./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/floats-cbmc-regression/float12.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 748862a4a10e7eb5031b0856b76be837613208b8 ...................................................................................................................................................................................................................................... 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/floats-cbmc-regression/float12.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 748862a4a10e7eb5031b0856b76be837613208b8 ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 22:55:14,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:55:14,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:55:14,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:55:14,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:55:14,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:55:14,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:55:14,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:55:14,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:55:14,920 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:55:14,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:55:14,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:55:14,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:55:14,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:55:14,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:55:14,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:55:14,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:55:14,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:55:14,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:55:14,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:55:14,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:55:14,935 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:55:14,936 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:55:14,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:55:14,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:55:14,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:55:14,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:55:14,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:55:14,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:55:14,944 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:55:14,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:55:14,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:55:14,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:55:14,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:55:14,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:55:14,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:55:14,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:55:14,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:55:14,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:55:14,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:55:14,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:55:14,952 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 22:55:14,979 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:55:14,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:55:14,980 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:55:14,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:55:14,981 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:55:14,981 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:55:14,981 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:55:14,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 22:55:14,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:55:14,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:55:14,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:55:14,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:55:14,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:55:14,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:55:14,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:55:14,982 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:55:14,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:55:14,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:55:14,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:55:14,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:55:14,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:55:14,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:55:14,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:55:14,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:55:14,983 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 22:55:14,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 22:55:14,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:55:14,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:55:14,983 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2021-07-04 22:55:15,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:55:15,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:55:15,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:55:15,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:55:15,264 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:55:15,265 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float12.c [2021-07-04 22:55:15,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43231d144/f277b9af6c4b423a96fcf1f156448731/FLAG9de7bce46 [2021-07-04 22:55:15,583 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:55:15,584 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c [2021-07-04 22:55:15,590 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43231d144/f277b9af6c4b423a96fcf1f156448731/FLAG9de7bce46 [2021-07-04 22:55:16,024 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43231d144/f277b9af6c4b423a96fcf1f156448731 [2021-07-04 22:55:16,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:55:16,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:55:16,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:55:16,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:55:16,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:55:16,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f5e1c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16, skipping insertion in model container [2021-07-04 22:55:16,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:55:16,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:55:16,112 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2021-07-04 22:55:16,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:55:16,119 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:55:16,126 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2021-07-04 22:55:16,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:55:16,135 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:55:16,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16 WrapperNode [2021-07-04 22:55:16,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:55:16,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:55:16,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:55:16,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:55:16,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:55:16,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:55:16,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:55:16,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:55:16,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:55:16,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:55:16,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:55:16,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:55:16,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (1/1) ... [2021-07-04 22:55:16,190 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:55:16,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:55:16,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-04 22:55:16,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-04 22:55:16,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:55:16,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:55:16,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 22:55:16,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:55:16,402 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:55:16,402 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-04 22:55:16,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:16 BoogieIcfgContainer [2021-07-04 22:55:16,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:55:16,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:55:16,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:55:16,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:55:16,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:55:16" (1/3) ... [2021-07-04 22:55:16,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33883a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:55:16, skipping insertion in model container [2021-07-04 22:55:16,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:16" (2/3) ... [2021-07-04 22:55:16,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33883a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:55:16, skipping insertion in model container [2021-07-04 22:55:16,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:16" (3/3) ... [2021-07-04 22:55:16,409 