./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/loop_true-unreach-call.c --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/float-benchs/loop_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d57b69a18e01217b153b00cc1c03d5a7a42828b ....................................................................................................................................................................................................................... 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/float-benchs/loop_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d57b69a18e01217b153b00cc1c03d5a7a42828b .............................................................................................................................................................................................................................................................................................................................................................................................. 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 03:14:07,307 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:14:07,309 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:14:07,328 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:14:07,328 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:14:07,329 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:14:07,332 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:14:07,335 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:14:07,338 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:14:07,339 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:14:07,340 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:14:07,340 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:14:07,344 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:14:07,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:14:07,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:14:07,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:14:07,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:14:07,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:14:07,367 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:14:07,369 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:14:07,372 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:14:07,373 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:14:07,380 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:14:07,380 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:14:07,380 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:14:07,381 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:14:07,385 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:14:07,386 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:14:07,390 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:14:07,393 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:14:07,393 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:14:07,394 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:14:07,394 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:14:07,394 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:14:07,395 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:14:07,398 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:14:07,399 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 03:14:07,433 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:14:07,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:14:07,436 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:14:07,437 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:14:07,437 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:14:07,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:14:07,438 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:14:07,438 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 03:14:07,438 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:14:07,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:14:07,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:14:07,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:14:07,439 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:14:07,439 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:14:07,439 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:14:07,439 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:14:07,439 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:14:07,441 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:14:07,441 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:14:07,442 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:14:07,442 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:14:07,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:14:07,442 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:14:07,442 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:14:07,442 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:14:07,443 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 03:14:07,443 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:14:07,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 03:14:07,444 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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-12-31 03:14:07,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:14:07,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:14:07,516 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:14:07,518 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:14:07,519 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:14:07,520 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/loop_true-unreach-call.c [2018-12-31 03:14:07,590 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6206906e/9f264dfd008549929b23769b6a8b7cd3/FLAGfe32be905 [2018-12-31 03:14:08,077 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:14:08,078 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/loop_true-unreach-call.c [2018-12-31 03:14:08,085 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6206906e/9f264dfd008549929b23769b6a8b7cd3/FLAGfe32be905 [2018-12-31 03:14:08,433 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6206906e/9f264dfd008549929b23769b6a8b7cd3 [2018-12-31 03:14:08,437 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:14:08,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:14:08,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:14:08,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:14:08,444 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:14:08,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b64fabb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08, skipping insertion in model container [2018-12-31 03:14:08,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:14:08,475 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:14:08,652 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:14:08,658 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:14:08,676 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:14:08,690 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:14:08,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08 WrapperNode [2018-12-31 03:14:08,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:14:08,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:14:08,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:14:08,692 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:14:08,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:14:08,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:14:08,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:14:08,728 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:14:08,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (1/1) ... [2018-12-31 03:14:08,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:14:08,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:14:08,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:14:08,748 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:14:08,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (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 03:14:08,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:14:08,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:14:09,075 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:14:09,075 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 03:14:09,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:14:09 BoogieIcfgContainer [2018-12-31 03:14:09,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:14:09,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:14:09,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:14:09,080 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:14:09,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:14:08" (1/3) ... [2018-12-31 03:14:09,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4ff76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:14:09, skipping insertion in model container [2018-12-31 03:14:09,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:08" (2/3) ... [2018-12-31 03:14:09,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4ff76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:14:09, skipping insertion in model container [2018-12-31 03:14:09,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:14:09" (3/3) ... [2018-12-31 03:14:09,083 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-12-31 03:14:09,093 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:14:09,101 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:14:09,119 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:14:09,155 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:14:09,156 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:14:09,156 