./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/addsub_float_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e96842f9a03cb3c7d57e4720c2380ee270a08502 ........................................................................................................................................................................................................................... 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 -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e96842f9a03cb3c7d57e4720c2380ee270a08502 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 16:39:17,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:39:17,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:39:17,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:39:17,205 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:39:17,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:39:17,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:39:17,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:39:17,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:39:17,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:39:17,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:39:17,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:39:17,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:39:17,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:39:17,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:39:17,235 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:39:17,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:39:17,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:39:17,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:39:17,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:39:17,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:39:17,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:39:17,255 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:39:17,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:39:17,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:39:17,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:39:17,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:39:17,264 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:39:17,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:39:17,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:39:17,267 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:39:17,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:39:17,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:39:17,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:39:17,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:39:17,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:39:17,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:39:17,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:39:17,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:39:17,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:39:17,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:39:17,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:39:17,309 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:39:17,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:39:17,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:39:17,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:39:17,313 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:39:17,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:39:17,313 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:39:17,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:39:17,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:39:17,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:39:17,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:39:17,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:39:17,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:39:17,317 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:39:17,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:39:17,317 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:39:17,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:39:17,318 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:39:17,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:39:17,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:39:17,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:39:17,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:39:17,319 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:39:17,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:39:17,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:39:17,320 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:39:17,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:39:17,321 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:39:17,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:39:17,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2019-11-28 16:39:17,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:39:17,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:39:17,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:39:17,654 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:39:17,655 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:39:17,656 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2019-11-28 16:39:17,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e16c042c/e836321d44c149a99eed75a8fffb72ff/FLAGf1fcaaef8 [2019-11-28 16:39:18,140 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:39:18,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2019-11-28 16:39:18,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e16c042c/e836321d44c149a99eed75a8fffb72ff/FLAGf1fcaaef8 [2019-11-28 16:39:18,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e16c042c/e836321d44c149a99eed75a8fffb72ff [2019-11-28 16:39:18,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:39:18,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:39:18,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:39:18,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:39:18,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:39:18,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a48a79f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18, skipping insertion in model container [2019-11-28 16:39:18,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:39:18,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:39:18,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:39:18,779 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:39:18,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:39:18,812 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:39:18,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18 WrapperNode [2019-11-28 16:39:18,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:39:18,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:39:18,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:39:18,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:39:18,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:39:18,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:39:18,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:39:18,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:39:18,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,917 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (1/1) ... [2019-11-28 16:39:18,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:39:18,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:39:18,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:39:18,922 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:39:18,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (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 [2019-11-28 16:39:18,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:39:18,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:39:19,123 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:39:19,124 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 16:39:19,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:19 BoogieIcfgContainer [2019-11-28 16:39:19,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:39:19,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:39:19,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:39:19,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:39:19,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:39:18" (1/3) ... [2019-11-28 16:39:19,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fae24c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:39:19, skipping insertion in model container [2019-11-28 16:39:19,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:18" (2/3) ... [2019-11-28 16:39:19,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fae24c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:39:19, skipping insertion in model container [2019-11-28 16:39:19,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:19" (3/3) ... [2019-11-28 16:39:19,133 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2019-11-28 16:39:19,141 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:39:19,146 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:39:19,156 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:39:19,179 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:39:19,180 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:39:19,180 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:39:19,180 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:39:19,180 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:39:19,180 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:39:19,180 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:39:19,181 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:39:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-28 16:39:19,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 16:39:19,198 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:39:19,199 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 16:39:19,199 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:39:19,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:39:19,205 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-28 16:39:19,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:39:19,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504571198] [2019-11-28 16:39:19,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:39:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:39:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:39:19,319 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:39:19,319 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:39:19,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:39:19 BoogieIcfgContainer [2019-11-28 16:39:19,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:39:19,337 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:39:19,337 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:39:19,337 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:39:19,338 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:19" (3/4) ... [2019-11-28 16:39:19,342 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:39:19,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:39:19,345 INFO L168 Benchmark]: Toolchain (without parser) took 779.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -153.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:39:19,346 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:39:19,347 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.79 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:19,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:19,349 INFO L168 Benchmark]: Boogie Preprocessor took 16.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:39:19,350 INFO L168 Benchmark]: RCFGBuilder took 203.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:19,351 INFO L168 Benchmark]: TraceAbstraction took 209.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:19,352 INFO L168 Benchmark]: Witness Printer took 5.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:39:19,356 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 247.79 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 90.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 203.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 209.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 11. Possible FailurePath: [L8] float x, y, z, r; [L10] x = 1e7f [L11] y = x + 1.f [L12] z = x - 1.f [L13] r = y - z [L4] COND TRUE !