/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/float_double_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/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 ../../../trunk/examples/svcomp/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 0.1.23-40ef509 [2018-09-20 14:04:04,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:04:04,458 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:04:04,471 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:04:04,472 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:04:04,473 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:04:04,475 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:04:04,477 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:04:04,479 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:04:04,481 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:04:04,482 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:04:04,482 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:04:04,484 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:04:04,485 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:04:04,487 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:04:04,488 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:04:04,489 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:04:04,491 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:04:04,494 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:04:04,496 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:04:04,497 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:04:04,499 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:04:04,502 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:04:04,502 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:04:04,503 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:04:04,504 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:04:04,506 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:04:04,507 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:04:04,508 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:04:04,510 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:04:04,510 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:04:04,511 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:04:04,511 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:04:04,512 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:04:04,513 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:04:04,514 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:04:04,515 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 14:04:04,532 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:04:04,532 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:04:04,533 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:04:04,533 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:04:04,534 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:04:04,535 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:04:04,535 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:04:04,535 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:04:04,535 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:04:04,536 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 14:04:04,536 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:04:04,536 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:04:04,536 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:04:04,536 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:04:04,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:04:04,538 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:04:04,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:04:04,538 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:04:04,539 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:04:04,539 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:04:04,539 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:04:04,539 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:04:04,540 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:04:04,540 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:04:04,540 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:04:04,540 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:04:04,540 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 14:04:04,540 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:04:04,541 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 14:04:04,541 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 [2018-09-20 14:04:04,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:04:04,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:04:04,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:04:04,616 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:04:04,616 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:04:04,617 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/float_double_true-unreach-call_true-termination.c [2018-09-20 14:04:04,961 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adefc37a0/f5bc7681c2ad4ed8bca164b5332bea17/FLAG3fa456280 [2018-09-20 14:04:05,146 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:04:05,147 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/float_double_true-unreach-call_true-termination.c [2018-09-20 14:04:05,157 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adefc37a0/f5bc7681c2ad4ed8bca164b5332bea17/FLAG3fa456280 [2018-09-20 14:04:05,188 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adefc37a0/f5bc7681c2ad4ed8bca164b5332bea17 [2018-09-20 14:04:05,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:04:05,200 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:04:05,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:04:05,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:04:05,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:04:05,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@639eb43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05, skipping insertion in model container [2018-09-20 14:04:05,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,236 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:04:05,448 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:04:05,471 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:04:05,475 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:04:05,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05 WrapperNode [2018-09-20 14:04:05,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:04:05,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:04:05,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:04:05,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:04:05,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (1/1) ... [2018-09-20 14:04:05,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:04:05,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:04:05,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:04:05,520 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:04:05,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:04:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:04:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:04:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:04:05,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:04:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:04:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:04:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:04:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:04:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:04:05,828 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:04:05,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:04:05 BoogieIcfgContainer [2018-09-20 14:04:05,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:04:05,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:04:05,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:04:05,841 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:04:05,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:04:05" (1/3) ... [2018-09-20 14:04:05,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7c3e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:04:05, skipping insertion in model container [2018-09-20 14:04:05,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:05" (2/3) ... [2018-09-20 14:04:05,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7c3e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:04:05, skipping insertion in model container [2018-09-20 14:04:05,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:04:05" (3/3) ... [2018-09-20 14:04:05,849 INFO L112 eAbstractionObserver]: Analyzing ICFG float_double_true-unreach-call_true-termination.c [2018-09-20 14:04:05,864 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:04:05,884 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:04:05,951 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:04:05,952 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:04:05,952 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:04:05,953 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:04:05,953 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:04:05,953 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:04:05,953 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:04:05,953 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:04:05,953 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:04:05,980 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-20 14:04:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-20 14:04:05,994 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:04:05,996 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:04:06,000 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:04:06,010 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-09-20 14:04:06,013 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 14:04:06,014 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 14:04:06,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:04:06,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 14:04:06,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 14:04:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:04:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 14:04:06,176 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 14:04:06,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:04:06 BoogieIcfgContainer [2018-09-20 14:04:06,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:04:06,210 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:04:06,210 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:04:06,211 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:04:06,211 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:04:05" (3/4) ... [2018-09-20 14:04:06,220 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 14:04:06,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:04:06,222 INFO L168 Benchmark]: Toolchain (without parser) took 1028.