./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b1f703b8c1a340e028de77080ca419d81a34cd6 ............................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2b1f703b8c1a340e028de77080ca419d81a34cd6 ................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 17:40:21,556 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:21,558 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:21,571 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:21,572 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:21,573 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:21,574 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:21,577 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:21,579 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:21,580 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:21,581 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:21,581 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:21,583 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:21,584 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:21,585 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:21,586 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:21,588 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:21,590 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:21,594 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:21,596 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:21,597 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:21,603 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:21,609 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:21,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:21,609 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:21,613 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:21,614 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:21,615 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:21,616 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:21,617 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:21,617 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:21,618 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:21,618 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:21,619 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:21,620 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:21,621 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:21,621 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:40:21,646 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:21,647 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:21,648 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:21,649 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:21,650 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:21,651 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:21,651 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:21,651 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:21,652 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:21,652 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:40:21,652 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:21,652 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:21,652 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:21,652 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:21,653 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:21,654 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:21,655 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:21,655 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:21,655 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:21,655 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:21,655 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:21,658 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:21,658 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:21,658 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:21,658 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:21,659 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:21,659 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:21,660 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:40:21,660 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:21,660 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:40:21,660 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 -> 2b1f703b8c1a340e028de77080ca419d81a34cd6 [2018-11-28 17:40:21,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:21,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:21,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:21,758 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:21,758 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:21,759 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-11-28 17:40:21,829 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b1bc9dd/11ee2e3c68d84cdaa13ca174716b23e9/FLAG85b1a9820 [2018-11-28 17:40:22,338 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:22,339 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-11-28 17:40:22,346 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b1bc9dd/11ee2e3c68d84cdaa13ca174716b23e9/FLAG85b1a9820 [2018-11-28 17:40:22,694 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4b1bc9dd/11ee2e3c68d84cdaa13ca174716b23e9 [2018-11-28 17:40:22,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:22,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:22,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:22,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:22,704 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:22,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:22" (1/1) ... [2018-11-28 17:40:22,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be567c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:22, skipping insertion in model container [2018-11-28 17:40:22,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:22" (1/1) ... [2018-11-28 17:40:22,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:22,736 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:22,961 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:22,966 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:22,983 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:22,999 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:23,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23 WrapperNode [2018-11-28 17:40:23,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:23,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:23,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:23,002 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:23,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:23,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:23,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:23,029 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:23,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:23,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:23,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:23,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:23,058 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:23,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:23,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:23,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:23,202 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:23,202 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:23,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:40:23,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:40:23,376 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:23,376 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:23,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:23 BoogieIcfgContainer [2018-11-28 17:40:23,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:23,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:23,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:23,382 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:23,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:22" (1/3) ... [2018-11-28 17:40:23,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22dc5ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:23, skipping insertion in model container [2018-11-28 17:40:23,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (2/3) ... [2018-11-28 17:40:23,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22dc5ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:23, skipping insertion in model container [2018-11-28 17:40:23,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:23" (3/3) ... [2018-11-28 17:40:23,387 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_false-unreach-call_true-termination.c [2018-11-28 17:40:23,399 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:23,407 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:23,427 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:23,460 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:23,461 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:23,461 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:23,461 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:23,461 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:23,461 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:23,461 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:23,462 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:23,462 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 17:40:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:40:23,490 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:23,491 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:23,493 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:23,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:23,503 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 17:40:23,505 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:40:23,506 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:40:23,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:23,561 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:23,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:23,623 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:40:23,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:23 BoogieIcfgContainer [2018-11-28 17:40:23,652 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:23,652 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:23,652 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:23,653 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:23,654 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:23" (3/4) ... [2018-11-28 17:40:23,659 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:40:23,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:23,660 INFO L168 Benchmark]: Toolchain (without parser) took 962.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:23,663 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:23,664 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 936.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:23,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.39 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:23,666 INFO L168 Benchmark]: Boogie Preprocessor took 27.05 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:23,667 INFO L168 Benchmark]: RCFGBuilder took 321.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:23,669 INFO L168 Benchmark]: TraceAbstraction took 273.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:23,670 INFO L168 Benchmark]: Witness Printer took 6.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:23,676 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 300.54 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 936.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.39 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.05 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 321.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 273.