./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 ........................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 ............................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 23:56:43,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:56:43,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:56:43,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:56:43,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:56:43,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:56:43,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:56:43,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:56:43,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:56:43,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:56:43,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:56:43,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:56:43,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:56:43,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:56:43,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:56:43,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:56:43,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:56:43,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:56:43,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:56:43,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:56:43,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:56:43,049 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:56:43,050 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:56:43,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:56:43,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:56:43,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:56:43,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:56:43,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:56:43,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:56:43,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:56:43,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:56:43,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:56:43,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:56:43,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:56:43,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:56:43,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:56:43,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:56:43,068 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:56:43,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:56:43,069 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:56:43,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:56:43,071 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 23:56:43,084 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:56:43,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:56:43,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:56:43,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:56:43,086 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:56:43,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:56:43,087 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:56:43,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 23:56:43,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:56:43,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:56:43,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:56:43,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:56:43,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:56:43,088 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:56:43,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:56:43,089 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:56:43,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:56:43,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:56:43,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:56:43,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:56:43,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:56:43,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:56:43,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:56:43,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:56:43,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:56:43,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 23:56:43,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 23:56:43,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:56:43,092 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dc1721e577997f4966a61524053c01b76a6be07 [2019-11-15 23:56:43,117 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:56:43,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:56:43,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:56:43,131 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:56:43,131 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:56:43,132 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-15 23:56:43,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data/b234ac81c/892974ba9abd4d41bced3dcd021d6447/FLAGca757a002 [2019-11-15 23:56:43,545 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:56:43,547 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-15 23:56:43,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data/b234ac81c/892974ba9abd4d41bced3dcd021d6447/FLAGca757a002 [2019-11-15 23:56:43,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data/b234ac81c/892974ba9abd4d41bced3dcd021d6447 [2019-11-15 23:56:43,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:56:43,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:56:43,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:56:43,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:56:43,579 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:56:43,580 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c06bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43, skipping insertion in model container [2019-11-15 23:56:43,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,589 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:56:43,605 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:56:43,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:56:43,842 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:56:43,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:56:43,873 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:56:43,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43 WrapperNode [2019-11-15 23:56:43,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:56:43,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:56:43,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:56:43,875 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:56:43,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:56:43,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:56:43,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:56:43,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:56:43,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... [2019-11-15 23:56:43,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:56:43,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:56:43,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:56:43,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:56:43,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:56:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:56:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:56:44,122 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:56:44,123 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 23:56:44,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:56:44 BoogieIcfgContainer [2019-11-15 23:56:44,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:56:44,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:56:44,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:56:44,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:56:44,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:56:43" (1/3) ... [2019-11-15 23:56:44,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e65f408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:56:44, skipping insertion in model container [2019-11-15 23:56:44,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:43" (2/3) ... [2019-11-15 23:56:44,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e65f408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:56:44, skipping insertion in model container [2019-11-15 23:56:44,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:56:44" (3/3) ... [2019-11-15 23:56:44,133 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-15 23:56:44,143 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:56:44,149 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:56:44,159 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:56:44,184 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:56:44,184 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:56:44,185 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:56:44,185 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:56:44,185 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:56:44,186 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:56:44,186 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:56:44,187 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:56:44,200 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-15 23:56:44,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 23:56:44,205 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:56:44,206 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 23:56:44,207 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:56:44,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:56:44,212 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-15 23:56:44,219 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 23:56:44,219 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111006413] [2019-11-15 23:56:44,220 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:56:44,220 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 23:56:44,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 23:56:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:56:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:56:44,328 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 23:56:44,329 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:56:44,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:56:44 BoogieIcfgContainer [2019-11-15 23:56:44,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:56:44,344 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:56:44,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:56:44,345 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:56:44,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:56:44" (3/4) ... [2019-11-15 23:56:44,348 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 23:56:44,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:56:44,353 INFO L168 Benchmark]: Toolchain (without parser) took 778.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -165.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:56:44,353 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:56:44,355 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -194.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:44,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:56:44,356 INFO L168 Benchmark]: Boogie Preprocessor took 15.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:56:44,360 INFO L168 Benchmark]: RCFGBuilder took 205.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:44,361 INFO L168 Benchmark]: TraceAbstraction took 219.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:44,361 INFO L168 Benchmark]: Witness Printer took 3.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:56:44,371 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -194.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 205.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 219.