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:04:06,227 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:04:06,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.55 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:04:06,231 INFO L168 Benchmark]: Boogie Preprocessor took 27.13 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:04:06,231 INFO L168 Benchmark]: RCFGBuilder took 309.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-09-20 14:04:06,234 INFO L168 Benchmark]: TraceAbstraction took 378.31 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: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-09-20 14:04:06,236 INFO L168 Benchmark]: Witness Printer took 11.81 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. [2018-09-20 14:04:06,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.55 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.13 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 309.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 378.31 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: 15.5 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * Witness Printer took 11.81 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 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, 0.2s 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 0.1.23-40ef509 [2018-09-20 14:04:08,818 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 14:04:08,820 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 14:04:08,833 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 14:04:08,834 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 14:04:08,835 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 14:04:08,837 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 14:04:08,839 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 14:04:08,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 14:04:08,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 14:04:08,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 14:04:08,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 14:04:08,844 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 14:04:08,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 14:04:08,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 14:04:08,848 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 14:04:08,849 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 14:04:08,851 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 14:04:08,854 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 14:04:08,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 14:04:08,857 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 14:04:08,858 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 14:04:08,861 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 14:04:08,861 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 14:04:08,861 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 14:04:08,862 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 14:04:08,864 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 14:04:08,865 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 14:04:08,866 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 14:04:08,867 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 14:04:08,868 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 14:04:08,869 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 14:04:08,869 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 14:04:08,869 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 14:04:08,871 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 14:04:08,872 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 14:04:08,872 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 14:04:08,898 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 14:04:08,900 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 14:04:08,901 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 14:04:08,901 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 14:04:08,902 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 14:04:08,903 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 14:04:08,903 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 14:04:08,904 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 14:04:08,904 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 14:04:08,904 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 14:04:08,904 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 14:04:08,905 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 14:04:08,905 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 14:04:08,906 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 14:04:08,906 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 14:04:08,906 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 14:04:08,906 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 14:04:08,906 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 14:04:08,906 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 14:04:08,907 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 14:04:08,907 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 14:04:08,907 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 14:04:08,907 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 14:04:08,907 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 14:04:08,910 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 14:04:08,910 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 14:04:08,910 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 14:04:08,910 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 14:04:08,911 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 14:04:08,911 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 14:04:08,911 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 14:04:08,911 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 [2018-09-20 14:04:08,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 14:04:09,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 14:04:09,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 14:04:09,012 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 14:04:09,012 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 14:04:09,013 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/float_double_true-unreach-call_true-termination.c [2018-09-20 14:04:09,392 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b12c72b4/85251bf465a1410b937c5d1b56dedf0d/FLAG00e4240a5 [2018-09-20 14:04:09,530 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 14:04:09,531 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/float_double_true-unreach-call_true-termination.c [2018-09-20 14:04:09,537 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b12c72b4/85251bf465a1410b937c5d1b56dedf0d/FLAG00e4240a5 [2018-09-20 14:04:09,556 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b12c72b4/85251bf465a1410b937c5d1b56dedf0d [2018-09-20 14:04:09,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 14:04:09,570 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 14:04:09,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 14:04:09,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 14:04:09,582 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 14:04:09,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7450b54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09, skipping insertion in model container [2018-09-20 14:04:09,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,600 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 14:04:09,798 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:04:09,819 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 14:04:09,823 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 14:04:09,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09 WrapperNode [2018-09-20 14:04:09,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 14:04:09,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 14:04:09,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 14:04:09,840 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 14:04:09,856 