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:14:09,156 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:14:09,156 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:14:09,156 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:14:09,157 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:14:09,157 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:14:09,157 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:14:09,172 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 03:14:09,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 03:14:09,178 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:14:09,179 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 03:14:09,182 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:14:09,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:14:09,189 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2018-12-31 03:14:09,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 03:14:09,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 03:14:09,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:14:09,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:14:09,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 03:14:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:14:09,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 03:14:09,310 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 03:14:09,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:14:09 BoogieIcfgContainer [2018-12-31 03:14:09,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:14:09,328 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:14:09,328 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:14:09,328 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:14:09,329 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:14:09" (3/4) ... [2018-12-31 03:14:09,333 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 03:14:09,333 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:14:09,334 INFO L168 Benchmark]: Toolchain (without parser) took 896.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:14:09,337 INFO L168 Benchmark]: CDTParser took 0.21 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 03:14:09,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.05 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 03:14:09,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.42 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 03:14:09,341 INFO L168 Benchmark]: Boogie Preprocessor took 20.15 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 03:14:09,342 INFO L168 Benchmark]: RCFGBuilder took 328.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-31 03:14:09,343 INFO L168 Benchmark]: TraceAbstraction took 250.46 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:14:09,344 INFO L168 Benchmark]: Witness Printer took 5.73 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. [2018-12-31 03:14:09,349 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 252.05 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.42 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 20.15 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 328.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 250.46 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.73 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: 2]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 18, overapproximation of someBinaryDOUBLEComparisonOperation at line 18. Possible FailurePath: [L6] float x, y, z; [L8] x = 1.f [L9] y = 1e7 [L10] z = 42.f [L12] COND FALSE !(x < y) [L2] COND TRUE !(cond) [L2] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 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=10occurred 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, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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 03:14:11,779 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 03:14:11,782 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 03:14:11,795 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 03:14:11,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 03:14:11,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 03:14:11,798 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 03:14:11,800 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 03:14:11,802 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 03:14:11,803 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 03:14:11,804 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 03:14:11,804 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 03:14:11,805 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 03:14:11,810 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 03:14:11,813 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 03:14:11,814 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 03:14:11,815 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 03:14:11,817 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 03:14:11,819 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 03:14:11,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 03:14:11,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 03:14:11,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 03:14:11,825 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 03:14:11,826 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 03:14:11,826 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 03:14:11,827 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 03:14:11,828 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 03:14:11,829 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 03:14:11,830 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 03:14:11,831 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 03:14:11,831 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 03:14:11,832 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 03:14:11,832 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 03:14:11,832 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 03:14:11,833 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 03:14:11,834 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 03:14:11,834 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 03:14:11,850 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 03:14:11,850 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 03:14:11,851 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 03:14:11,852 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 03:14:11,852 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 03:14:11,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 03:14:11,852 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 03:14:11,852 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 03:14:11,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 03:14:11,853 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 03:14:11,853 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 03:14:11,853 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 03:14:11,853 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 03:14:11,853 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 03:14:11,854 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 03:14:11,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 03:14:11,854 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 03:14:11,854 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 03:14:11,854 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 03:14:11,855 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 03:14:11,855 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 03:14:11,855 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 03:14:11,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 03:14:11,855 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 03:14:11,855 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 03:14:11,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 03:14:11,856 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 03:14:11,856 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 03:14:11,856 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 03:14:11,856 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 03:14:11,856 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 -> 5d57b69a18e01217b153b00cc1c03d5a7a42828b [2018-12-31 03:14:11,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 03:14:11,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 03:14:11,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 03:14:11,938 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 03:14:11,939 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 03:14:11,940 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/loop_true-unreach-call.c [2018-12-31 03:14:12,003 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9c2e738/1bf04c9bf981443b92da2e6a3e98d14f/FLAGc238e28bb [2018-12-31 03:14:12,518 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 03:14:12,518 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/loop_true-unreach-call.c [2018-12-31 03:14:12,525 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9c2e738/1bf04c9bf981443b92da2e6a3e98d14f/FLAGc238e28bb [2018-12-31 03:14:12,846 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa9c2e738/1bf04c9bf981443b92da2e6a3e98d14f [2018-12-31 03:14:12,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 03:14:12,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 03:14:12,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 03:14:12,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 03:14:12,857 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 03:14:12,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:14:12" (1/1) ... [2018-12-31 