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2021-07-04 22:55:16,415 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:55:16,416 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 22:55:16,451 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:55:16,457 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:55:16,458 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:55:16,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:16,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-04 22:55:16,471 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:55:16,472 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-04 22:55:16,472 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:55:16,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:55:16,477 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2021-07-04 22:55:16,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 22:55:16,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904352461] [2021-07-04 22:55:16,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:55:16,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 22:55:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:55:16,551 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:55:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:55:16,572 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:55:16,598 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 22:55:16,599 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 22:55:16,602 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 22:55:16,602 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:55:16,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:55:16 BoogieIcfgContainer [2021-07-04 22:55:16,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:55:16,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:55:16,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:55:16,624 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:55:16,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:16" (3/4) ... [2021-07-04 22:55:16,626 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-04 22:55:16,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:55:16,627 INFO L168 Benchmark]: Toolchain (without parser) took 599.63 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 52.5 MB in the beginning and 65.5 MB in the end (delta: -13.0 MB). Peak memory consumption was 326.9 kB. Max. memory is 16.1 GB. [2021-07-04 22:55:16,628 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 69.2 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:16,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 107.44 ms. Allocated memory is still 69.2 MB. Free memory was 52.4 MB in the beginning and 43.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:16,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.97 ms. Allocated memory is still 69.2 MB. Free memory was 43.2 MB in the beginning and 54.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:16,629 INFO L168 Benchmark]: Boogie Preprocessor took 24.93 ms. Allocated memory is still 69.2 MB. Free memory was 54.1 MB in the beginning and 53.3 MB in the end (delta: 779.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:16,630 INFO L168 Benchmark]: RCFGBuilder took 218.81 ms. Allocated memory is still 69.2 MB. Free memory was 53.1 MB in the beginning and 42.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:16,630 INFO L168 Benchmark]: TraceAbstraction took 218.13 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 42.1 MB in the beginning and 65.9 MB in the end (delta: -23.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:16,631 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 83.9 MB. Free memory was 65.9 MB in the beginning and 65.5 MB in the end (delta: 303.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:16,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 69.2 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 107.44 ms. Allocated memory is still 69.2 MB. Free memory was 52.4 MB in the beginning and 43.2 MB in the end (delta: 9.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 22.97 ms. Allocated memory is still 69.2 MB. Free memory was 43.2 MB in the beginning and 54.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.93 ms. Allocated memory is still 69.2 MB. Free memory was 54.1 MB in the beginning and 53.3 MB in the end (delta: 779.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 218.81 ms. Allocated memory is still 69.2 MB. Free memory was 53.1 MB in the beginning and 42.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 218.13 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 42.1 MB in the beginning and 65.9 MB in the end (delta: -23.8 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * Witness Printer took 2.62 ms. Allocated memory is still 83.9 MB. Free memory was 65.9 MB in the beginning and 65.5 MB in the end (delta: 303.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 15]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L8] float f = __VERIFIER_nondet_float(); [L9] double d; [L10] unsigned char x = __VERIFIER_nondet_uchar(); [L12] d=f [L14] COND TRUE f==x [L15] COND TRUE !(d==x) [L15] reach_error() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 156.9ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.6ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.6ms SsaConstructionTime, 24.9ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-07-04 22:55:16,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 22:55:18,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:55:18,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:55:18,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:55:18,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:55:18,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:55:18,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:55:18,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:55:18,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:55:18,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:55:18,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:55:18,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:55:18,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:55:18,122 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:55:18,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:55:18,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:55:18,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:55:18,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:55:18,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:55:18,132 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:55:18,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:55:18,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:55:18,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:55:18,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:55:18,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:55:18,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:55:18,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:55:18,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:55:18,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:55:18,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:55:18,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:55:18,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:55:18,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:55:18,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:55:18,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:55:18,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:55:18,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:55:18,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:55:18,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:55:18,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:55:18,150 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:55:18,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-04 22:55:18,180 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:55:18,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:55:18,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:55:18,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:55:18,182 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:55:18,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:55:18,182 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:55:18,182 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:55:18,182 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:55:18,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:55:18,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:55:18,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:55:18,183 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-04 22:55:18,184 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-04 22:55:18,184 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:55:18,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:55:18,184 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:55:18,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:55:18,184 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:55:18,184 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:55:18,184 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:55:18,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:55:18,185 