/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i --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/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 .................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 13:45:14,583 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:45:14,586 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:45:14,599 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:45:14,599 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:45:14,600 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:45:14,602 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:45:14,611 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:45:14,613 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:45:14,614 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:45:14,615 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:45:14,615 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:45:14,616 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:45:14,617 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:45:14,619 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:45:14,620 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:45:14,621 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:45:14,623 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:45:14,625 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:45:14,627 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:45:14,628 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:45:14,630 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:45:14,633 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:45:14,633 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:45:14,633 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:45:14,635 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:45:14,636 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:45:14,637 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:45:14,638 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:45:14,639 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:45:14,639 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:45:14,640 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:45:14,641 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:45:14,641 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:45:14,642 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:45:14,643 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:45:14,644 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:45:14,660 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:45:14,661 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:45:14,662 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:45:14,662 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:45:14,663 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:45:14,663 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:45:14,663 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:45:14,663 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:45:14,664 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:45:14,664 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:45:14,665 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:45:14,665 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:45:14,665 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:45:14,665 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:45:14,665 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:45:14,665 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:45:14,666 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:45:14,666 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:45:14,666 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:45:14,666 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:45:14,668 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:45:14,668 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:45:14,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:45:14,669 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:45:14,669 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:45:14,669 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:45:14,669 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:45:14,669 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:45:14,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:45:14,671 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-09-20 13:45:14,723 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:45:14,736 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:45:14,741 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:45:14,743 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:45:14,744 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:45:14,744 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-09-20 13:45:15,112 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e09844c4/2eed9fcfb1564a9cb9adacce33759574/FLAG11cae384c [2018-09-20 13:45:15,303 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:45:15,304 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-09-20 13:45:15,321 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e09844c4/2eed9fcfb1564a9cb9adacce33759574/FLAG11cae384c [2018-09-20 13:45:15,354 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e09844c4/2eed9fcfb1564a9cb9adacce33759574 [2018-09-20 13:45:15,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:45:15,364 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:45:15,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:45:15,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:45:15,376 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:45:15,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a0289e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15, skipping insertion in model container [2018-09-20 13:45:15,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,397 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:45:15,606 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:45:15,626 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:45:15,629 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:45:15,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15 WrapperNode [2018-09-20 13:45:15,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:45:15,644 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:45:15,644 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:45:15,644 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:45:15,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (1/1) ... [2018-09-20 13:45:15,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:45:15,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:45:15,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:45:15,678 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:45:15,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (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 [2018-09-20 13:45:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:45:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:45:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:45:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:45:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:45:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:45:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:45:16,140 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:45:16,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:16 BoogieIcfgContainer [2018-09-20 13:45:16,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:45:16,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:45:16,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:45:16,149 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:45:16,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:45:15" (1/3) ... [2018-09-20 13:45:16,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10025a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:16, skipping insertion in model container [2018-09-20 13:45:16,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:15" (2/3) ... [2018-09-20 13:45:16,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10025a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:16, skipping insertion in model container [2018-09-20 13:45:16,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:16" (3/3) ... [2018-09-20 13:45:16,156 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-09-20 13:45:16,170 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:45:16,184 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:45:16,252 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:45:16,254 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:45:16,254 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:45:16,255 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:45:16,255 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:45:16,255 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:45:16,255 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:45:16,255 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:45:16,256 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:45:16,283 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-09-20 13:45:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-20 13:45:16,296 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:45:16,297 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:45:16,300 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:45:16,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-09-20 13:45:16,311 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:45:16,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:45:16,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:45:16,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:45:16,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:45:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:45:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:45:16,456 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:45:16,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:45:16 BoogieIcfgContainer [2018-09-20 13:45:16,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:45:16,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:45:16,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:45:16,490 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:45:16,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:16" (3/4) ... [2018-09-20 13:45:16,496 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:45:16,498 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:45:16,500 INFO L168 Benchmark]: Toolchain (without parser) took 1138.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -162.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:45:16,504 INFO L168 Benchmark]: CDTParser took 0.20 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 13:45:16,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.43 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 13:45:16,509 INFO L168 Benchmark]: Boogie Preprocessor took 33.13 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 13:45:16,510 INFO L168 Benchmark]: RCFGBuilder took 465.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:16,512 INFO L168 Benchmark]: TraceAbstraction took 344.38 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: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:16,514 INFO L168 Benchmark]: Witness Printer took 9.07 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 13:45:16,522 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 276.43 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 33.13 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 465.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -190.2 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 344.38 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: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Witness Printer took 9.07 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) VAL [j=0] [L10] __VERIFIER_error() VAL [j=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 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=12occurred 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, 7 NumberOfCodeBlocks, 7 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 13:45:19,001 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:45:19,004 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:45:19,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:45:19,018 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:45:19,019 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:45:19,020 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:45:19,023 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:45:19,024 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:45:19,025 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:45:19,026 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:45:19,027 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:45:19,027 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:45:19,028 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:45:19,029 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:45:19,030 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:45:19,031 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:45:19,033 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:45:19,035 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:45:19,039 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:45:19,040 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:45:19,045 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:45:19,050 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:45:19,051 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:45:19,051 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:45:19,052 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:45:19,053 