./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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/float3_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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 ........................................................................................................................................................................................................................................... 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/float3_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 214842803e5bf2009b57aa1e3a0f5face6e1dd52 .................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:39:59,393 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:59,394 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:59,413 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:59,414 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:59,415 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:59,416 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:59,419 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:59,420 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:59,422 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:59,423 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:59,423 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:59,424 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:59,426 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:59,427 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:59,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:59,429 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:59,431 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:59,433 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:59,435 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:59,437 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:59,438 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:59,441 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:59,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:59,442 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:59,443 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:59,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:59,445 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:59,446 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:59,448 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:59,448 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:59,449 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:59,449 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:59,450 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:59,452 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:59,452 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:59,453 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:39:59,469 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:59,471 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:59,471 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:59,472 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:59,472 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:59,473 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:59,473 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:59,473 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:59,474 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:59,474 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:39:59,474 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:59,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:59,474 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:59,474 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:59,476 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:59,476 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:59,476 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:59,476 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:59,477 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:59,477 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:59,478 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:59,478 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:59,478 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:59,478 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:59,478 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:59,479 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:59,479 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:59,479 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:39:59,479 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:59,479 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:39:59,479 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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-11-28 17:39:59,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:59,562 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:59,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:59,570 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:59,571 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:59,572 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-28 17:39:59,643 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1215463/8f06d43fa15f4aba9aa7778a5e96b526/FLAGcc5fa6c85 [2018-11-28 17:40:00,169 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:00,170 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-28 17:40:00,176 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1215463/8f06d43fa15f4aba9aa7778a5e96b526/FLAGcc5fa6c85 [2018-11-28 17:40:00,499 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1215463/8f06d43fa15f4aba9aa7778a5e96b526 [2018-11-28 17:40:00,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:00,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:00,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:00,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:00,514 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:00,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43fa62ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00, skipping insertion in model container [2018-11-28 17:40:00,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:00,550 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:00,753 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:00,759 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:00,777 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:00,796 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:00,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00 WrapperNode [2018-11-28 17:40:00,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:00,798 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:00,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:00,798 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:00,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:00,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:00,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:00,826 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:00,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (1/1) ... [2018-11-28 17:40:00,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:00,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:00,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:00,851 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:00,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (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 [2018-11-28 17:40:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:01,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:01,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:01,027 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-11-28 17:40:01,027 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-11-28 17:40:01,334 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:01,335 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:01,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:01 BoogieIcfgContainer [2018-11-28 17:40:01,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:01,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:01,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:01,341 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:01,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:00" (1/3) ... [2018-11-28 17:40:01,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d5d4b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:01, skipping insertion in model container [2018-11-28 17:40:01,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:00" (2/3) ... [2018-11-28 17:40:01,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d5d4b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:01, skipping insertion in model container [2018-11-28 17:40:01,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:01" (3/3) ... [2018-11-28 17:40:01,346 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-11-28 17:40:01,359 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:01,367 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:01,385 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:01,421 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:01,421 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:01,422 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:01,422 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:01,422 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:01,422 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:01,423 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:01,423 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:01,423 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:01,443 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-28 17:40:01,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 17:40:01,450 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:01,452 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:01,454 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:01,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:01,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-11-28 17:40:01,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:40:01,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:40:01,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:01,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:01,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:01,581 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:40:01,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:01 BoogieIcfgContainer [2018-11-28 17:40:01,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:01,615 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:01,615 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:01,616 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:01,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:01" (3/4) ... [2018-11-28 17:40:01,621 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:40:01,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:01,623 INFO L168 Benchmark]: Toolchain (without parser) took 1119.