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:55:18,185 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:55:18,185 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:55:18,185 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-04 22:55:18,185 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-04 22:55:18,185 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:55:18,185 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:55:18,185 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-04 22:55:18,185 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 748862a4a10e7eb5031b0856b76be837613208b8 [2021-07-04 22:55:18,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:55:18,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:55:18,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:55:18,445 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:55:18,445 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:55:18,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float12.c [2021-07-04 22:55:18,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7fe00e4/49e6550ed9b04320a2a0ab66624bcdcd/FLAG560cbbe2e [2021-07-04 22:55:18,868 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:55:18,869 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c [2021-07-04 22:55:18,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7fe00e4/49e6550ed9b04320a2a0ab66624bcdcd/FLAG560cbbe2e [2021-07-04 22:55:18,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d7fe00e4/49e6550ed9b04320a2a0ab66624bcdcd [2021-07-04 22:55:18,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:55:18,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:55:18,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:55:18,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:55:18,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:55:18,891 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:55:18" (1/1) ... [2021-07-04 22:55:18,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35eb65e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:18, skipping insertion in model container [2021-07-04 22:55:18,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:55:18" (1/1) ... [2021-07-04 22:55:18,896 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:55:18,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:55:19,008 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2021-07-04 22:55:19,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:55:19,024 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:55:19,034 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2021-07-04 22:55:19,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:55:19,068 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:55:19,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19 WrapperNode [2021-07-04 22:55:19,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:55:19,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:55:19,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:55:19,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:55:19,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:55:19,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:55:19,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:55:19,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:55:19,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:55:19,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:55:19,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:55:19,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:55:19,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (1/1) ... [2021-07-04 22:55:19,129 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:55:19,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:55:19,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-04 22:55:19,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-04 22:55:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-04 22:55:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:55:19,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:55:19,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:55:19,396 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:55:19,396 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-04 22:55:19,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:19 BoogieIcfgContainer [2021-07-04 22:55:19,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:55:19,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:55:19,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:55:19,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:55:19,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:55:18" (1/3) ... [2021-07-04 22:55:19,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37528ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:55:19, skipping insertion in model container [2021-07-04 22:55:19,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:55:19" (2/3) ... [2021-07-04 22:55:19,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37528ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:55:19, skipping insertion in model container [2021-07-04 22:55:19,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:19" (3/3) ... [2021-07-04 22:55:19,401 INFO L111 eAbstractionObserver]: Analyzing ICFG float12.c [2021-07-04 22:55:19,407 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:55:19,407 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 22:55:19,444 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:55:19,449 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:55:19,449 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:55:19,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:19,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-07-04 22:55:19,462 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:55:19,462 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-07-04 22:55:19,462 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:55:19,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:55:19,467 INFO L82 PathProgramCache]: Analyzing trace with hash 28693795, now seen corresponding path program 1 times [2021-07-04 22:55:19,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:55:19,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1910834198] [2021-07-04 22:55:19,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:55:19,475 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:55:19,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:55:19,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-07-04 22:55:19,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-07-04 22:55:19,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:55:19,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-04 22:55:19,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:55:19,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:19,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:19,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:19,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:19,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:19,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:19,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:19,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:19,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:55:19,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,771 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:19,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:55:19,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:19,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,784 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:19,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:55:19,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:19,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,793 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:19,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:55:19,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:19,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,796 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:19,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:19,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:55:19,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:20,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:20,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-04 22:55:20,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-04 22:55:20,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,208 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:20,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:55:20,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-04 22:55:20,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:20,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:55:20,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:55:20,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:20,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:20,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:20,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:20,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:20,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:20,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:20,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-07-04 