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:45:19,054 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:45:19,055 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:45:19,056 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:45:19,056 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:45:19,057 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:45:19,057 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:45:19,057 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:45:19,058 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:45:19,059 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:45:19,059 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:45:19,075 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:45:19,075 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:45:19,076 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:45:19,076 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:45:19,076 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:45:19,077 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:45:19,077 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:45:19,077 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:45:19,077 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:45:19,077 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:45:19,078 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:45:19,078 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:45:19,078 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:45:19,078 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:45:19,078 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:45:19,079 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:45:19,079 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:45:19,079 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:45:19,079 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:45:19,079 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:45:19,079 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:45:19,080 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:45:19,080 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:45:19,080 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:45:19,080 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:45:19,080 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:45:19,081 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:45:19,081 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:45:19,081 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:45:19,081 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:45:19,081 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:45:19,081 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-09-20 13:45:19,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:45:19,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:45:19,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:45:19,154 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:45:19,155 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:45:19,155 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-09-20 13:45:19,576 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f196c9b3/6f38e35acad94cc6ba161acd5f2be5ce/FLAG654ef7ab5 [2018-09-20 13:45:19,727 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:45:19,727 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-09-20 13:45:19,734 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f196c9b3/6f38e35acad94cc6ba161acd5f2be5ce/FLAG654ef7ab5 [2018-09-20 13:45:19,752 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f196c9b3/6f38e35acad94cc6ba161acd5f2be5ce [2018-09-20 13:45:19,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:45:19,761 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:45:19,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:45:19,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:45:19,775 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:45:19,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:45:19" (1/1) ... [2018-09-20 13:45:19,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541b40e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:19, skipping insertion in model container [2018-09-20 13:45:19,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:45:19" (1/1) ... [2018-09-20 13:45:19,792 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:45:19,975 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:45:19,997 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:45:20,000 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:45:20,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20 WrapperNode [2018-09-20 13:45:20,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:45:20,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:45:20,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:45:20,019 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:45:20,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (1/1) ... [2018-09-20 13:45:20,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (1/1) ... [2018-09-20 13:45:20,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (1/1) ... [2018-09-20 13:45:20,045 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (1/1) ... [2018-09-20 13:45:20,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (1/1) ... [2018-09-20 13:45:20,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (1/1) ... [2018-09-20 13:45:20,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (1/1) ... [2018-09-20 13:45:20,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:45:20,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:45:20,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:45:20,055 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:45:20,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (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 13:45:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:45:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:45:20,134 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:45:20,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:45:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:45:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:45:20,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:45:20,533 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:45:20,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:20 BoogieIcfgContainer [2018-09-20 13:45:20,534 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:45:20,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:45:20,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:45:20,545 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:45:20,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:45:19" (1/3) ... [2018-09-20 13:45:20,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd10856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:20, skipping insertion in model container [2018-09-20 13:45:20,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:45:20" (2/3) ... [2018-09-20 13:45:20,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd10856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:45:20, skipping insertion in model container [2018-09-20 13:45:20,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:20" (3/3) ... [2018-09-20 13:45:20,554 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-09-20 13:45:20,568 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:45:20,581 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:45:20,645 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:45:20,646 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:45:20,646 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:45:20,646 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:45:20,646 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:45:20,646 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:45:20,647 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:45:20,647 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:45:20,648 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:45:20,670 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-09-20 13:45:20,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-20 13:45:20,677 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:45:20,684 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:45:20,687 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:45:20,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-09-20 13:45:20,700 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:45:20,701 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 [2018-09-20 13:45:20,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:45:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:45:20,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:45:20,874 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 13:45:20,875 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:45:20,887 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:45:20,887 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-20 13:45:20,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-20 13:45:20,904 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-20 13:45:20,905 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:45:20,908 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-09-20 13:45:20,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:45:20,941 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-09-20 13:45:20,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-20 13:45:20,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-09-20 13:45:20,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:45:20,951 INFO L225 Difference]: With dead ends: 16 [2018-09-20 13:45:20,952 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 13:45:20,956 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-20 13:45:20,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 13:45:20,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 13:45:20,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 13:45:20,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 13:45:20,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-09-20 13:45:20,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:45:20,982 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 13:45:20,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-20 13:45:20,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 13:45:20,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 13:45:20,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 13:45:21,076 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-20 13:45:21,076 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:45:21,077 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:45:21,077 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 13:45:21,077 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 13:45:21,077 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 13:45:21,077 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 2 11) the Hoare annotation is: true [2018-09-20 13:45:21,078 INFO L426 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-09-20 13:45:21,078 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-09-20 13:45:21,078 INFO L426 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-09-20 13:45:21,078 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 2 11) no Hoare annotation was computed. [2018-09-20 13:45:21,078 INFO L426 ceAbstractionStarter]: For program point L10-3(lines 2 11) no Hoare annotation was computed. [2018-09-20 13:45:21,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:45:21 BoogieIcfgContainer [2018-09-20 13:45:21,082 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:45:21,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:45:21,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:45:21,083 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:45:21,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:45:20" (3/4) ... [2018-09-20 13:45:21,088 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 13:45:21,096 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 13:45:21,097 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 13:45:21,106 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-09-20 13:45:21,106 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-20 13:45:21,107 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 13:45:21,160 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:45:21,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:45:21,161 INFO L168 Benchmark]: Toolchain (without parser) took 1404.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -158.4 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:21,165 INFO L168 Benchmark]: CDTParser took 0.18 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 13:45:21,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.49 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 13:45:21,167 INFO L168 Benchmark]: Boogie Preprocessor took 35.38 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 13:45:21,169 INFO L168 Benchmark]: RCFGBuilder took 479.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:21,172 INFO L168 Benchmark]: TraceAbstraction took 544.56 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-09-20 13:45:21,174 INFO L168 Benchmark]: Witness Printer took 77.85 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 13:45:21,180 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 255.49 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 35.38 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 479.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 544.56 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 77.85 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: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 3 NumberOfNonLiveVariables, 15 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...