./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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 ../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.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 12de589994efba7ef02a09446e6dcc495aa77e08 ....................................................................................................................................................................................................................................... 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 ../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.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 12de589994efba7ef02a09446e6dcc495aa77e08 ....................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 14:13:42,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:13:42,163 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:13:42,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:13:42,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:13:42,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:13:42,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:13:42,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:13:42,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:13:42,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:13:42,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:13:42,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:13:42,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:13:42,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:13:42,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:13:42,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:13:42,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:13:42,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:13:42,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:13:42,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:13:42,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:13:42,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:13:42,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:13:42,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:13:42,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:13:42,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:13:42,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:13:42,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:13:42,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:13:42,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:13:42,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:13:42,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:13:42,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:13:42,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:13:42,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:13:42,247 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:13:42,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:13:42,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:13:42,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:13:42,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:13:42,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:13:42,252 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:13:42,287 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:13:42,288 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:13:42,289 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:13:42,290 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:13:42,290 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:13:42,290 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:13:42,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:13:42,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:13:42,291 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:13:42,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:13:42,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:13:42,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:13:42,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:13:42,292 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:13:42,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:13:42,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:13:42,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:13:42,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:13:42,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:13:42,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:13:42,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:13:42,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:13:42,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:13:42,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:13:42,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:13:42,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:13:42,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:13:42,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:13:42,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:13:42,297 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-12-02 14:13:42,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:13:42,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:13:42,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:13:42,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:13:42,763 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:13:42,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.c [2020-12-02 14:13:42,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f795a89/c4c2bdd86ad94ec1a2aa5d9f52085cba/FLAG87e99b552 [2020-12-02 14:13:43,452 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:13:43,452 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_exact.c [2020-12-02 14:13:43,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f795a89/c4c2bdd86ad94ec1a2aa5d9f52085cba/FLAG87e99b552 [2020-12-02 14:13:43,832 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3f795a89/c4c2bdd86ad94ec1a2aa5d9f52085cba [2020-12-02 14:13:43,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:13:43,837 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:13:43,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:13:43,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:13:43,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:13:43,846 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:43" (1/1) ... [2020-12-02 14:13:43,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21142c94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:43, skipping insertion in model container [2020-12-02 14:13:43,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:43" (1/1) ... [2020-12-02 14:13:43,860 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:13:43,877 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:13:44,073 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_exact.c[392,405] [2020-12-02 14:13:44,088 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:13:44,106 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:13:44,125 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_exact.c[392,405] [2020-12-02 14:13:44,130 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:13:44,149 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:13:44,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44 WrapperNode [2020-12-02 14:13:44,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:13:44,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:13:44,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:13:44,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:13:44,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:13:44,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:13:44,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:13:44,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:13:44,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,208 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (1/1) ... [2020-12-02 14:13:44,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:13:44,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:13:44,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:13:44,211 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:13:44,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (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 [2020-12-02 14:13:44,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:13:44,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:13:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-02 14:13:44,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:13:44,511 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:13:44,512 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-02 14:13:44,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:44 BoogieIcfgContainer [2020-12-02 14:13:44,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:13:44,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:13:44,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:13:44,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:13:44,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:13:43" (1/3) ... [2020-12-02 14:13:44,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e01738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:44, skipping insertion in model container [2020-12-02 14:13:44,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:44" (2/3) ... [2020-12-02 14:13:44,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e01738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:44, skipping insertion in model container [2020-12-02 14:13:44,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:44" (3/3) ... [2020-12-02 14:13:44,532 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-12-02 14:13:44,552 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:13:44,556 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:13:44,571 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:13:44,602 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:13:44,602 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:13:44,602 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:13:44,602 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:13:44,603 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:13:44,603 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:13:44,603 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:13:44,603 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:13:44,620 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-02 14:13:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:13:44,626 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:13:44,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:13:44,627 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:13:44,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:13:44,635 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-12-02 14:13:44,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-02 14:13:44,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957549292] [2020-12-02 14:13:44,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-02 14:13:44,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:13:44,778 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:13:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 14:13:44,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 14:13:44,820 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-02 14:13:44,821 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 14:13:44,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-02 14:13:44,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:13:44 BoogieIcfgContainer [2020-12-02 14:13:44,845 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:13:44,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:13:44,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:13:44,846 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:13:44,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:44" (3/4) ... [2020-12-02 14:13:44,851 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-02 14:13:44,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:13:44,855 INFO L168 Benchmark]: Toolchain (without parser) took 1016.07 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.9 MB in the beginning and 27.4 MB in the end (delta: -2.