./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: 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 /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -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 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 ....................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: 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 /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -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 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 ...................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:39:56,180 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:39:56,181 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:39:56,195 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:39:56,195 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:39:56,196 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:39:56,198 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:39:56,200 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:39:56,202 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:39:56,203 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:39:56,203 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:39:56,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:39:56,205 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:39:56,206 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:39:56,207 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:39:56,208 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:39:56,209 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:39:56,211 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:39:56,214 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:39:56,215 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:39:56,217 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:39:56,218 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:39:56,221 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:39:56,221 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:39:56,222 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:39:56,223 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:39:56,224 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:39:56,225 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:39:56,226 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:39:56,228 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:39:56,228 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:39:56,229 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:39:56,229 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:39:56,229 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:39:56,231 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:39:56,232 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:39:56,232 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:39:56,249 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:39:56,249 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:39:56,250 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:39:56,250 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:39:56,251 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:39:56,251 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:39:56,252 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:39:56,252 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:39:56,252 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:39:56,252 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:39:56,252 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:39:56,252 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:39:56,253 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:39:56,253 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:39:56,253 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:39:56,253 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:39:56,253 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:39:56,255 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:39:56,255 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:39:56,256 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:39:56,256 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:39:56,256 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:39:56,256 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:39:56,256 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:39:56,257 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:39:56,258 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:39:56,258 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:39:56,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:39:56,258 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-12-31 02:39:56,319 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:39:56,341 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:39:56,349 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:39:56,351 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:39:56,351 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:39:56,354 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-12-31 02:39:56,429 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a3c319e3/9ef29ef9e9634318b2f571c8a769feb8/FLAG4dc41f0a8 [2018-12-31 02:39:56,905 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:39:56,906 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-12-31 02:39:56,913 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a3c319e3/9ef29ef9e9634318b2f571c8a769feb8/FLAG4dc41f0a8 [2018-12-31 02:39:57,239 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a3c319e3/9ef29ef9e9634318b2f571c8a769feb8 [2018-12-31 02:39:57,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:39:57,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:39:57,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:39:57,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:39:57,253 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:39:57,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c00a0c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57, skipping insertion in model container [2018-12-31 02:39:57,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:39:57,286 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:39:57,484 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:39:57,489 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:39:57,504 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:39:57,517 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:39:57,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57 WrapperNode [2018-12-31 02:39:57,517 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:39:57,518 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:39:57,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:39:57,519 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:39:57,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:39:57,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:39:57,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:39:57,559 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:39:57,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (1/1) ... [2018-12-31 02:39:57,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:39:57,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:39:57,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:39:57,577 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:39:57,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (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 [2018-12-31 02:39:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:39:57,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:39:57,852 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:39:57,852 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:39:57,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:57 BoogieIcfgContainer [2018-12-31 02:39:57,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:39:57,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:39:57,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:39:57,858 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:39:57,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:39:57" (1/3) ... [2018-12-31 02:39:57,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c66f215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:39:57, skipping insertion in model container [2018-12-31 02:39:57,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:57" (2/3) ... [2018-12-31 02:39:57,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c66f215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:39:57, skipping insertion in model container [2018-12-31 02:39:57,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:57" (3/3) ... [2018-12-31 02:39:57,862 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-12-31 02:39:57,873 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:39:57,880 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:39:57,896 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:39:57,931 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:39:57,932 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:39:57,932 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:39:57,932 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:39:57,932 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:39:57,932 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:39:57,932 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:39:57,933 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:39:57,933 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:39:57,948 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-31 02:39:57,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:39:57,957 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:39:57,958 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:39:57,961 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:39:57,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:39:57,968 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:39:57,970 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:39:57,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:39:58,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:39:58,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:39:58,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:39:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:39:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:39:58,079 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:39:58,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:39:58 BoogieIcfgContainer [2018-12-31 02:39:58,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:39:58,105 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:39:58,106 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:39:58,106 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:39:58,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:57" (3/4) ... [2018-12-31 02:39:58,112 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:39:58,112 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:39:58,113 INFO L168 Benchmark]: Toolchain (without parser) took 868.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -120.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:58,116 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:58,117 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.23 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:39:58,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.80 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:58,120 INFO L168 Benchmark]: Boogie Preprocessor took 18.03 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:58,126 INFO L168 Benchmark]: RCFGBuilder took 276.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-31 02:39:58,128 INFO L168 Benchmark]: TraceAbstraction took 250.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-12-31 02:39:58,129 INFO L168 Benchmark]: Witness Printer took 6.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:58,139 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.23 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 39.80 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.03 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 276.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 250.