./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-floats-scientific-comp/loop1_false-unreach-call.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-floats-scientific-comp/loop1_false-unreach-call.c.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 34606649fc24a0c6046cbbdfba3b9ddb6bb91120 .................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-floats-scientific-comp/loop1_false-unreach-call.c.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 34606649fc24a0c6046cbbdfba3b9ddb6bb91120 ........................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 09:17:41,732 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 09:17:41,735 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 09:17:41,755 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 09:17:41,755 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 09:17:41,757 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 09:17:41,759 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 09:17:41,762 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 09:17:41,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 09:17:41,769 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 09:17:41,772 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 09:17:41,773 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 09:17:41,774 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 09:17:41,775 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 09:17:41,779 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 09:17:41,781 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 09:17:41,783 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 09:17:41,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 09:17:41,797 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 09:17:41,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 09:17:41,804 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 09:17:41,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 09:17:41,811 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 09:17:41,814 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 09:17:41,814 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 09:17:41,815 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 09:17:41,819 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 09:17:41,819 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 09:17:41,820 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 09:17:41,822 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 09:17:41,824 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 09:17:41,824 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 09:17:41,825 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 09:17:41,825 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 09:17:41,826 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 09:17:41,828 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 09:17:41,828 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 09:17:41,852 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 09:17:41,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 09:17:41,854 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 09:17:41,854 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 09:17:41,855 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 09:17:41,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 09:17:41,855 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 09:17:41,855 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 09:17:41,855 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 09:17:41,856 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 09:17:41,857 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 09:17:41,857 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 09:17:41,857 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 09:17:41,857 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 09:17:41,857 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 09:17:41,857 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 09:17:41,858 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 09:17:41,859 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 09:17:41,859 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 09:17:41,859 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 09:17:41,859 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 09:17:41,859 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 09:17:41,860 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 09:17:41,861 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 09:17:41,861 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 09:17:41,861 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 09:17:41,861 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 09:17:41,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 09:17:41,861 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 -> 34606649fc24a0c6046cbbdfba3b9ddb6bb91120 [2019-01-12 09:17:41,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 09:17:41,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 09:17:41,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 09:17:41,916 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 09:17:41,916 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 09:17:41,917 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-floats-scientific-comp/loop1_false-unreach-call.c.i [2019-01-12 09:17:41,975 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa2808df/864d2faf4cb244f3b67f890ef1087fc8/FLAG2327d1e12 [2019-01-12 09:17:42,359 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 09:17:42,360 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-floats-scientific-comp/loop1_false-unreach-call.c.i [2019-01-12 09:17:42,364 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa2808df/864d2faf4cb244f3b67f890ef1087fc8/FLAG2327d1e12 [2019-01-12 09:17:42,761 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eaa2808df/864d2faf4cb244f3b67f890ef1087fc8 [2019-01-12 09:17:42,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 09:17:42,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 09:17:42,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 09:17:42,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 09:17:42,773 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 09:17:42,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:17:42" (1/1) ... [2019-01-12 09:17:42,778 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5089c550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:42, skipping insertion in model container [2019-01-12 09:17:42,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:17:42" (1/1) ... [2019-01-12 09:17:42,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 09:17:42,808 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 09:17:43,042 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:17:43,050 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 09:17:43,073 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:17:43,093 INFO L195 MainTranslator]: Completed translation [2019-01-12 09:17:43,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43 WrapperNode [2019-01-12 09:17:43,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 09:17:43,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 09:17:43,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 09:17:43,097 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 09:17:43,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 09:17:43,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 09:17:43,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 09:17:43,136 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 09:17:43,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (1/1) ... [2019-01-12 09:17:43,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 09:17:43,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 09:17:43,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 09:17:43,164 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 09:17:43,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (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 [2019-01-12 09:17:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 09:17:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 09:17:43,489 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 09:17:43,490 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-12 09:17:43,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:17:43 BoogieIcfgContainer [2019-01-12 09:17:43,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 09:17:43,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 09:17:43,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 09:17:43,495 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 09:17:43,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 09:17:42" (1/3) ... [2019-01-12 09:17:43,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de0d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:17:43, skipping insertion in model container [2019-01-12 09:17:43,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:43" (2/3) ... [2019-01-12 09:17:43,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2de0d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:17:43, skipping insertion in model container [2019-01-12 09:17:43,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:17:43" (3/3) ... [2019-01-12 09:17:43,499 INFO L112 eAbstractionObserver]: Analyzing ICFG loop1_false-unreach-call.c.i [2019-01-12 09:17:43,509 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 09:17:43,516 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 09:17:43,534 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 09:17:43,565 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 09:17:43,566 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 09:17:43,566 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 09:17:43,566 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 09:17:43,566 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 09:17:43,566 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 09:17:43,567 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 09:17:43,567 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 09:17:43,567 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 09:17:43,581 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-12 09:17:43,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-12 09:17:43,587 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:17:43,588 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-12 09:17:43,590 