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:44,856 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 48.2 MB. Free memory was 27.9 MB in the beginning and 27.8 MB in the end (delta: 34.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:13:44,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.50 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.7 MB in the beginning and 37.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:44,858 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.36 ms. Allocated memory is still 58.7 MB. Free memory was 37.2 MB in the beginning and 35.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:13:44,859 INFO L168 Benchmark]: Boogie Preprocessor took 21.29 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 34.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:44,860 INFO L168 Benchmark]: RCFGBuilder took 303.03 ms. Allocated memory is still 58.7 MB. Free memory was 34.8 MB in the beginning and 39.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:44,861 INFO L168 Benchmark]: TraceAbstraction took 329.46 ms. Allocated memory is still 58.7 MB. Free memory was 39.3 MB in the beginning and 27.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:44,861 INFO L168 Benchmark]: Witness Printer took 5.39 ms. Allocated memory is still 58.7 MB. Free memory was 27.6 MB in the beginning and 27.4 MB in the end (delta: 213.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:13:44,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 48.2 MB. Free memory was 27.9 MB in the beginning and 27.8 MB in the end (delta: 34.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.50 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.7 MB in the beginning and 37.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.36 ms. Allocated memory is still 58.7 MB. Free memory was 37.2 MB in the beginning and 35.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.29 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 34.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 303.03 ms. Allocated memory is still 58.7 MB. Free memory was 34.8 MB in the beginning and 39.7 MB in the end (delta: -5.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 329.46 ms. Allocated memory is still 58.7 MB. Free memory was 39.3 MB in the beginning and 27.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.39 ms. Allocated memory is still 58.7 MB. Free memory was 27.6 MB in the beginning and 27.4 MB in the end (delta: 213.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAT_SMToperation at line 13, overapproximation of someBinaryFLOAT_SMTComparisonOperation at line 16. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L6] COND TRUE !(cond) [L6] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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 0.2.0-2880296 [2020-12-02 14:13:47,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:13:47,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:13:47,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:13:47,531 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:13:47,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:13:47,540 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:13:47,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:13:47,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:13:47,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:13:47,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:13:47,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:13:47,557 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:13:47,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:13:47,560 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:13:47,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:13:47,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:13:47,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:13:47,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:13:47,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:13:47,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:13:47,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:13:47,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:13:47,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:13:47,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:13:47,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:13:47,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:13:47,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:13:47,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:13:47,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:13:47,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:13:47,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:13:47,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:13:47,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:13:47,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:13:47,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:13:47,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:13:47,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:13:47,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:13:47,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:13:47,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:13:47,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:13:47,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:13:47,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:13:47,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:13:47,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:13:47,621 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:13:47,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:13:47,622 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:13:47,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:13:47,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:13:47,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:13:47,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:13:47,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:13:47,624 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:13:47,624 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:13:47,624 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:13:47,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:13:47,625 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:13:47,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:13:47,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:13:47,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:13:47,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:13:47,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:13:47,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:13:47,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:13:47,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:13:47,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:13:47,627 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:13:47,628 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:13:47,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:13:47,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:13:47,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:13:47,629 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-12-02 14:13:48,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:13:48,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:13:48,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:13:48,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:13:48,145 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:13:48,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_float_exact.c [2020-12-02 14:13:48,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609b6d875/2933bcb9de8b4a63b25bf68c8c1e50c2/FLAG7d51ecb7b [2020-12-02 14:13:48,855 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:13:48,856 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_exact.c [2020-12-02 14:13:48,864 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609b6d875/2933bcb9de8b4a63b25bf68c8c1e50c2/FLAG7d51ecb7b [2020-12-02 14:13:49,248 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/609b6d875/2933bcb9de8b4a63b25bf68c8c1e50c2 [2020-12-02 14:13:49,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:13:49,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:13:49,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:13:49,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:13:49,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:13:49,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,268 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75dd9b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49, skipping insertion in model container [2020-12-02 14:13:49,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,278 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:13:49,296 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:13:49,517 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_exact.c[392,405] [2020-12-02 14:13:49,531 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:13:49,559 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:13:49,572 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_float_exact.c[392,405] [2020-12-02 14:13:49,576 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:13:49,597 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:13:49,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49 WrapperNode [2020-12-02 14:13:49,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:13:49,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:13:49,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:13:49,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:13:49,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:13:49,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:13:49,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:13:49,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:13:49,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (1/1) ... [2020-12-02 