03:14:12,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f67e5e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:12, skipping insertion in model container [2018-12-31 03:14:12,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 03:14:12" (1/1) ... [2018-12-31 03:14:12,872 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 03:14:12,890 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 03:14:13,080 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:14:13,095 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 03:14:13,121 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 03:14:13,142 INFO L195 MainTranslator]: Completed translation [2018-12-31 03:14:13,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13 WrapperNode [2018-12-31 03:14:13,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 03:14:13,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 03:14:13,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 03:14:13,144 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 03:14:13,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 03:14:13,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 03:14:13,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 03:14:13,196 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 03:14:13,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (1/1) ... [2018-12-31 03:14:13,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 03:14:13,251 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 03:14:13,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 03:14:13,251 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 03:14:13,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (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 03:14:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 03:14:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 03:14:14,052 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 03:14:14,053 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 03:14:14,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:14:14 BoogieIcfgContainer [2018-12-31 03:14:14,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 03:14:14,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 03:14:14,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 03:14:14,058 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 03:14:14,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 03:14:12" (1/3) ... [2018-12-31 03:14:14,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfcb83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:14:14, skipping insertion in model container [2018-12-31 03:14:14,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 03:14:13" (2/3) ... [2018-12-31 03:14:14,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bfcb83b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 03:14:14, skipping insertion in model container [2018-12-31 03:14:14,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:14:14" (3/3) ... [2018-12-31 03:14:14,063 INFO L112 eAbstractionObserver]: Analyzing ICFG loop_true-unreach-call.c [2018-12-31 03:14:14,072 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 03:14:14,081 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 03:14:14,101 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 03:14:14,135 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 03:14:14,136 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 03:14:14,137 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 03:14:14,137 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 03:14:14,137 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 03:14:14,137 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 03:14:14,138 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 03:14:14,138 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 03:14:14,138 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 03:14:14,155 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 03:14:14,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 03:14:14,164 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:14:14,165 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 03:14:14,168 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:14:14,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:14:14,175 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2018-12-31 03:14:14,179 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:14:14,180 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 [2018-12-31 03:14:14,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 03:14:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:14:14,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:14:14,309 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 03:14:14,309 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 03:14:14,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 03:14:14,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 03:14:14,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 03:14:14,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 03:14:14,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 03:14:14,355 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-12-31 03:14:14,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:14:14,700 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-12-31 03:14:14,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 03:14:14,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2018-12-31 03:14:14,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:14:14,712 INFO L225 Difference]: With dead ends: 19 [2018-12-31 03:14:14,712 INFO L226 Difference]: Without dead ends: 7 [2018-12-31 03:14:14,715 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 03:14:14,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-12-31 03:14:14,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-31 03:14:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-31 03:14:14,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-12-31 03:14:14,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2018-12-31 03:14:14,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:14:14,755 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-12-31 03:14:14,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 03:14:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-31 03:14:14,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 03:14:14,755 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:14:14,756 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 03:14:14,756 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:14:14,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:14:14,756 INFO L82 PathProgramCache]: Analyzing trace with hash 925620370, now seen corresponding path program 1 times [2018-12-31 03:14:14,757 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:14:14,757 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) [2018-12-31 03:14:14,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-31 03:14:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 03:14:14,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:14:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:14:14,948 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-31 03:14:19,513 WARN L181 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-31 03:14:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:14:19,533 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 03:14:19,533 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-12-31 03:14:19,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 03:14:19,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 03:14:19,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2018-12-31 03:14:19,536 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2018-12-31 03:14:28,525 WARN L181 SmtUtils]: Spent 2.96 s on a formula simplification that was a NOOP. DAG size: 10 [2018-12-31 03:14:32,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:14:32,028 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-12-31 03:14:32,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 03:14:32,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2018-12-31 03:14:32,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:14:32,029 INFO L225 Difference]: With dead ends: 14 [2018-12-31 03:14:32,030 INFO L226 Difference]: Without dead ends: 10 [2018-12-31 03:14:32,031 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=19, Invalid=21, Unknown=2, NotChecked=0, Total=42 [2018-12-31 03:14:32,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-12-31 03:14:32,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-31 03:14:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-31 03:14:32,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-12-31 03:14:32,035 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 6 [2018-12-31 03:14:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:14:32,036 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-12-31 03:14:32,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 03:14:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-12-31 03:14:32,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-31 03:14:32,036 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 03:14:32,037 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1] [2018-12-31 03:14:32,037 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 03:14:32,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 03:14:32,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1174852536, now seen corresponding path program 2 times [2018-12-31 03:14:32,038 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 03:14:32,038 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-31 03:14:32,046 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-31 03:14:32,344 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-31 03:14:32,344 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 03:14:32,381 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 03:14:32,901 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 03:14:32,901 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-31 03:14:33,981 WARN L181 SmtUtils]: Spent 473.