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:17:43,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:17:43,596 INFO L82 PathProgramCache]: Analyzing trace with hash 30078084, now seen corresponding path program 1 times [2019-01-12 09:17:43,598 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:17:43,599 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:17:43,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:17:43,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:17:43,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:17:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:17:43,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:17:43,696 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:17:43,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 09:17:43,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 09:17:43,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 09:17:43,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 09:17:43,714 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-01-12 09:17:43,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:17:43,728 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2019-01-12 09:17:43,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 09:17:43,730 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-01-12 09:17:43,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:17:43,739 INFO L225 Difference]: With dead ends: 19 [2019-01-12 09:17:43,739 INFO L226 Difference]: Without dead ends: 7 [2019-01-12 09:17:43,742 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 09:17:43,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-12 09:17:43,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-12 09:17:43,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-12 09:17:43,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-01-12 09:17:43,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-01-12 09:17:43,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:17:43,777 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-01-12 09:17:43,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 09:17:43,778 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-12 09:17:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 09:17:43,778 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:17:43,778 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 09:17:43,779 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:17:43,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:17:43,779 INFO L82 PathProgramCache]: Analyzing trace with hash 925774290, now seen corresponding path program 1 times [2019-01-12 09:17:43,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:17:43,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:17:43,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:17:43,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:17:43,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:17:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 09:17:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 09:17:43,838 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 09:17:43,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 09:17:43 BoogieIcfgContainer [2019-01-12 09:17:43,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 09:17:43,856 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 09:17:43,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 09:17:43,856 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 09:17:43,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:17:43" (3/4) ... [2019-01-12 09:17:43,861 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 09:17:43,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 09:17:43,862 INFO L168 Benchmark]: Toolchain (without parser) took 1096.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:17:43,865 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:17:43,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.38 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 09:17:43,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.62 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:17:43,867 INFO L168 Benchmark]: Boogie Preprocessor took 26.64 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:17:43,868 INFO L168 Benchmark]: RCFGBuilder took 328.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-12 09:17:43,869 INFO L168 Benchmark]: TraceAbstraction took 362.86 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-01-12 09:17:43,870 INFO L168 Benchmark]: Witness Printer took 5.93 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. [2019-01-12 09:17:43,875 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.38 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.62 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.64 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 328.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 362.86 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.93 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: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 24. Possible FailurePath: [L15] float x = __VERIFIER_nondet_float() ; [L16] float exp = 1.0 ; [L17] float term = 1.0 ; [L18] unsigned int count = 1 ; [L19] float result = 2*(1/(1-x)) ; [L20] int temp ; [L22] COND TRUE 1 [L24] term = term * (x/count) [L25] exp = exp + term [L26] count++ [L28] temp = __VERIFIER_nondet_int() [L29] COND TRUE temp ==0 [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-0ed9222-m [2019-01-12 09:17:46,174 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 09:17:46,176 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 09:17:46,188 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 09:17:46,189 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 09:17:46,190 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 09:17:46,191 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 09:17:46,194 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 09:17:46,195 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 09:17:46,196 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 09:17:46,198 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 09:17:46,198 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 09:17:46,199 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 09:17:46,200 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 09:17:46,202 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 09:17:46,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 09:17:46,204 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 09:17:46,205 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 09:17:46,208 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 09:17:46,209 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 09:17:46,211 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 09:17:46,212 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 09:17:46,215 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 09:17:46,215 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 09:17:46,216 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 09:17:46,217 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 09:17:46,218 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 09:17:46,219 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 09:17:46,220 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 09:17:46,221 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 09:17:46,222 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 09:17:46,223 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 09:17:46,223 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 09:17:46,223 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 09:17:46,224 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 09:17:46,225 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 09:17:46,225 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 09:17:46,240 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 09:17:46,241 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 09:17:46,242 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 09:17:46,242 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 09:17:46,243 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 09:17:46,243 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 09:17:46,243 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 09:17:46,243 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 09:17:46,243 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 09:17:46,244 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 09:17:46,244 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 09:17:46,244 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 09:17:46,244 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 09:17:46,244 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 09:17:46,244 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 09:17:46,245 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 09:17:46,245 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 09:17:46,245 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 09:17:46,245 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 09:17:46,245 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 09:17:46,246 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 09:17:46,246 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 09:17:46,246 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 09:17:46,246 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 09:17:46,246 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 09:17:46,247 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 09:17:46,247 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 09:17:46,247 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 09:17:46,247 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 09:17:46,247 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 09:17:46,247 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 -> 34606649fc24a0c6046cbbdfba3b9ddb6bb91120 [2019-01-12 09:17:46,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 09:17:46,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 09:17:46,312 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 09:17:46,314 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 09:17:46,315 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 09:17:46,315 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-floats-scientific-comp/loop1_false-unreach-call.c.i [2019-01-12 09:17:46,383 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2414a7b8/1336a36e5afd4db792584a58390571cc/FLAGbb1b3a4ec [2019-01-12 09:17:46,803 