(cond) [L4] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 3 NumberOfCodeBlocks, 3 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, 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 0.1.25-f470102 [2019-11-28 16:39:21,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:39:21,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:39:21,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:39:21,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:39:21,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:39:21,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:39:21,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:39:21,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:39:21,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:39:21,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:39:21,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:39:21,438 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:39:21,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:39:21,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:39:21,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:39:21,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:39:21,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:39:21,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:39:21,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:39:21,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:39:21,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:39:21,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:39:21,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:39:21,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:39:21,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:39:21,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:39:21,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:39:21,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:39:21,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:39:21,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:39:21,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:39:21,480 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:39:21,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:39:21,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:39:21,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:39:21,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:39:21,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:39:21,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:39:21,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:39:21,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:39:21,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:39:21,511 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:39:21,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:39:21,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:39:21,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:39:21,515 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:39:21,515 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:39:21,515 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:39:21,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:39:21,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:39:21,516 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:39:21,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:39:21,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:39:21,518 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:39:21,518 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:39:21,519 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:39:21,519 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:39:21,519 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:39:21,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:39:21,520 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:39:21,520 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:39:21,520 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:39:21,520 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:39:21,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:39:21,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:39:21,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:39:21,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:39:21,522 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:39:21,522 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:39:21,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:39:21,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:39:21,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:39:21,523 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(__VERIFIER_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 -> e96842f9a03cb3c7d57e4720c2380ee270a08502 [2019-11-28 16:39:21,823 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:39:21,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:39:21,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:39:21,843 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:39:21,843 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:39:21,844 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2019-11-28 16:39:21,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1e8db80/3eac00fc5545451bbb17161fcc8f0f73/FLAG9517a9144 [2019-11-28 16:39:22,360 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:39:22,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2019-11-28 16:39:22,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1e8db80/3eac00fc5545451bbb17161fcc8f0f73/FLAG9517a9144 [2019-11-28 16:39:22,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1e8db80/3eac00fc5545451bbb17161fcc8f0f73 [2019-11-28 16:39:22,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:39:22,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:39:22,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:39:22,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:39:22,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:39:22,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:22" (1/1) ... [2019-11-28 16:39:22,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388be10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:22, skipping insertion in model container [2019-11-28 16:39:22,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:39:22" (1/1) ... [2019-11-28 16:39:22,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:39:22,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:39:22,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:39:22,988 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:39:23,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:39:23,025 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:39:23,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23 WrapperNode [2019-11-28 16:39:23,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:39:23,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:39:23,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:39:23,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:39:23,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:39:23,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:39:23,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:39:23,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:39:23,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (1/1) ... [2019-11-28 16:39:23,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:39:23,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:39:23,145 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:39:23,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:39:23,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (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 [2019-11-28 16:39:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:39:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:39:23,492 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:39:23,492 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 16:39:23,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:23 BoogieIcfgContainer [2019-11-28 16:39:23,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:39:23,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:39:23,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:39:23,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:39:23,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:39:22" (1/3) ... [2019-11-28 16:39:23,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18abe984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:39:23, skipping insertion in model container [2019-11-28 16:39:23,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:39:23" (2/3) ... [2019-11-28 16:39:23,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18abe984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:39:23, skipping insertion in model container [2019-11-28 16:39:23,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:23" (3/3) ... [2019-11-28 16:39:23,508 INFO L109 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2019-11-28 16:39:23,519 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:39:23,526 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:39:23,539 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:39:23,563 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:39:23,564 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:39:23,564 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:39:23,564 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:39:23,564 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:39:23,564 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:39:23,564 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:39:23,565 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:39:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-28 16:39:23,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 16:39:23,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:39:23,584 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 16:39:23,584 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:39:23,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:39:23,589 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-28 16:39:23,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:39:23,599 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084566633] [2019-11-28 16:39:23,599 INFO L94 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 [2019-11-28 16:39:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:39:23,771 WARN L262 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 16:39:23,776 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:39:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:39:23,892 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:39:23,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:39:23,927 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084566633] [2019-11-28 16:39:23,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:39:23,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-28 16:39:23,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629229858] [2019-11-28 16:39:23,934 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 16:39:23,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:39:23,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 16:39:23,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 16:39:23,953 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2019-11-28 16:39:24,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:39:24,167 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-11-28 16:39:24,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 16:39:24,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-11-28 16:39:24,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:39:24,175 INFO L225 Difference]: With dead ends: 13 [2019-11-28 16:39:24,176 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:39:24,179 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 16:39:24,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:39:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:39:24,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:39:24,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:39:24,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-28 16:39:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:39:24,202 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:39:24,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 16:39:24,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:39:24,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:39:24,411 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:39:24,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:39:24,485 INFO L242 CegarLoopResult]: At program point L4-3(line 4) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-28 16:39:24,485 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:39:24,485 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:39:24,486 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:39:24,486 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:39:24,486 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-11-28 16:39:24,486 INFO L242 CegarLoopResult]: At program point L15(lines 6 16) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-28 16:39:24,487 INFO L246 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2019-11-28 16:39:24,487 INFO L246 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2019-11-28 16:39:24,501 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:39:24,505 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:39:24,508 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:39:24,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:39:24,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:39:24,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:39:24,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:39:24,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:39:24,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:39:24 BoogieIcfgContainer [2019-11-28 16:39:24,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:39:24,529 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:39:24,529 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:39:24,530 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:39:24,530 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:39:23" (3/4) ... [2019-11-28 16:39:24,538 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:39:24,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 16:39:24,560 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 16:39:24,560 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 16:39:24,632 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:39:24,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:39:24,642 INFO L168 Benchmark]: Toolchain (without parser) took 1878.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -119.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:24,642 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:39:24,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.43 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:24,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:24,645 INFO L168 Benchmark]: Boogie Preprocessor took 24.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:24,646 INFO L168 Benchmark]: RCFGBuilder took 349.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:24,646 INFO L168 Benchmark]: TraceAbstraction took 1027.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:24,648 INFO L168 Benchmark]: Witness Printer took 103.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:39:24,662 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 268.43 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -193.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 349.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1027.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 103.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant [2019-11-28 16:39:24,678 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:39:24,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:39:24,680 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:39:24,680 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 4]: Loop Invariant [2019-11-28 16:39:24,680 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:39:24,681 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-28 16:39:24,682 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-28 16:39:24,682 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 7 NumberOfNonLiveVariables, 11 ConjunctsInSsa, 8 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...