./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c --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/float-benchs/float_double_true-unreach-call_true-termination.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 773baadb55b498633b84884838d360efb3aec808 ................................................................................................................................................................................................................................. 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/float_double_true-unreach-call_true-termination.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 773baadb55b498633b84884838d360efb3aec808 ............................................................................................................................................................................................................................................................................ 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 17:42:09,388 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:42:09,389 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:42:09,408 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:42:09,410 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:42:09,411 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:42:09,414 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:42:09,425 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:42:09,427 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:42:09,428 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:42:09,432 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:42:09,433 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:42:09,434 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:42:09,435 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:42:09,441 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:42:09,443 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:42:09,444 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:42:09,449 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:42:09,453 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:42:09,462 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:42:09,463 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:42:09,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:42:09,471 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:42:09,472 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:42:09,473 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:42:09,474 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:42:09,474 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:42:09,475 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:42:09,476 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:42:09,480 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:42:09,480 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:42:09,481 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:42:09,481 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:42:09,481 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:42:09,483 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:42:09,485 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:42:09,486 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:42:09,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:42:09,518 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:42:09,519 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:42:09,519 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:42:09,521 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:42:09,522 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:42:09,522 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:42:09,522 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:42:09,523 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:42:09,523 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:42:09,524 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:42:09,524 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:42:09,524 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:42:09,524 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:42:09,524 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:42:09,525 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:42:09,525 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:42:09,525 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:42:09,525 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:42:09,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:42:09,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:42:09,528 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:42:09,529 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:42:09,529 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:42:09,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:42:09,529 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:42:09,529 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:42:09,530 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:42:09,530 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:42:09,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:42:09,530 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 -> 773baadb55b498633b84884838d360efb3aec808 [2018-11-28 17:42:09,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:42:09,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:42:09,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:42:09,616 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:42:09,617 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:42:09,618 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c [2018-11-28 17:42:09,689 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51e58095/5c369aef10fe47009c167b4ec16cbc8b/FLAG45068821c [2018-11-28 17:42:10,173 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:42:10,174 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c [2018-11-28 17:42:10,180 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51e58095/5c369aef10fe47009c167b4ec16cbc8b/FLAG45068821c [2018-11-28 17:42:10,536 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51e58095/5c369aef10fe47009c167b4ec16cbc8b [2018-11-28 17:42:10,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:42:10,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:42:10,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:42:10,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:42:10,546 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:42:10,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5530d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10, skipping insertion in model container [2018-11-28 17:42:10,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:42:10,578 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:42:10,767 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:42:10,777 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:42:10,795 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:42:10,813 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:42:10,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10 WrapperNode [2018-11-28 17:42:10,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:42:10,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:42:10,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:42:10,815 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:42:10,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:42:10,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:42:10,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:42:10,845 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:42:10,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,858 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (1/1) ... [2018-11-28 17:42:10,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:42:10,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:42:10,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:42:10,875 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:42:10,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (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 17:42:11,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:42:11,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:42:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:42:11,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:42:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:42:11,062 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:42:11,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:42:11,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:42:11,256 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:42:11,256 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:42:11,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:42:11 BoogieIcfgContainer [2018-11-28 17:42:11,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:42:11,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:42:11,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:42:11,261 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:42:11,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:42:10" (1/3) ... [2018-11-28 17:42:11,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4751ab27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:42:11, skipping insertion in model container [2018-11-28 17:42:11,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:10" (2/3) ... [2018-11-28 17:42:11,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4751ab27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:42:11, skipping insertion in model container [2018-11-28 17:42:11,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:42:11" (3/3) ... [2018-11-28 17:42:11,265 INFO L112 eAbstractionObserver]: Analyzing ICFG float_double_true-unreach-call_true-termination.c [2018-11-28 17:42:11,276 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:42:11,284 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:42:11,300 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:42:11,333 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:42:11,334 