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 09:17:46,803 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-floats-scientific-comp/loop1_false-unreach-call.c.i [2019-01-12 09:17:46,809 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2414a7b8/1336a36e5afd4db792584a58390571cc/FLAGbb1b3a4ec [2019-01-12 09:17:47,179 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2414a7b8/1336a36e5afd4db792584a58390571cc [2019-01-12 09:17:47,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 09:17:47,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 09:17:47,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 09:17:47,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 09:17:47,189 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 09:17:47,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14cbc4e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47, skipping insertion in model container [2019-01-12 09:17:47,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,201 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 09:17:47,224 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 09:17:47,463 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:17:47,475 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 09:17:47,501 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:17:47,526 INFO L195 MainTranslator]: Completed translation [2019-01-12 09:17:47,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47 WrapperNode [2019-01-12 09:17:47,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 09:17:47,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 09:17:47,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 09:17:47,528 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 09:17:47,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 09:17:47,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 09:17:47,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 09:17:47,573 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 09:17:47,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (1/1) ... [2019-01-12 09:17:47,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 09:17:47,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 09:17:47,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 09:17:47,600 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 09:17:47,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (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 [2019-01-12 09:17:47,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 09:17:47,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 09:17:50,562 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 09:17:50,562 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-12 09:17:50,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:17:50 BoogieIcfgContainer [2019-01-12 09:17:50,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 09:17:50,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 09:17:50,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 09:17:50,570 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 09:17:50,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 09:17:47" (1/3) ... [2019-01-12 09:17:50,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f833c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:17:50, skipping insertion in model container [2019-01-12 09:17:50,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:17:47" (2/3) ... [2019-01-12 09:17:50,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f833c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:17:50, skipping insertion in model container [2019-01-12 09:17:50,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:17:50" (3/3) ... [2019-01-12 09:17:50,573 INFO L112 eAbstractionObserver]: Analyzing ICFG loop1_false-unreach-call.c.i [2019-01-12 09:17:50,590 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 09:17:50,601 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 09:17:50,621 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 09:17:50,658 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 09:17:50,659 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 09:17:50,659 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 09:17:50,660 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 09:17:50,661 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 09:17:50,661 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 09:17:50,662 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 09:17:50,664 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 09:17:50,664 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 09:17:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-01-12 09:17:50,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-12 09:17:50,713 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:17:50,714 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-12 09:17:50,716 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:17:50,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:17:50,722 INFO L82 PathProgramCache]: Analyzing trace with hash 889906919, now seen corresponding path program 1 times [2019-01-12 09:17:50,726 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 09:17:50,726 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 [2019-01-12 09:17:50,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:17:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:17:51,027 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 09:17:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:17:51,039 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 09:17:51,054 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:17:51,054 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 09:17:51,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 09:17:51,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 09:17:51,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 09:17:51,071 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2019-01-12 09:17:51,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:17:51,085 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2019-01-12 09:17:51,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 09:17:51,087 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-01-12 09:17:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:17:51,098 INFO L225 Difference]: With dead ends: 20 [2019-01-12 09:17:51,098 INFO L226 Difference]: Without dead ends: 8 [2019-01-12 09:17:51,102 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 09:17:51,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-12 09:17:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-12 09:17:51,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-12 09:17:51,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-12 09:17:51,134 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-01-12 09:17:51,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:17:51,134 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-12 09:17:51,134 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 09:17:51,135 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-12 09:17:51,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-12 09:17:51,135 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:17:51,135 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:17:51,136 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:17:51,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:17:51,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1810664400, now seen corresponding path program 1 times [2019-01-12 09:17:51,137 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 09:17:51,137 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-01-12 09:17:51,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:17:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 09:17:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 09:17:52,403 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 09:17:52,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 09:17:52 BoogieIcfgContainer [2019-01-12 09:17:52,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 09:17:52,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 09:17:52,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 09:17:52,429 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 09:17:52,430 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:17:50" (3/4) ... [2019-01-12 09:17:52,432 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 09:17:52,481 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 09:17:52,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 09:17:52,482 INFO L168 Benchmark]: Toolchain (without parser) took 5298.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -122.9 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2019-01-12 09:17:52,484 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:17:52,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.54 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 09:17:52,486 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.40 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:17:52,486 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 09:17:52,487 INFO L168 Benchmark]: RCFGBuilder took 2964.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-01-12 09:17:52,488 INFO L168 Benchmark]: TraceAbstraction took 1862.34 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-01-12 09:17:52,489 INFO L168 Benchmark]: Witness Printer took 52.24 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. [2019-01-12 09:17:52,493 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 342.54 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.40 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.84 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2964.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1862.34 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Witness Printer took 52.24 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: - CounterExampleResult [Line: 8]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] float x = __VERIFIER_nondet_float() ; [L16] float exp = 1.0 ; [L17] float term = 1.0 ; [L18] unsigned int count = 1 ; [L19] float result = 2*(1/(1-x)) ; [L20] int temp ; [L22] COND TRUE 1 [L24] term = term * (x/count) [L25] exp = exp + term [L26] count++ [L28] temp = __VERIFIER_nondet_int() [L29] COND TRUE temp ==0 [L8] COND TRUE !(cond) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. UNSAFE Result, 1.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 13 ConjunctsInSsa, 1 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 incorrect! Received shutdown request...