22:55:20,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:20,927 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,927 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:20,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:20,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:55:20,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,930 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:20,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:20,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:55:20,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,933 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:20,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:20,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:55:20,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,935 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:20,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:20,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:55:20,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-04 22:55:21,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:21,587 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:21,588 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:21,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:55:21,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-04 22:55:21,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:21,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:55:21,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:21,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:55:21,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-07-04 22:55:21,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:21,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:21,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:55:21,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:55:21,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:55:21,773 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:55:21,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1910834198] [2021-07-04 22:55:21,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1910834198] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:55:21,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:55:21,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-07-04 22:55:21,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041985907] [2021-07-04 22:55:21,778 INFO L425 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-04 22:55:21,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:55:21,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-04 22:55:21,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-04 22:55:21,786 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:23,994 WARN L205 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 13 DAG size of output: 9 [2021-07-04 22:55:24,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:55:24,187 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-07-04 22:55:24,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 22:55:24,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-07-04 22:55:24,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:55:24,197 INFO L225 Difference]: With dead ends: 15 [2021-07-04 22:55:24,197 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:55:24,199 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3658.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-04 22:55:24,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:55:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:55:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:24,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:55:24,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2021-07-04 22:55:24,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:55:24,213 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:55:24,213 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:24,213 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:55:24,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:55:24,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:55:24,218 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:55:24,219 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:55:24,219 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:55:24,219 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:55:24,219 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-07-04 22:55:24,219 INFO L762 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-07-04 22:55:24,219 INFO L762 garLoopResultBuilder]: For program point L14(lines 14 15) no Hoare annotation was computed. [2021-07-04 22:55:24,219 INFO L762 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-07-04 22:55:24,220 INFO L762 garLoopResultBuilder]: For program point L6(lines 6 16) no Hoare annotation was computed. [2021-07-04 22:55:24,230 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-07-04 22:55:24,427 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:55:24,427 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:55:24,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:55:24 BoogieIcfgContainer [2021-07-04 22:55:24,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:55:24,436 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:55:24,436 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:55:24,436 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:55:24,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:55:19" (3/4) ... [2021-07-04 22:55:24,441 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-04 22:55:24,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-07-04 22:55:24,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-04 22:55:24,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-07-04 22:55:24,449 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 22:55:24,479 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 22:55:24,479 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:55:24,480 INFO L168 Benchmark]: Toolchain (without parser) took 5594.57 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 37.3 MB in the beginning and 52.5 MB in the end (delta: -15.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:24,481 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 58.7 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:24,484 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.83 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 42.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:24,484 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.88 ms. Allocated memory is still 79.7 MB. Free memory was 64.1 MB in the beginning and 62.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:24,485 INFO L168 Benchmark]: Boogie Preprocessor took 11.83 ms. Allocated memory is still 79.7 MB. Free memory was 62.8 MB in the beginning and 61.8 MB in the end (delta: 946.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:24,485 INFO L168 Benchmark]: RCFGBuilder took 272.72 ms. Allocated memory is still 79.7 MB. Free memory was 61.6 MB in the beginning and 50.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:24,485 INFO L168 Benchmark]: TraceAbstraction took 5035.29 ms. Allocated memory is still 79.7 MB. Free memory was 49.7 MB in the beginning and 54.8 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:24,486 INFO L168 Benchmark]: Witness Printer took 43.71 ms. Allocated memory is still 79.7 MB. Free memory was 54.8 MB in the beginning and 52.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:24,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 58.7 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 180.83 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 42.7 MB in the end (delta: -5.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.88 ms. Allocated memory is still 79.7 MB. Free memory was 64.1 MB in the beginning and 62.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 11.83 ms. Allocated memory is still 79.7 MB. Free memory was 62.8 MB in the beginning and 61.8 MB in the end (delta: 946.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 272.72 ms. Allocated memory is still 79.7 MB. Free memory was 61.6 MB in the beginning and 50.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5035.29 ms. Allocated memory is still 79.7 MB. Free memory was 49.7 MB in the beginning and 54.8 MB in the end (delta: -5.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 43.71 ms. Allocated memory is still 79.7 MB. Free memory was 54.8 MB in the beginning and 52.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4987.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.2ms, AutomataDifference: 2420.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.3ms, InitialAbstractionConstructionTime: 6.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 465.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 3658.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 5.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 8.4ms SsaConstructionTime, 34.8ms SatisfiabilityAnalysisTime, 2204.4ms InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 2 QuantifiedInterpolants, 39 SizeOfPredicates, 6 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-07-04 22:55:24,540 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...