./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 ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/nan_double.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/nan_double.c -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 0.2.0-ee8e70e [2020-10-24 14:39:08,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:39:08,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:39:08,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:39:08,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:39:08,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:39:08,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:39:08,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:39:08,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:39:08,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:39:08,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:39:08,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:39:08,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:39:08,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:39:08,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:39:08,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:39:08,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:39:08,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:39:08,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:39:08,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:39:08,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:39:08,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:39:08,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:39:08,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:39:08,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:39:08,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:39:08,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:39:08,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:39:08,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:39:08,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:39:08,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:39:08,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:39:08,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:39:08,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:39:08,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:39:08,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:39:08,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:39:08,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:39:08,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:39:08,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:39:08,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:39:08,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 14:39:08,981 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:39:08,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:39:08,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:39:08,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:39:08,988 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:39:08,989 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:39:08,989 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:39:08,990 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 14:39:08,990 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:39:08,990 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:39:08,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:39:08,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:39:08,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:39:08,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:39:08,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:39:08,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:39:08,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:39:08,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:39:08,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:39:08,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:39:08,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:39:08,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:39:08,994 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:39:08,994 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:39:08,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:39:08,995 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 14:39:08,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 14:39:08,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:39:08,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:39:08,996 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2020-10-24 14:39:09,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:39:09,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:39:09,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:39:09,511 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:39:09,513 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:39:09,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2020-10-24 14:39:09,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7b3e0643/9b50769f235946109621537c31b893b6/FLAG70be98526 [2020-10-24 14:39:10,354 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:39:10,355 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2020-10-24 14:39:10,364 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7b3e0643/9b50769f235946109621537c31b893b6/FLAG70be98526 [2020-10-24 14:39:10,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7b3e0643/9b50769f235946109621537c31b893b6 [2020-10-24 14:39:10,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:39:10,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:39:10,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:10,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:39:10,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:39:10,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:10" (1/1) ... [2020-10-24 14:39:10,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f88e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:10, skipping insertion in model container [2020-10-24 14:39:10,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:10" (1/1) ... [2020-10-24 14:39:10,735 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:39:10,751 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:39:10,981 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:10,993 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:39:11,009 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:11,027 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:39:11,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11 WrapperNode [2020-10-24 14:39:11,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:11,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:11,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:39:11,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:39:11,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:11,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:39:11,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:39:11,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:39:11,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,080 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... [2020-10-24 14:39:11,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:39:11,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:39:11,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:39:11,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:39:11,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:39:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:39:11,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:39:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 14:39:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:39:11,397 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:39:11,398 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:39:11,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:11 BoogieIcfgContainer [2020-10-24 14:39:11,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:39:11,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:39:11,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:39:11,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:39:11,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:39:10" (1/3) ... [2020-10-24 14:39:11,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8115ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:11, skipping insertion in model container [2020-10-24 14:39:11,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:11" (2/3) ... [2020-10-24 14:39:11,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8115ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:11, skipping insertion in model container [2020-10-24 14:39:11,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:11" (3/3) ... [2020-10-24 14:39:11,411 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2020-10-24 14:39:11,427 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:39:11,433 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:39:11,451 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:39:11,484 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:39:11,484 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:39:11,485 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:39:11,485 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:39:11,485 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:39:11,485 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:39:11,486 