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:01,626 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:01,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.95 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:01,628 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.88 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:01,629 INFO L168 Benchmark]: Boogie Preprocessor took 24.71 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:01,630 INFO L168 Benchmark]: RCFGBuilder took 485.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:01,632 INFO L168 Benchmark]: TraceAbstraction took 277.25 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:01,632 INFO L168 Benchmark]: Witness Printer took 7.08 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. [2018-11-28 17:40:01,638 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.95 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.2 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 26.88 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.71 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 485.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 277.25 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Witness Printer took 7.08 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: 24]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 20. Possible FailurePath: [L4] double d = 0.0; VAL [\old(d)=1, d=0] [L13] int x = 2; [L15] COND TRUE __VERIFIER_nondet_int() [L16] x = 4 VAL [\old(d)=0, d=0, x=4] [L18] CALL f1() VAL [\old(d)=0, d=0] [L8] d = 1.0 VAL [\old(d)=0, d=1] [L18] RET f1() VAL [\old(d)=0, d=1, x=4] [L20] d += (x == 2) [L22] d += (x > 3) VAL [\old(d)=0, x=4] [L24] COND TRUE !(d == 2.0) VAL [\old(d)=0, x=4] [L24] __VERIFIER_error() VAL [\old(d)=0, x=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 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=19occurred 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, 14 NumberOfCodeBlocks, 14 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 0.1.24-91b1670 [2018-11-28 17:40:04,167 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:04,169 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:04,181 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:04,182 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:04,183 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:04,184 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:04,186 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:04,188 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:04,188 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:04,190 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:04,190 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:04,191 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:04,192 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:04,193 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:04,194 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:04,195 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:04,197 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:04,199 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:04,201 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:04,202 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:04,203 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:04,206 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:04,207 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:04,207 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:04,208 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:04,209 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:04,210 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:04,211 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:04,212 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:04,212 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:04,213 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:04,213 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:04,213 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:04,215 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:04,216 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:04,216 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:40:04,231 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:04,232 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:04,232 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:04,233 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:04,233 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:04,233 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:04,234 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:04,234 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:04,235 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:04,235 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:04,235 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:04,235 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:04,235 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:04,235 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:04,236 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:40:04,236 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:40:04,236 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:04,236 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:04,236 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:04,236 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:04,238 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:04,238 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:04,238 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:04,239 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:04,239 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:04,239 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:04,239 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:04,239 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:04,239 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:40:04,240 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:04,241 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:40:04,241 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:40:04,241 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 -> 214842803e5bf2009b57aa1e3a0f5face6e1dd52 [2018-11-28 17:40:04,293 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:04,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:04,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:04,318 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:04,318 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:04,319 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-28 17:40:04,378 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fc383086/299f359e17a74a7782bbdcdf4f15ac83/FLAG31b8429c5 [2018-11-28 17:40:04,813 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:04,814 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float3_true-unreach-call_true-termination.i [2018-11-28 17:40:04,820 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fc383086/299f359e17a74a7782bbdcdf4f15ac83/FLAG31b8429c5 [2018-11-28 17:40:05,201 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fc383086/299f359e17a74a7782bbdcdf4f15ac83 [2018-11-28 17:40:05,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:05,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:05,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:05,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:05,211 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:05,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605b941b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05, skipping insertion in model container [2018-11-28 17:40:05,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:05,246 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:05,488 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:05,499 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:05,518 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:05,535 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:05,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05 WrapperNode [2018-11-28 17:40:05,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:05,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:05,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:05,536 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:05,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,558 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:05,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:05,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:05,558 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:05,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,569 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,579 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (1/1) ... [2018-11-28 17:40:05,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:05,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:05,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:05,582 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:05,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (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 [2018-11-28 17:40:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:05,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:05,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:05,723 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2018-11-28 17:40:05,723 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2018-11-28 17:40:07,544 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:07,544 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:07,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:07 BoogieIcfgContainer [2018-11-28 17:40:07,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:07,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:07,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:07,549 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:07,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:05" (1/3) ... [2018-11-28 17:40:07,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdb3971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:07, skipping