./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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 ../sv-benchmarks/c/float-benchs/nan_double.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e70fb0031ee54295dcc583b462c02b21fc0481d0 ............................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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 ../sv-benchmarks/c/float-benchs/nan_double.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e70fb0031ee54295dcc583b462c02b21fc0481d0 .................................................................................................................................................................................................................................. 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 0.1.25-9a8b2e8 [2020-10-20 00:20:24,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:20:24,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:20:24,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:20:24,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:20:24,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:20:24,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:20:24,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:20:24,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:20:24,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:20:24,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:20:24,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:20:24,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:20:24,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:20:24,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:20:24,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:20:24,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:20:24,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:20:24,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:20:24,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:20:24,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:20:24,496 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:20:24,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:20:24,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:20:24,501 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:20:24,502 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:20:24,502 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:20:24,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:20:24,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:20:24,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:20:24,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:20:24,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:20:24,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:20:24,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:20:24,510 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:20:24,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:20:24,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:20:24,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:20:24,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:20:24,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:20:24,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:20:24,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:20:24,538 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:20:24,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:20:24,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:20:24,540 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:20:24,541 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:20:24,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:20:24,541 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:20:24,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:20:24,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:20:24,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:20:24,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:20:24,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:20:24,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:20:24,543 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:20:24,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:20:24,543 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:20:24,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:20:24,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:20:24,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:20:24,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:20:24,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:20:24,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:20:24,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:20:24,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:20:24,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:20:24,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:20:24,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:20:24,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:20:24,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:20:24,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(reach_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 -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2020-10-20 00:20:24,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:20:24,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:20:24,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:20:24,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:20:24,779 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:20:24,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2020-10-20 00:20:24,870 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ee6078e/abb3f2915d944d2ca8a487d47b283d9e/FLAG4fcad59e4 [2020-10-20 00:20:25,436 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:20:25,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2020-10-20 00:20:25,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ee6078e/abb3f2915d944d2ca8a487d47b283d9e/FLAG4fcad59e4 [2020-10-20 00:20:25,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ee6078e/abb3f2915d944d2ca8a487d47b283d9e [2020-10-20 00:20:25,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:20:25,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:20:25,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:20:25,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:20:25,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:20:25,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:20:25" (1/1) ... [2020-10-20 00:20:25,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a52ac18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:25, skipping insertion in model container [2020-10-20 00:20:25,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:20:25" (1/1) ... [2020-10-20 00:20:25,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:20:25,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:20:26,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:20:26,025 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:20:26,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:20:26,062 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:20:26,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26 WrapperNode [2020-10-20 00:20:26,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:20:26,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:20:26,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:20:26,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:20:26,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:20:26,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:20:26,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:20:26,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:20:26,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (1/1) ... [2020-10-20 00:20:26,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:20:26,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:20:26,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:20:26,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:20:26,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (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 [2020-10-20 00:20:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:20:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:20:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:20:26,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:20:26,384 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:20:26,385 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 00:20:26,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:20:26 BoogieIcfgContainer [2020-10-20 00:20:26,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:20:26,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:20:26,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:20:26,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:20:26,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:20:25" (1/3) ... [2020-10-20 00:20:26,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2f6ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:20:26, skipping insertion in model container [2020-10-20 00:20:26,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:26" (2/3) ... [2020-10-20 00:20:26,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2f6ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:20:26, skipping insertion in model container [2020-10-20 00:20:26,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:20:26" (3/3) ... [2020-10-20 00:20:26,397 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2020-10-20 00:20:26,409 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:20:26,417 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:20:26,429 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:20:26,448 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:20:26,448 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:20:26,448 