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-12-31 03:14:43,740 WARN L181 SmtUtils]: Spent 2.67 s on a formula simplification that was a NOOP. DAG size: 12 [2018-12-31 03:15:03,527 WARN L181 SmtUtils]: Spent 5.10 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-31 03:15:05,557 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_ULTIMATE.start_main_~z~0 .cse1) .cse1) .cse1)))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq .cse0 (_ +zero 8 24)))) is different from false [2018-12-31 03:15:07,583 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_ULTIMATE.start_main_~z~0 .cse1) .cse1) .cse1)))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq .cse0 (_ +zero 8 24)))) is different from true [2018-12-31 03:15:09,621 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_ULTIMATE.start_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)))) is different from false [2018-12-31 03:15:11,646 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_ULTIMATE.start_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)))) is different from true [2018-12-31 03:15:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 7 not checked. [2018-12-31 03:15:11,663 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 03:15:11,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2018-12-31 03:15:11,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-12-31 03:15:11,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-12-31 03:15:11,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=91, Unknown=7, NotChecked=42, Total=182 [2018-12-31 03:15:11,667 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 14 states. [2018-12-31 03:15:13,722 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven c_ULTIMATE.start_main_~z~0 .cse1) .cse1) .cse1) .cse1)))) (and (= ((_ to_fp 8 24) roundNearestTiesToEven 42.0) c_ULTIMATE.start_main_~z~0) (fp.geq .cse0 (_ +zero 8 24)) (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)))) is different from true [2018-12-31 03:15:34,769 WARN L181 SmtUtils]: Spent 7.10 s on a formula simplification. DAG size of input: 15 DAG size of output: 12 [2018-12-31 03:15:57,820 WARN L181 SmtUtils]: Spent 14.16 s on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-12-31 03:15:57,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 03:15:57,821 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-12-31 03:15:57,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-31 03:15:57,822 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 9 [2018-12-31 03:15:57,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 03:15:57,822 INFO L225 Difference]: With dead ends: 13 [2018-12-31 03:15:57,822 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 03:15:57,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 74.7s TimeCoverageRelationStatistics Valid=71, Invalid=143, Unknown=8, NotChecked=84, Total=306 [2018-12-31 03:15:57,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 03:15:57,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 03:15:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 03:15:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 03:15:57,825 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-12-31 03:15:57,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 03:15:57,825 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 03:15:57,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-12-31 03:15:57,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 03:15:57,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 03:15:57,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 03:16:30,948 WARN L181 SmtUtils]: Spent 33.05 s on a formula simplification. DAG size of input: 49 DAG size of output: 12 [2018-12-31 03:16:30,951 INFO L448 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2018-12-31 03:16:30,952 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 03:16:30,952 INFO L451 ceAbstractionStarter]: At program point L2-3(line 2) the Hoare annotation is: true [2018-12-31 03:16:30,952 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2018-12-31 03:16:30,952 INFO L451 ceAbstractionStarter]: At program point L19(lines 4 20) the Hoare annotation is: true [2018-12-31 03:16:30,953 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 03:16:30,953 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 03:16:30,953 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 16) the Hoare annotation is: (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (fp.add roundNearestTiesToEven ULTIMATE.start_main_~z~0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) ((_ to_fp 11 53) roundNearestTiesToEven 100000000.0)) (fp.geq ULTIMATE.start_main_~z~0 (_ +zero 8 24))) [2018-12-31 03:16:30,953 INFO L448 ceAbstractionStarter]: For program point L12-3(lines 12 16) no Hoare annotation was computed. [2018-12-31 03:16:30,953 INFO L448 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2018-12-31 03:16:30,962 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:30,963 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:30,963 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:30,963 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:30,966 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:30,966 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:30,966 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:30,967 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:30,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 03:16:30 BoogieIcfgContainer [2018-12-31 03:16:30,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 03:16:30,970 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 03:16:30,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 03:16:30,971 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 03:16:30,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 03:14:14" (3/4) ... [2018-12-31 03:16:30,976 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 03:16:30,987 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 03:16:30,987 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 03:16:31,034 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 03:16:31,034 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 03:16:31,035 INFO L168 Benchmark]: Toolchain (without parser) took 138185.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -71.6 MB). Peak memory consumption was 72.6 MB. Max. memory is 11.5 GB. [2018-12-31 03:16:31,037 INFO L168 Benchmark]: CDTParser took 0.17 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 03:16:31,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.01 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 03:16:31,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.26 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 03:16:31,039 INFO L168 Benchmark]: Boogie Preprocessor took 55.30 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:16:31,040 INFO L168 Benchmark]: RCFGBuilder took 802.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 03:16:31,042 INFO L168 Benchmark]: TraceAbstraction took 136915.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 94.2 MB). Peak memory consumption was 94.2 MB. Max. memory is 11.5 GB. [2018-12-31 03:16:31,043 INFO L168 Benchmark]: Witness Printer took 64.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 03:16:31,047 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 290.01 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 51.26 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 55.30 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 936.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 802.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 136915.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 94.2 MB). Peak memory consumption was 94.2 MB. Max. memory is 11.5 GB. * Witness Printer took 64.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 2]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant [2018-12-31 03:16:31,058 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:31,058 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:31,058 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:31,059 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:31,059 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:31,060 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:31,060 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-31 03:16:31,060 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.leq~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.add~FLOAT(~roundNearestTiesToEven, z, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E8)) && ~fp.geq~FLOAT(z, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. SAFE Result, 136.8s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 59.0s AutomataDifference, 0.0s DeadEndRemovalTime, 33.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 7 SDslu, 22 SDs, 0 SdLazy, 52 SolverSat, 8 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 16.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 85.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 18 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 183 FormulaSimplificationTreeSizeReductionInter, 33.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 44.0s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2554 SizeOfPredicates, 7 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...