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.71 ms. Allocated memory is still 1.1 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) [L10] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 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, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.24-2e94e6a [2018-12-31 02:40:00,649 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:40:00,651 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:40:00,663 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:40:00,664 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:40:00,665 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:40:00,666 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:40:00,668 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:40:00,670 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:40:00,670 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:40:00,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:40:00,672 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:40:00,673 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:40:00,674 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:40:00,675 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:40:00,676 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:40:00,676 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:40:00,678 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:40:00,681 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:40:00,683 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:40:00,684 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:40:00,685 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:40:00,688 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:40:00,688 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:40:00,689 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:40:00,690 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:40:00,691 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:40:00,692 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:40:00,692 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:40:00,694 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:40:00,694 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:40:00,695 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:40:00,695 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:40:00,695 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:40:00,697 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:40:00,697 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:40:00,698 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:40:00,715 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:40:00,716 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:40:00,717 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:40:00,717 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:40:00,717 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:40:00,718 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:40:00,718 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:40:00,718 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:40:00,718 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:40:00,718 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:40:00,719 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:40:00,719 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:40:00,719 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:40:00,719 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:40:00,719 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:40:00,720 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:40:00,720 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:40:00,720 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:40:00,720 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:40:00,720 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:40:00,721 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:40:00,721 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:40:00,721 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:00,721 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:40:00,721 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:40:00,722 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:40:00,722 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:40:00,722 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:40:00,722 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:40:00,722 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:40:00,722 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-12-31 02:40:00,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:40:00,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:40:00,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:40:00,818 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:40:00,818 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:40:00,819 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-12-31 02:40:00,889 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b249f62/cd2285ebc7c2489e82e8dedf00426cd8/FLAG3616a437f [2018-12-31 02:40:01,412 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:40:01,412 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-12-31 02:40:01,420 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b249f62/cd2285ebc7c2489e82e8dedf00426cd8/FLAG3616a437f [2018-12-31 02:40:01,744 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53b249f62/cd2285ebc7c2489e82e8dedf00426cd8 [2018-12-31 02:40:01,749 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:40:01,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:40:01,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:01,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:40:01,759 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:40:01,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:01" (1/1) ... [2018-12-31 02:40:01,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c5cbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:01, skipping insertion in model container [2018-12-31 02:40:01,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:01" (1/1) ... [2018-12-31 02:40:01,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:40:01,795 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:40:02,021 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:02,033 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:40:02,054 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:40:02,077 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:40:02,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02 WrapperNode [2018-12-31 02:40:02,078 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:02,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:02,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:40:02,079 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:40:02,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:40:02,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:40:02,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:40:02,127 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:40:02,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (1/1) ... [2018-12-31 02:40:02,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:40:02,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:40:02,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:40:02,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:40:02,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (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 [2018-12-31 02:40:02,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:40:02,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:40:02,472 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:40:02,473 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:40:02,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:02 BoogieIcfgContainer [2018-12-31 02:40:02,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:40:02,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:40:02,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:40:02,478 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:40:02,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:40:01" (1/3) ... [2018-12-31 02:40:02,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428e0c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:02, skipping insertion in model container [2018-12-31 02:40:02,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:02" (2/3) ... [2018-12-31 02:40:02,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@428e0c84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:40:02, skipping insertion in model container [2018-12-31 02:40:02,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:02" (3/3) ... [2018-12-31 02:40:02,482 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-12-31 02:40:02,493 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:40:02,502 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:40:02,520 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:40:02,554 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:40:02,555 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:40:02,555 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:40:02,555 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:40:02,555 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:40:02,555 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:40:02,556 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:40:02,556 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:40:02,556 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:40:02,580 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-31 02:40:02,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:40:02,588 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:40:02,590 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:40:02,593 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:40:02,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:40:02,603 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:40:02,607 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:40:02,608 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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) [2018-12-31 02:40:02,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:40:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:40:02,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:40:02,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 02:40:02,780 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:40:02,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:40:02,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 02:40:02,805 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:40:02,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:40:02,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:02,823 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-12-31 02:40:02,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:40:02,855 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2018-12-31 02:40:02,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:40:02,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-31 02:40:02,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:40:02,878 INFO L225 Difference]: With dead ends: 10 [2018-12-31 02:40:02,878 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:40:02,883 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:40:02,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:40:02,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:40:02,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:40:02,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:40:02,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-31 02:40:02,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:40:02,969 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:40:02,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:40:02,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:40:02,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:40:02,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:40:02,992 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:40:02,994 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-31 02:40:02,994 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:40:02,994 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:40:02,994 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-12-31 02:40:02,994 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-12-31 02:40:02,995 INFO L448 ceAbstractionStarter]: For program point L2(lines 2 11) no Hoare annotation was computed. [2018-12-31 02:40:02,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:40:02 BoogieIcfgContainer [2018-12-31 02:40:03,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:40:03,000 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:40:03,000 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:40:03,000 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:40:03,001 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:40:02" (3/4) ... [2018-12-31 02:40:03,008 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:40:03,019 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 02:40:03,019 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:40:03,069 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:40:03,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:40:03,070 INFO L168 Benchmark]: Toolchain (without parser) took 1321.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -113.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:03,073 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:03,073 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:03,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.48 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:03,075 INFO L168 Benchmark]: Boogie Preprocessor took 39.98 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:03,075 INFO L168 Benchmark]: RCFGBuilder took 306.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:03,077 INFO L168 Benchmark]: TraceAbstraction took 525.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:40:03,078 INFO L168 Benchmark]: Witness Printer took 69.42 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:40:03,083 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 47.48 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.98 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 306.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 525.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 69.42 ms. Allocated memory is still 1.1 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: - PositiveResult [Line: 10]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...