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.76 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: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13. Possible FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:40:26,105 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:26,107 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:26,121 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:26,121 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:26,122 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:26,124 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:26,126 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:26,128 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:26,129 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:26,130 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:26,130 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:26,132 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:26,133 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:26,134 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:26,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:26,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:26,138 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:26,141 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:26,142 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:26,144 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:26,145 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:26,148 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:26,148 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:26,149 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:26,150 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:26,151 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:26,152 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:26,153 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:26,155 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:26,155 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:26,156 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:26,156 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:26,156 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:26,157 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:26,159 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:26,159 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:40:26,176 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:26,177 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:26,177 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:26,178 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:26,179 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:26,179 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:26,179 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:26,179 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:26,179 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:26,180 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:26,180 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:26,180 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:26,180 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:26,180 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:26,181 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:40:26,182 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:40:26,182 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:26,182 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:26,183 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:26,183 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:26,183 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:26,183 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:26,183 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:26,184 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:26,185 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:26,185 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:26,185 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:26,185 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:26,186 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:40:26,186 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:26,186 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:40:26,187 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:40:26,187 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 -> 2b1f703b8c1a340e028de77080ca419d81a34cd6 [2018-11-28 17:40:26,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:26,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:26,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:26,266 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:26,267 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:26,268 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-11-28 17:40:26,339 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65b18f6d6/6ec4545511654254a690534c879eb1af/FLAGe32f0d4d9 [2018-11-28 17:40:26,789 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:26,790 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/nan_float_false-unreach-call_true-termination.c [2018-11-28 17:40:26,798 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65b18f6d6/6ec4545511654254a690534c879eb1af/FLAGe32f0d4d9 [2018-11-28 17:40:27,154 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65b18f6d6/6ec4545511654254a690534c879eb1af [2018-11-28 17:40:27,158 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:27,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:27,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:27,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:27,167 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:27,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b73fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27, skipping insertion in model container [2018-11-28 17:40:27,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:27,198 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:27,393 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:27,400 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:27,413 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:27,431 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:27,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27 WrapperNode [2018-11-28 17:40:27,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:27,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:27,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:27,433 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:27,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:27,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:27,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:27,462 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:27,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... [2018-11-28 17:40:27,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:27,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:27,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:27,491 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:27,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:27,621 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:40:27,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:40:27,787 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:27,788 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:27,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:27 BoogieIcfgContainer [2018-11-28 17:40:27,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:27,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:27,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:27,793 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:27,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:27" (1/3) ... [2018-11-28 17:40:27,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c6157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:27, skipping insertion in model container [2018-11-28 17:40:27,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:27" (2/3) ... [2018-11-28 17:40:27,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c6157c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:27, skipping insertion in model container [2018-11-28 17:40:27,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:27" (3/3) ... [2018-11-28 17:40:27,796 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_false-unreach-call_true-termination.c [2018-11-28 17:40:27,807 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:27,816 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:27,835 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:27,868 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:27,868 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:27,869 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:27,869 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:27,869 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:27,869 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:27,869 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:27,869 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:27,870 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:27,890 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-28 17:40:27,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 17:40:27,899 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:27,900 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:27,904 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:27,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:27,910 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-11-28 17:40:27,914 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:27,915 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:27,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:27,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:27,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:27,998 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:40:28,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:28 BoogieIcfgContainer [2018-11-28 17:40:28,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:28,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:28,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:28,022 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:28,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:27" (3/4) ... [2018-11-28 17:40:28,025 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 17:40:28,067 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:40:28,067 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:28,068 INFO L168 Benchmark]: Toolchain (without parser) took 909.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -104.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:28,070 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:28,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.54 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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. [2018-11-28 17:40:28,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.84 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:28,072 INFO L168 Benchmark]: Boogie Preprocessor took 29.13 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:28,073 INFO L168 Benchmark]: RCFGBuilder took 297.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:28,074 INFO L168 Benchmark]: TraceAbstraction took 232.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:28,074 INFO L168 Benchmark]: Witness Printer took 45.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:28,079 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 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.54 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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 27.84 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 29.13 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 297.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -137.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 232.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Witness Printer took 45.54 ms. Allocated memory is still 1.1 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: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] float x; [L11] x = __VERIFIER_nondet_float() [L13] CALL __VERIFIER_assert(x==x) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...