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:20:26,449 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:20:26,449 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:20:26,449 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:20:26,449 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:20:26,450 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:20:26,463 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-20 00:20:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:20:26,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:20:26,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:20:26,470 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:20:26,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:20:26,476 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-20 00:20:26,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:20:26,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011313556] [2020-10-20 00:20:26,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:20:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:20:26,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:20:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:20:26,616 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:20:26,651 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:20:26,652 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:20:26,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:20:26,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:20:26 BoogieIcfgContainer [2020-10-20 00:20:26,680 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:20:26,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:20:26,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:20:26,681 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:20:26,682 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:20:26" (3/4) ... [2020-10-20 00:20:26,686 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:20:26,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:20:26,690 INFO L168 Benchmark]: Toolchain (without parser) took 931.89 ms. Allocated memory was 39.8 MB in the beginning and 43.0 MB in the end (delta: 3.1 MB). Free memory was 18.1 MB in the beginning and 22.3 MB in the end (delta: -4.2 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 00:20:26,691 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 30.9 MB. Free memory was 7.2 MB in the beginning and 7.1 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:20:26,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.67 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 17.3 MB in the beginning and 19.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:26,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.49 ms. Allocated memory is still 40.9 MB. Free memory was 19.0 MB in the beginning and 17.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:26,694 INFO L168 Benchmark]: Boogie Preprocessor took 22.94 ms. Allocated memory is still 40.9 MB. Free memory was 17.3 MB in the beginning and 16.3 MB in the end (delta: 982.9 kB). Peak memory consumption was 982.9 kB. Max. memory is 14.3 GB. [2020-10-20 00:20:26,696 INFO L168 Benchmark]: RCFGBuilder took 258.38 ms. Allocated memory was 40.9 MB in the beginning and 42.5 MB in the end (delta: 1.6 MB). Free memory was 16.2 MB in the beginning and 21.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:26,697 INFO L168 Benchmark]: TraceAbstraction took 291.64 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 20.6 MB in the beginning and 22.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:26,698 INFO L168 Benchmark]: Witness Printer took 6.41 ms. Allocated memory is still 43.0 MB. Free memory was 22.8 MB in the beginning and 22.3 MB in the end (delta: 530.7 kB). Peak memory consumption was 530.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:20:26,704 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 30.9 MB. Free memory was 7.2 MB in the beginning and 7.1 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 300.67 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 17.3 MB in the beginning and 19.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 40.49 ms. Allocated memory is still 40.9 MB. Free memory was 19.0 MB in the beginning and 17.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 22.94 ms. Allocated memory is still 40.9 MB. Free memory was 17.3 MB in the beginning and 16.3 MB in the end (delta: 982.9 kB). Peak memory consumption was 982.9 kB. Max. memory is 14.3 GB. * RCFGBuilder took 258.38 ms. Allocated memory was 40.9 MB in the beginning and 42.5 MB in the end (delta: 1.6 MB). Free memory was 16.2 MB in the beginning and 21.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 291.64 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 20.6 MB in the beginning and 22.8 MB in the end (delta: -2.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 14.3 GB. * Witness Printer took 6.41 ms. Allocated memory is still 43.0 MB. Free memory was 22.8 MB in the beginning and 22.3 MB in the end (delta: 530.7 kB). Peak memory consumption was 530.7 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_double.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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 0.1.25-9a8b2e8 [2020-10-20 00:20:28,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:20:28,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:20:28,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:20:28,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:20:28,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:20:28,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:20:28,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:20:28,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:20:28,748 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:20:28,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:20:28,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:20:28,751 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:20:28,752 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:20:28,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:20:28,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:20:28,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:20:28,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:20:28,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:20:28,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:20:28,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:20:28,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:20:28,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:20:28,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:20:28,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:20:28,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:20:28,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:20:28,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:20:28,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:20:28,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:20:28,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:20:28,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:20:28,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:20:28,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:20:28,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:20:28,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:20:28,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:20:28,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:20:28,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:20:28,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:20:28,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:20:28,787 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:20:28,808 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:20:28,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:20:28,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:20:28,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:20:28,811 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:20:28,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:20:28,811 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:20:28,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:20:28,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:20:28,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:20:28,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:20:28,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:20:28,813 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:20:28,813 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:20:28,813 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:20:28,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:20:28,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:20:28,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:20:28,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:20:28,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:20:28,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:20:28,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:20:28,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:20:28,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:20:28,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:20:28,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:20:28,817 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:20:28,817 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:20:28,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:20:28,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:20:28,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:20:28,818 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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(reach_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 -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2020-10-20 