 MB in the beginning and 21.3 MB in the end (delta: 469.4 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:11,554 INFO L168 Benchmark]: Witness Printer took 59.90 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.3 MB in the beginning and 40.1 MB in the end (delta: -18.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:38:11,559 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 37.7 MB. Free memory was 20.4 MB in the beginning and 20.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.32 ms. Allocated memory was 37.7 MB in the beginning and 46.1 MB in the end (delta: 8.4 MB). Free memory was 23.2 MB in the beginning and 24.8 MB in the end (delta: -1.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.48 ms. Allocated memory is still 46.1 MB. Free memory was 24.8 MB in the beginning and 23.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.55 ms. Allocated memory is still 46.1 MB. Free memory was 23.3 MB in the beginning and 22.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 680.80 ms. Allocated memory is still 46.1 MB. Free memory was 22.3 MB in the beginning and 22.3 MB in the end (delta: -18.2 kB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1006.26 ms. Allocated memory is still 46.1 MB. Free memory was 21.8 MB in the beginning and 21.3 MB in the end (delta: 469.4 kB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Witness Printer took 59.90 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 21.3 MB in the beginning and 40.1 MB in the end (delta: -18.7 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: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 6 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...