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (1/1) ... [2018-09-20 14:04:09,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 14:04:09,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 14:04:09,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 14:04:09,876 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 14:04:09,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (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 [2018-09-20 14:04:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 14:04:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 14:04:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 14:04:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 14:04:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 14:04:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 14:04:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 14:04:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 14:04:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 14:04:10,173 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 14:04:10,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:04:10 BoogieIcfgContainer [2018-09-20 14:04:10,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 14:04:10,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 14:04:10,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 14:04:10,179 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 14:04:10,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 02:04:09" (1/3) ... [2018-09-20 14:04:10,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b465cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:04:10, skipping insertion in model container [2018-09-20 14:04:10,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 02:04:09" (2/3) ... [2018-09-20 14:04:10,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b465cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 02:04:10, skipping insertion in model container [2018-09-20 14:04:10,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:04:10" (3/3) ... [2018-09-20 14:04:10,184 INFO L112 eAbstractionObserver]: Analyzing ICFG float_double_true-unreach-call_true-termination.c [2018-09-20 14:04:10,194 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 14:04:10,203 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 14:04:10,255 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 14:04:10,256 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 14:04:10,256 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 14:04:10,256 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 14:04:10,256 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 14:04:10,256 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 14:04:10,256 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 14:04:10,257 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 14:04:10,257 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 14:04:10,277 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-20 14:04:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-20 14:04:10,283 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 14:04:10,284 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 14:04:10,287 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 14:04:10,292 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-09-20 14:04:10,297 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 14:04:10,298 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 14:04:10,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 14:04:10,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 14:04:10,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 14:04:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 14:04:10,770 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 14:04:10,785 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 14:04:10,785 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-20 14:04:10,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-20 14:04:10,803 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-20 14:04:10,804 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-20 14:04:10,806 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-09-20 14:04:11,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 14:04:11,124 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-09-20 14:04:11,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 14:04:11,131 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-09-20 14:04:11,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 14:04:11,140 INFO L225 Difference]: With dead ends: 24 [2018-09-20 14:04:11,140 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 14:04:11,144 INFO L606 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 [2018-09-20 14:04:11,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 14:04:11,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 14:04:11,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 14:04:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 14:04:11,174 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-09-20 14:04:11,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 14:04:11,175 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 14:04:11,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-20 14:04:11,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 14:04:11,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 14:04:11,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 14:04:11,251 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-20 14:04:11,252 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:04:11,252 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 14:04:11,252 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 14:04:11,252 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 14:04:11,252 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 14:04:11,252 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 6 12) the Hoare annotation is: true [2018-09-20 14:04:11,253 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 6 12) no Hoare annotation was computed. [2018-09-20 14:04:11,253 INFO L422 ceAbstractionStarter]: At program point L10(line 10) the Hoare annotation is: (= (fp.add RNE ((_ to_fp 11 53) RNE 100000000000000000000.0) ((_ to_fp 11 53) RNE 1.0)) main_~x~0) [2018-09-20 14:04:11,253 INFO L426 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-09-20 14:04:11,253 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 6 12) no Hoare annotation was computed. [2018-09-20 14:04:11,254 INFO L426 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-09-20 14:04:11,254 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-09-20 14:04:11,254 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-09-20 14:04:11,255 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-09-20 14:04:11,255 INFO L426 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-09-20 14:04:11,255 INFO L426 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-09-20 14:04:11,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 02:04:11 BoogieIcfgContainer [2018-09-20 14:04:11,259 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 14:04:11,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 14:04:11,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 14:04:11,259 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 14:04:11,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 02:04:10" (3/4) ... [2018-09-20 14:04:11,264 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 14:04:11,273 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 14:04:11,273 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 14:04:11,273 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-09-20 14:04:11,278 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 14:04:11,278 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 14:04:11,278 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 14:04:11,325 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 14:04:11,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 14:04:11,326 INFO L168 Benchmark]: Toolchain (without parser) took 1761.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -144.6 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 14:04:11,328 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:04:11,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.18 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:04:11,329 INFO L168 Benchmark]: Boogie Preprocessor took 35.21 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 14:04:11,330 INFO L168 Benchmark]: RCFGBuilder took 298.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-09-20 14:04:11,331 INFO L168 Benchmark]: TraceAbstraction took 1083.87 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: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. [2018-09-20 14:04:11,332 INFO L168 Benchmark]: Witness Printer took 65.84 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. [2018-09-20 14:04:11,336 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.18 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.21 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 298.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1083.87 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: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. * Witness Printer took 65.84 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: - 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, 0.2s 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, 0.3s 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...