insertion in model container [2018-11-28 17:40:07,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:05" (2/3) ... [2018-11-28 17:40:07,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdb3971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:07, skipping insertion in model container [2018-11-28 17:40:07,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:07" (3/3) ... [2018-11-28 17:40:07,553 INFO L112 eAbstractionObserver]: Analyzing ICFG float3_true-unreach-call_true-termination.i [2018-11-28 17:40:07,564 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:07,570 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:07,586 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:07,622 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:07,623 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:07,623 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:07,623 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:07,623 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:07,624 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:07,624 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:07,624 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:07,624 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-28 17:40:07,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 17:40:07,649 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:07,650 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:07,652 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:07,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:07,658 INFO L82 PathProgramCache]: Analyzing trace with hash -1639801167, now seen corresponding path program 1 times [2018-11-28 17:40:07,662 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:07,663 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) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:07,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:07,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:08,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:08,144 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:08,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:08,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 17:40:08,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 17:40:08,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 17:40:08,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:40:08,181 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-11-28 17:40:11,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:11,119 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2018-11-28 17:40:11,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 17:40:11,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-28 17:40:11,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:11,131 INFO L225 Difference]: With dead ends: 30 [2018-11-28 17:40:11,131 INFO L226 Difference]: Without dead ends: 15 [2018-11-28 17:40:11,134 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:40:11,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-11-28 17:40:11,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 17:40:11,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 17:40:11,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2018-11-28 17:40:11,173 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2018-11-28 17:40:11,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:11,173 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2018-11-28 17:40:11,173 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 17:40:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-11-28 17:40:11,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 17:40:11,174 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:11,174 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:11,175 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:11,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:11,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1845819503, now seen corresponding path program 1 times [2018-11-28 17:40:11,176 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:11,176 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:11,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:11,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:11,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:40:11,570 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:11,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:11,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 17:40:11,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 17:40:11,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 17:40:11,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:40:11,589 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand 6 states. [2018-11-28 17:40:13,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:13,525 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-11-28 17:40:13,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 17:40:13,525 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-11-28 17:40:13,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:13,526 INFO L225 Difference]: With dead ends: 15 [2018-11-28 17:40:13,526 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:40:13,530 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:40:13,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:40:13,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:40:13,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:40:13,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:40:13,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-28 17:40:13,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:13,533 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:40:13,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 17:40:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:40:13,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:40:13,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:40:13,746 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:40:13,746 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:40:13,746 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:40:13,746 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:40:13,747 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:40:13,747 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:40:13,747 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:40:13,747 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 25) the Hoare annotation is: true [2018-11-28 17:40:13,747 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 25) no Hoare annotation was computed. [2018-11-28 17:40:13,747 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-11-28 17:40:13,747 INFO L448 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2018-11-28 17:40:13,751 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 11 25) no Hoare annotation was computed. [2018-11-28 17:40:13,751 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-28 17:40:13,751 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 16) no Hoare annotation was computed. [2018-11-28 17:40:13,752 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 15 16) the Hoare annotation is: (or (= (bvadd main_~x~0 (_ bv4294967292 32)) (_ bv0 32)) (= (bvadd main_~x~0 (_ bv4294967294 32)) (_ bv0 32))) [2018-11-28 17:40:13,752 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 24) no Hoare annotation was computed. [2018-11-28 17:40:13,752 INFO L448 ceAbstractionStarter]: For program point f1FINAL(lines 6 9) no Hoare annotation was computed. [2018-11-28 17:40:13,753 INFO L448 ceAbstractionStarter]: For program point f1EXIT(lines 6 9) no Hoare annotation was computed. [2018-11-28 17:40:13,753 INFO L451 ceAbstractionStarter]: At program point f1ENTRY(lines 6 9) the Hoare annotation is: true [2018-11-28 17:40:13,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:13 BoogieIcfgContainer [2018-11-28 17:40:13,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:13,763 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:13,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:13,764 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:13,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:07" (3/4) ... [2018-11-28 17:40:13,770 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:40:13,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:40:13,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:40:13,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2018-11-28 17:40:13,788 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 17:40:13,789 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 17:40:13,851 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:40:13,852 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:13,854 INFO L168 Benchmark]: Toolchain (without parser) took 8648.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -92.0 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:13,856 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. [2018-11-28 17:40:13,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.31 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:13,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.88 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:13,862 INFO L168 Benchmark]: Boogie Preprocessor took 23.11 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:13,863 INFO L168 Benchmark]: RCFGBuilder took 1963.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:13,864 INFO L168 Benchmark]: TraceAbstraction took 6216.60 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: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:13,869 INFO L168 Benchmark]: Witness Printer took 89.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:13,882 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 328.31 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 21.88 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.11 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1963.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -153.1 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6216.60 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: 43.4 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. * Witness Printer took 89.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: 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 4 procedures, 19 locations, 1 error locations. SAFE Result, 6.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 4.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 8 SDslu, 64 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1326 SizeOfPredicates, 4 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...