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:39:11,486 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:39:11,504 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 14:39:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:39:11,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:39:11,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:39:11,514 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:39:11,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:39:11,522 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-24 14:39:11,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 14:39:11,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907245079] [2020-10-24 14:39:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 14:39:11,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:39:11,681 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:39:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:39:11,708 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:39:11,737 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 14:39:11,738 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:39:11,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 14:39:11,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:39:11 BoogieIcfgContainer [2020-10-24 14:39:11,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:39:11,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:39:11,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:39:11,765 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:39:11,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:11" (3/4) ... [2020-10-24 14:39:11,770 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 14:39:11,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:39:11,773 INFO L168 Benchmark]: Toolchain (without parser) took 1063.92 ms. Allocated memory is still 50.3 MB. Free memory was 28.2 MB in the beginning and 27.9 MB in the end (delta: 286.9 kB). Peak memory consumption was 208.2 kB. Max. memory is 16.1 GB. [2020-10-24 14:39:11,775 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 39.8 MB. Free memory was 26.2 MB in the beginning and 26.2 MB in the end (delta: 22.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:11,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.41 ms. Allocated memory is still 50.3 MB. Free memory was 27.6 MB in the beginning and 28.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:11,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.41 ms. Allocated memory is still 50.3 MB. Free memory was 28.7 MB in the beginning and 27.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:11,778 INFO L168 Benchmark]: Boogie Preprocessor took 21.32 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 26.4 MB in the end (delta: 940.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:11,779 INFO L168 Benchmark]: RCFGBuilder took 310.09 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 28.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:11,780 INFO L168 Benchmark]: TraceAbstraction took 361.28 ms. Allocated memory is still 50.3 MB. Free memory was 27.8 MB in the beginning and 28.3 MB in the end (delta: -535.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:11,781 INFO L168 Benchmark]: Witness Printer took 5.75 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 27.9 MB in the end (delta: 393.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:11,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 39.8 MB. Free memory was 26.2 MB in the beginning and 26.2 MB in the end (delta: 22.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.41 ms. Allocated memory is still 50.3 MB. Free memory was 27.6 MB in the beginning and 28.7 MB in the end (delta: -1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.41 ms. Allocated memory is still 50.3 MB. Free memory was 28.7 MB in the beginning and 27.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.32 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 26.4 MB in the end (delta: 940.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 310.09 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 28.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 361.28 ms. Allocated memory is still 50.3 MB. Free memory was 27.8 MB in the beginning and 28.3 MB in the end (delta: -535.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.75 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 27.9 MB in the end (delta: 393.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 someBinaryDOUBLE_SMTComparisonOperation 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 0.2.0-ee8e70e [2020-10-24 14:39:14,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 14:39:14,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 14:39:14,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 14:39:14,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 14:39:14,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 14:39:14,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 14:39:14,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 14:39:14,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 14:39:14,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 14:39:14,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 14:39:14,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 14:39:14,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 14:39:14,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 14:39:14,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 14:39:14,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 14:39:14,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 14:39:14,603 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 14:39:14,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 14:39:14,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 14:39:14,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 14:39:14,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 14:39:14,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 14:39:14,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 14:39:14,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 14:39:14,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 14:39:14,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 14:39:14,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 14:39:14,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 14:39:14,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 14:39:14,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 14:39:14,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 14:39:14,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 14:39:14,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 14:39:14,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 14:39:14,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 14:39:14,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 14:39:14,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 14:39:14,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 14:39:14,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 14:39:14,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 14:39:14,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 14:39:14,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 14:39:14,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 14:39:14,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 14:39:14,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 14:39:14,709 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 14:39:14,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 14:39:14,710 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 14:39:14,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 14:39:14,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 14:39:14,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 14:39:14,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 14:39:14,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 14:39:14,711 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 14:39:14,711 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 14:39:14,712 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 14:39:14,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 14:39:14,712 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 14:39:14,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 14:39:14,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 14:39:14,713 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 14:39:14,713 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 14:39:14,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 14:39:14,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 14:39:14,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 14:39:14,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 14:39:14,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 14:39:14,715 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 14:39:14,715 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 14:39:14,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 14:39:14,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 14:39:14,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 14:39:14,716 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2020-10-24 14:39:15,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 14:39:15,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 14:39:15,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 14:39:15,204 