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:42:11,334 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:42:11,334 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:42:11,334 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:42:11,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:42:11,335 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:42:11,335 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:42:11,335 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:42:11,357 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 17:42:11,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:42:11,364 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:42:11,365 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:42:11,368 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:42:11,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:42:11,375 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 17:42:11,377 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:42:11,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:42:11,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:42:11,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:42:11,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:42:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:42:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:42:11,481 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:42:11,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:42:11 BoogieIcfgContainer [2018-11-28 17:42:11,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:42:11,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:42:11,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:42:11,510 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:42:11,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:42:11" (3/4) ... [2018-11-28 17:42:11,515 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:42:11,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:42:11,516 INFO L168 Benchmark]: Toolchain (without parser) took 976.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:42:11,519 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 17:42:11,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.58 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. [2018-11-28 17:42:11,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.59 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. [2018-11-28 17:42:11,522 INFO L168 Benchmark]: Boogie Preprocessor took 30.65 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. [2018-11-28 17:42:11,523 INFO L168 Benchmark]: RCFGBuilder took 381.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:42:11,524 INFO L168 Benchmark]: TraceAbstraction took 251.59 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:42:11,525 INFO L168 Benchmark]: Witness Printer took 5.83 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 17:42:11,530 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 272.58 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 28.59 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 30.65 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 381.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 251.59 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L8] double x = 1e20 + 1.; [L9] float y = x; VAL [x=2, y=2] [L10] CALL __VERIFIER_assert(x != y) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 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=17occurred 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, 9 NumberOfCodeBlocks, 9 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 17:42:13,974 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:42:13,976 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:42:13,995 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:42:13,995 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:42:13,996 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:42:13,998 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:42:14,000 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:42:14,002 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:42:14,003 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:42:14,004 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:42:14,004 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:42:14,005 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:42:14,006 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:42:14,007 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:42:14,008 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:42:14,009 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:42:14,012 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:42:14,014 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:42:14,017 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:42:14,018 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:42:14,019 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:42:14,022 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:42:14,022 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:42:14,023 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:42:14,024 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:42:14,025 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:42:14,026 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:42:14,027 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:42:14,028 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:42:14,028 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:42:14,029 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:42:14,029 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:42:14,030 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:42:14,031 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:42:14,031 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:42:14,032 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:42:14,050 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:42:14,050 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:42:14,051 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:42:14,051 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:42:14,052 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:42:14,052 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:42:14,053 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:42:14,053 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:42:14,053 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:42:14,053 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:42:14,059 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:42:14,059 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:42:14,059 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:42:14,060 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:42:14,060 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:42:14,060 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:42:14,060 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:42:14,060 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:42:14,061 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:42:14,061 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:42:14,061 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:42:14,061 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:42:14,061 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:42:14,062 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:42:14,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:42:14,062 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:42:14,062 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:42:14,063 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:42:14,066 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:42:14,066 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:42:14,066 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:42:14,066 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:42:14,067 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 -> 773baadb55b498633b84884838d360efb3aec808 [2018-11-28 17:42:14,116 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:42:14,137 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:42:14,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:42:14,146 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:42:14,147 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:42:14,148 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c [2018-11-28 17:42:14,221 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f7ca54f/348194caa2fc4f5fb71e416af311b3ce/FLAGc1712a494 [2018-11-28 17:42:14,681 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:42:14,681 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/float_double_true-unreach-call_true-termination.c [2018-11-28 17:42:14,688 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f7ca54f/348194caa2fc4f5fb71e416af311b3ce/FLAGc1712a494 [2018-11-28 17:42:15,024 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f7ca54f/348194caa2fc4f5fb71e416af311b3ce [2018-11-28 17:42:15,031 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:42:15,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:42:15,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:42:15,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:42:15,039 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:42:15,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac9139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15, skipping insertion in model container [2018-11-28 17:42:15,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:42:15,071 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:42:15,284 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:42:15,292 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:42:15,307 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:42:15,323 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:42:15,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15 WrapperNode [2018-11-28 17:42:15,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:42:15,324 