14:13:49,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:13:49,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:13:49,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:13:49,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:13:49,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (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 [2020-12-02 14:13:49,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 14:13:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:13:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:13:49,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:13:49,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 14:13:50,063 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:13:50,064 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-02 14:13:50,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:50 BoogieIcfgContainer [2020-12-02 14:13:50,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:13:50,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:13:50,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:13:50,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:13:50,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:13:49" (1/3) ... [2020-12-02 14:13:50,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147964ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:50, skipping insertion in model container [2020-12-02 14:13:50,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:13:49" (2/3) ... [2020-12-02 14:13:50,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147964ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:13:50, skipping insertion in model container [2020-12-02 14:13:50,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:50" (3/3) ... [2020-12-02 14:13:50,074 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-12-02 14:13:50,092 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:13:50,096 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:13:50,110 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:13:50,142 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:13:50,143 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:13:50,143 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:13:50,143 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:13:50,143 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:13:50,143 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:13:50,143 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:13:50,144 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:13:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-02 14:13:50,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-02 14:13:50,167 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:13:50,168 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-02 14:13:50,168 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:13:50,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:13:50,176 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-12-02 14:13:50,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:13:50,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602070044] [2020-12-02 14:13:50,193 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 [2020-12-02 14:13:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:13:50,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-02 14:13:50,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:13:50,543 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:13:50,553 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:13:50,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 8 disjuncts [2020-12-02 14:13:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:50,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:13:50,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 14:13:51,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602070044] [2020-12-02 14:13:51,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:13:51,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-02 14:13:51,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853357867] [2020-12-02 14:13:51,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 14:13:51,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:13:51,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 14:13:51,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-02 14:13:51,029 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2020-12-02 14:13:51,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:13:51,119 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-12-02 14:13:51,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 14:13:51,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-12-02 14:13:51,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:13:51,128 INFO L225 Difference]: With dead ends: 13 [2020-12-02 14:13:51,129 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 14:13:51,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-02 14:13:51,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 14:13:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 14:13:51,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 14:13:51,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 14:13:51,159 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-02 14:13:51,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:13:51,160 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 14:13:51,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 14:13:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 14:13:51,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 14:13:51,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 14:13:51,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 14:13:51,435 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 14:13:51,435 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 14:13:51,435 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 14:13:51,435 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 14:13:51,435 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2020-12-02 14:13:51,436 INFO L258 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= roundNearestTiesToEven ~CRM)) [2020-12-02 14:13:51,436 INFO L262 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-12-02 14:13:51,436 INFO L262 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-12-02 14:13:51,436 INFO L258 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= roundNearestTiesToEven ~CRM)) [2020-12-02 14:13:51,446 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:13:51,452 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:13:51,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:13:51,456 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:13:51,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:13:51 BoogieIcfgContainer [2020-12-02 14:13:51,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 14:13:51,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 14:13:51,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 14:13:51,463 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 14:13:51,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:13:50" (3/4) ... [2020-12-02 14:13:51,468 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 14:13:51,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-02 14:13:51,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-02 14:13:51,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-02 14:13:51,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 14:13:51,529 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 14:13:51,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 14:13:51,532 INFO L168 Benchmark]: Toolchain (without parser) took 2274.91 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.5 MB in the beginning and 33.0 MB in the end (delta: -3.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:51,533 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 39.8 MB. Free memory was 17.5 MB in the beginning and 17.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:13:51,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.27 ms. Allocated memory is still 52.4 MB. Free memory was 29.4 MB in the beginning and 30.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:51,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.71 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 28.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:13:51,535 INFO L168 Benchmark]: Boogie Preprocessor took 28.30 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 27.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:13:51,536 INFO L168 Benchmark]: RCFGBuilder took 379.70 ms. Allocated memory is still 52.4 MB. Free memory was 27.7 MB in the beginning and 29.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:51,537 INFO L168 Benchmark]: TraceAbstraction took 1393.11 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 35.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:51,538 INFO L168 Benchmark]: Witness Printer took 67.42 ms. Allocated memory is still 62.9 MB. Free memory was 35.4 MB in the beginning and 33.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 14:13:51,542 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 39.8 MB. Free memory was 17.5 MB in the beginning and 17.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 339.27 ms. Allocated memory is still 52.4 MB. Free memory was 29.4 MB in the beginning and 30.6 MB in the end (delta: -1.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.71 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 28.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.30 ms. Allocated memory is still 52.4 MB. Free memory was 28.9 MB in the beginning and 27.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 379.70 ms. Allocated memory is still 52.4 MB. Free memory was 27.7 MB in the beginning and 29.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1393.11 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 35.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 3.0 MB. Max. memory is 16.1 GB. * Witness Printer took 67.42 ms. Allocated memory is still 62.9 MB. Free memory was 35.4 MB in the beginning and 33.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant [2020-12-02 14:13:51,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:13:51,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && ~roundNearestTiesToEven == unknown-~CRM-unknown - InvariantResult [Line: 6]: Loop Invariant [2020-12-02 14:13:51,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-02 14:13:51,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && ~roundNearestTiesToEven == unknown-~CRM-unknown - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 7 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 11 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...