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 14:39:15,211 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 14:39:15,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2020-10-24 14:39:15,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/141504a06/4d5f76f153f247378823e602073b0cf3/FLAG7e7779bfd [2020-10-24 14:39:16,011 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 14:39:16,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2020-10-24 14:39:16,019 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/141504a06/4d5f76f153f247378823e602073b0cf3/FLAG7e7779bfd [2020-10-24 14:39:16,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/141504a06/4d5f76f153f247378823e602073b0cf3 [2020-10-24 14:39:16,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 14:39:16,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 14:39:16,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:16,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 14:39:16,384 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 14:39:16,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b22958a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16, skipping insertion in model container [2020-10-24 14:39:16,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,398 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 14:39:16,413 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 14:39:16,599 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:16,633 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 14:39:16,655 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 14:39:16,687 INFO L217 MainTranslator]: Completed translation [2020-10-24 14:39:16,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16 WrapperNode [2020-10-24 14:39:16,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 14:39:16,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:16,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 14:39:16,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 14:39:16,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 14:39:16,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 14:39:16,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 14:39:16,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 14:39:16,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... [2020-10-24 14:39:16,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 14:39:16,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 14:39:16,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 14:39:16,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 14:39:16,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:39:16,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 14:39:16,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 14:39:16,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 14:39:16,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 14:39:17,369 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 14:39:17,369 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-24 14:39:17,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:17 BoogieIcfgContainer [2020-10-24 14:39:17,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 14:39:17,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 14:39:17,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 14:39:17,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 14:39:17,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:39:16" (1/3) ... [2020-10-24 14:39:17,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba7eb75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:17, skipping insertion in model container [2020-10-24 14:39:17,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:39:16" (2/3) ... [2020-10-24 14:39:17,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba7eb75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:39:17, skipping insertion in model container [2020-10-24 14:39:17,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:17" (3/3) ... [2020-10-24 14:39:17,388 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2020-10-24 14:39:17,399 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 14:39:17,404 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 14:39:17,417 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 14:39:17,446 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 14:39:17,447 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 14:39:17,447 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 14:39:17,447 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 14:39:17,447 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 14:39:17,448 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 14:39:17,448 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 14:39:17,448 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 14:39:17,463 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-24 14:39:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-24 14:39:17,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 14:39:17,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-24 14:39:17,471 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 14:39:17,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 14:39:17,478 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-24 14:39:17,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 14:39:17,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801999640] [2020-10-24 14:39:17,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-24 14:39:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:39:17,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:39:17,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 14:39:17,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 14:39:17,683 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-24 14:39:17,683 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 14:39:17,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 14:39:17,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:39:17 BoogieIcfgContainer [2020-10-24 14:39:17,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 14:39:17,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 14:39:17,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 14:39:17,929 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 14:39:17,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:39:17" (3/4) ... [2020-10-24 14:39:17,932 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-24 14:39:17,973 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 14:39:17,973 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 14:39:17,976 INFO L168 Benchmark]: Toolchain (without parser) took 1602.89 ms. Allocated memory is still 54.5 MB. Free memory was 31.8 MB in the beginning and 33.8 MB in the end (delta: -1.9 MB). Peak memory consumption was 1.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:17,977 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 37.7 MB. Free memory was 24.4 MB in the beginning and 24.4 MB in the end (delta: 17.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:17,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.19 ms. Allocated memory is still 54.5 MB. Free memory was 31.2 MB in the beginning and 34.7 MB in the end (delta: -3.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:17,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.00 ms. Allocated memory is still 54.5 MB. Free memory was 34.7 MB in the beginning and 33.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:17,980 INFO L168 Benchmark]: Boogie Preprocessor took 66.00 ms. Allocated memory is still 54.5 MB. Free memory was 33.4 MB in the beginning and 32.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 14:39:17,980 INFO L168 Benchmark]: RCFGBuilder took 557.82 ms. Allocated memory is still 54.5 MB. Free memory was 32.1 MB in the beginning and 35.2 MB in the end (delta: -3.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:17,981 INFO L168 Benchmark]: TraceAbstraction took 550.65 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 35.4 MB in the end (delta: -581.9 kB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:17,982 INFO L168 Benchmark]: Witness Printer took 44.88 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 33.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 14:39:17,989 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 37.7 MB. Free memory was 24.4 MB in the beginning and 24.4 MB in the end (delta: 17.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.19 ms. Allocated memory is still 54.5 MB. Free memory was 31.2 MB in the beginning and 34.7 MB in the end (delta: -3.5 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.00 ms. Allocated memory is still 54.5 MB. Free memory was 34.7 MB in the beginning and 33.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.00 ms. Allocated memory is still 54.5 MB. Free memory was 33.4 MB in the beginning and 32.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 557.82 ms. Allocated memory is still 54.5 MB. Free memory was 32.1 MB in the beginning and 35.2 MB in the end (delta: -3.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 550.65 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 35.4 MB in the end (delta: -581.9 kB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * Witness Printer took 44.88 ms. Allocated memory is still 54.5 MB. Free memory was 35.4 MB in the beginning and 33.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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...