00:20:29,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:20:29,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:20:29,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:20:29,092 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:20:29,093 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:20:29,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2020-10-20 00:20:29,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3844902e0/b69680c9b9cd447f83dfead90f076f1e/FLAG193ea0b7d [2020-10-20 00:20:29,619 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:20:29,619 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2020-10-20 00:20:29,625 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3844902e0/b69680c9b9cd447f83dfead90f076f1e/FLAG193ea0b7d [2020-10-20 00:20:30,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3844902e0/b69680c9b9cd447f83dfead90f076f1e [2020-10-20 00:20:30,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:20:30,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:20:30,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:20:30,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:20:30,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:20:30,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50af2e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30, skipping insertion in model container [2020-10-20 00:20:30,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:20:30,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:20:30,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:20:30,311 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:20:30,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:20:30,346 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:20:30,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30 WrapperNode [2020-10-20 00:20:30,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:20:30,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:20:30,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:20:30,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:20:30,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,369 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:20:30,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:20:30,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:20:30,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:20:30,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (1/1) ... [2020-10-20 00:20:30,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:20:30,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:20:30,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:20:30,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:20:30,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (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 [2020-10-20 00:20:30,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:20:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:20:30,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:20:30,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:20:30,724 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:20:30,725 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 00:20:30,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:20:30 BoogieIcfgContainer [2020-10-20 00:20:30,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:20:30,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:20:30,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:20:30,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:20:30,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:20:30" (1/3) ... [2020-10-20 00:20:30,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffdf205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:20:30, skipping insertion in model container [2020-10-20 00:20:30,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:20:30" (2/3) ... [2020-10-20 00:20:30,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ffdf205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:20:30, skipping insertion in model container [2020-10-20 00:20:30,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:20:30" (3/3) ... [2020-10-20 00:20:30,736 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2020-10-20 00:20:30,749 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:20:30,756 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:20:30,771 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:20:30,797 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:20:30,798 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:20:30,798 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:20:30,798 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:20:30,798 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:20:30,799 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:20:30,799 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:20:30,799 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:20:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-20 00:20:30,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 00:20:30,820 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:20:30,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 00:20:30,821 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:20:30,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:20:30,828 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-20 00:20:30,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:20:30,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197916916] [2020-10-20 00:20:30,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2020-10-20 00:20:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:20:30,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:20:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:20:31,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:20:31,030 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 00:20:31,031 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:20:31,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:20:31,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:20:31 BoogieIcfgContainer [2020-10-20 00:20:31,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:20:31,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:20:31,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:20:31,263 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:20:31,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:20:30" (3/4) ... [2020-10-20 00:20:31,266 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 00:20:31,318 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:20:31,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:20:31,322 INFO L168 Benchmark]: Toolchain (without parser) took 1313.87 ms. Allocated memory was 40.9 MB in the beginning and 44.0 MB in the end (delta: 3.1 MB). Free memory was 18.6 MB in the beginning and 15.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 6.5 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:31,325 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 30.9 MB. Free memory was 17.1 MB in the beginning and 17.0 MB in the end (delta: 31.0 kB). Peak memory consumption was 31.0 kB. Max. memory is 14.3 GB. [2020-10-20 00:20:31,326 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.66 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.7 MB in the beginning and 17.1 MB in the end (delta: 601.8 kB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:31,328 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.93 ms. Allocated memory is still 41.9 MB. Free memory was 17.1 MB in the beginning and 15.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:31,331 INFO L168 Benchmark]: Boogie Preprocessor took 25.80 ms. Allocated memory is still 41.9 MB. Free memory was 15.3 MB in the beginning and 14.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:31,332 INFO L168 Benchmark]: RCFGBuilder took 315.03 ms. Allocated memory was 41.9 MB in the beginning and 44.0 MB in the end (delta: 2.1 MB). Free memory was 14.0 MB in the beginning and 18.7 MB in the end (delta: -4.6 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:31,333 INFO L168 Benchmark]: TraceAbstraction took 533.75 ms. Allocated memory is still 44.0 MB. Free memory was 18.2 MB in the beginning and 17.3 MB in the end (delta: 962.8 kB). Peak memory consumption was 962.8 kB. Max. memory is 14.3 GB. [2020-10-20 00:20:31,334 INFO L168 Benchmark]: Witness Printer took 56.45 ms. Allocated memory is still 44.0 MB. Free memory was 17.3 MB in the beginning and 15.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 00:20:31,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 30.9 MB. Free memory was 17.1 MB in the beginning and 17.0 MB in the end (delta: 31.0 kB). Peak memory consumption was 31.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 334.66 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 17.7 MB in the beginning and 17.1 MB in the end (delta: 601.8 kB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 36.93 ms. Allocated memory is still 41.9 MB. Free memory was 17.1 MB in the beginning and 15.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 25.80 ms. Allocated memory is still 41.9 MB. Free memory was 15.3 MB in the beginning and 14.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 315.03 ms. Allocated memory was 41.9 MB in the beginning and 44.0 MB in the end (delta: 2.1 MB). Free memory was 14.0 MB in the beginning and 18.7 MB in the end (delta: -4.6 MB). Peak memory consumption was 4.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 533.75 ms. Allocated memory is still 44.0 MB. Free memory was 18.2 MB in the beginning and 17.3 MB in the end (delta: 962.8 kB). Peak memory consumption was 962.8 kB. Max. memory is 14.3 GB. * Witness Printer took 56.45 ms. Allocated memory is still 44.0 MB. Free memory was 17.3 MB in the beginning and 15.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_double.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...