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:42:15,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:42:15,325 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:42:15,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,347 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:42:15,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:42:15,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:42:15,348 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:42:15,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (1/1) ... [2018-11-28 17:42:15,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:42:15,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:42:15,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:42:15,373 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:42:15,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (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 17:42:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:42:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:42:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:42:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:42:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:42:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:42:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:42:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:42:15,696 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:42:15,697 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:42:15,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:42:15 BoogieIcfgContainer [2018-11-28 17:42:15,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:42:15,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:42:15,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:42:15,702 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:42:15,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:42:15" (1/3) ... [2018-11-28 17:42:15,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ffd171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:42:15, skipping insertion in model container [2018-11-28 17:42:15,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:42:15" (2/3) ... [2018-11-28 17:42:15,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ffd171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:42:15, skipping insertion in model container [2018-11-28 17:42:15,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:42:15" (3/3) ... [2018-11-28 17:42:15,706 INFO L112 eAbstractionObserver]: Analyzing ICFG float_double_true-unreach-call_true-termination.c [2018-11-28 17:42:15,717 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:42:15,724 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:42:15,742 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:42:15,777 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:42:15,778 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:42:15,778 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:42:15,778 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:42:15,778 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:42:15,778 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:42:15,778 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:42:15,779 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:42:15,779 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:42:15,799 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 17:42:15,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:42:15,804 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:42:15,806 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:42:15,808 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:42:15,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:42:15,814 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 17:42:15,819 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:42:15,819 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 17:42:15,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:42:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:42:15,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:42:16,307 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 17:42:16,308 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:42:16,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:42:16,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 17:42:16,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 17:42:16,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 17:42:16,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:42:16,341 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-11-28 17:42:16,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:42:16,620 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-11-28 17:42:16,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 17:42:16,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-28 17:42:16,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:42:16,634 INFO L225 Difference]: With dead ends: 24 [2018-11-28 17:42:16,634 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:42:16,638 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 17:42:16,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:42:16,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:42:16,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:42:16,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:42:16,668 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-11-28 17:42:16,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:42:16,668 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:42:16,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 17:42:16,669 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:42:16,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:42:16,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:42:16,765 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:42:16,765 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:42:16,765 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:42:16,765 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:42:16,765 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:42:16,766 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:42:16,766 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 6 12) the Hoare annotation is: true [2018-11-28 17:42:16,766 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 6 12) no Hoare annotation was computed. [2018-11-28 17:42:16,766 INFO L444 ceAbstractionStarter]: At program point L10(line 10) the Hoare annotation is: (= (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 100000000000000000000.0) ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) main_~x~0) [2018-11-28 17:42:16,767 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-28 17:42:16,767 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 6 12) no Hoare annotation was computed. [2018-11-28 17:42:16,767 INFO L448 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-11-28 17:42:16,767 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-28 17:42:16,768 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-11-28 17:42:16,768 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-11-28 17:42:16,768 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-28 17:42:16,768 INFO L448 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-11-28 17:42:16,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:42:16 BoogieIcfgContainer [2018-11-28 17:42:16,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:42:16,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:42:16,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:42:16,773 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:42:16,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:42:15" (3/4) ... [2018-11-28 17:42:16,777 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:42:16,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:42:16,786 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:42:16,787 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 17:42:16,791 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 17:42:16,791 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:42:16,792 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:42:16,835 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:42:16,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:42:16,836 INFO L168 Benchmark]: Toolchain (without parser) took 1804.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -91.3 MB). Peak memory consumption was 6.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:42:16,838 INFO L168 Benchmark]: CDTParser took 1.09 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 17:42:16,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.49 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:42:16,839 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.96 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:42:16,840 INFO L168 Benchmark]: Boogie Preprocessor took 24.38 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:42:16,840 INFO L168 Benchmark]: RCFGBuilder took 325.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:42:16,841 INFO L168 Benchmark]: TraceAbstraction took 1073.64 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:42:16,842 INFO L168 Benchmark]: Witness Printer took 62.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 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 17:42:16,847 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09 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 289.49 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 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 22.96 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.38 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 325.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1073.64 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 62.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 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: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 15 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 2 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...