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 3 NumberOfCodeBlocks, 3 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, 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 0.1.24-cad4683 [2019-11-15 23:56:46,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 23:56:46,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 23:56:46,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 23:56:46,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 23:56:46,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 23:56:46,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 23:56:46,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 23:56:46,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 23:56:46,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 23:56:46,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 23:56:46,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 23:56:46,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 23:56:46,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 23:56:46,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 23:56:46,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 23:56:46,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 23:56:46,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 23:56:46,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 23:56:46,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 23:56:46,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 23:56:46,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 23:56:46,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 23:56:46,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 23:56:46,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 23:56:46,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 23:56:46,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 23:56:46,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 23:56:46,350 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 23:56:46,351 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 23:56:46,351 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 23:56:46,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 23:56:46,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 23:56:46,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 23:56:46,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 23:56:46,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 23:56:46,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 23:56:46,355 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 23:56:46,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 23:56:46,356 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 23:56:46,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 23:56:46,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-15 23:56:46,370 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 23:56:46,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 23:56:46,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 23:56:46,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 23:56:46,376 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 23:56:46,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 23:56:46,376 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 23:56:46,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 23:56:46,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 23:56:46,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 23:56:46,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 23:56:46,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 23:56:46,377 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-15 23:56:46,377 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-15 23:56:46,378 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 23:56:46,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 23:56:46,378 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 23:56:46,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 23:56:46,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 23:56:46,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 23:56:46,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 23:56:46,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 23:56:46,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:56:46,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 23:56:46,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 23:56:46,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 23:56:46,380 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-15 23:56:46,380 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-15 23:56:46,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 23:56:46,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-15 23:56:46,381 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dc1721e577997f4966a61524053c01b76a6be07 [2019-11-15 23:56:46,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 23:56:46,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 23:56:46,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 23:56:46,421 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 23:56:46,422 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 23:56:46,422 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-15 23:56:46,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data/7021d9c9f/b7eb620f7cbc431d9fe1f0037831e424/FLAGe50c29c6f [2019-11-15 23:56:46,883 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 23:56:46,884 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-15 23:56:46,888 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data/7021d9c9f/b7eb620f7cbc431d9fe1f0037831e424/FLAGe50c29c6f [2019-11-15 23:56:46,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/data/7021d9c9f/b7eb620f7cbc431d9fe1f0037831e424 [2019-11-15 23:56:46,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 23:56:46,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 23:56:46,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 23:56:46,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 23:56:46,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 23:56:46,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:56:46" (1/1) ... [2019-11-15 23:56:46,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8b8747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:46, skipping insertion in model container [2019-11-15 23:56:46,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 11:56:46" (1/1) ... [2019-11-15 23:56:46,918 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 23:56:46,932 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 23:56:47,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:56:47,092 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 23:56:47,105 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 23:56:47,118 INFO L192 MainTranslator]: Completed translation [2019-11-15 23:56:47,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47 WrapperNode [2019-11-15 23:56:47,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 23:56:47,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 23:56:47,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 23:56:47,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 23:56:47,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 23:56:47,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 23:56:47,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 23:56:47,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 23:56:47,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... [2019-11-15 23:56:47,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 23:56:47,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 23:56:47,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 23:56:47,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 23:56:47,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 23:56:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 23:56:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 23:56:47,437 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 23:56:47,437 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-15 23:56:47,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:56:47 BoogieIcfgContainer [2019-11-15 23:56:47,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 23:56:47,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 23:56:47,439 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 23:56:47,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 23:56:47,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 11:56:46" (1/3) ... [2019-11-15 23:56:47,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd5d740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:56:47, skipping insertion in model container [2019-11-15 23:56:47,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 11:56:47" (2/3) ... [2019-11-15 23:56:47,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cd5d740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 11:56:47, skipping insertion in model container [2019-11-15 23:56:47,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:56:47" (3/3) ... [2019-11-15 23:56:47,445 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-15 23:56:47,453 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 23:56:47,463 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-15 23:56:47,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-15 23:56:47,488 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 23:56:47,488 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 23:56:47,488 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 23:56:47,488 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 23:56:47,488 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 23:56:47,489 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 23:56:47,489 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 23:56:47,489 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 23:56:47,501 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-15 23:56:47,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-15 23:56:47,505 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 23:56:47,505 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-15 23:56:47,507 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 23:56:47,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 23:56:47,511 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-15 23:56:47,517 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-11-15 23:56:47,518 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599983983] [2019-11-15 23:56:47,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-15 23:56:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:56:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 23:56:47,596 INFO L168 tionRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-15 23:56:47,597 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-11-15 23:56:47,809 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-15 23:56:47,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 11:56:47 BoogieIcfgContainer [2019-11-15 23:56:47,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 23:56:47,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 23:56:47,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 23:56:47,825 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 23:56:47,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 11:56:47" (3/4) ... [2019-11-15 23:56:47,830 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-15 23:56:47,859 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5634496d-21e4-45d5-a567-72b2b8f16559/bin/uautomizer/witness.graphml [2019-11-15 23:56:47,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 23:56:47,861 INFO L168 Benchmark]: Toolchain (without parser) took 957.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:56:47,862 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 23:56:47,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:47,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -225.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:47,863 INFO L168 Benchmark]: Boogie Preprocessor took 25.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:47,864 INFO L168 Benchmark]: RCFGBuilder took 181.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:47,865 INFO L168 Benchmark]: TraceAbstraction took 384.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:47,865 INFO L168 Benchmark]: Witness Printer took 35.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 23:56:47,869 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 214.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.9 MB). Free memory was 940.3 MB in the beginning and 1.2 GB in the end (delta: -225.1 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 181.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 384.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 3 NumberOfCodeBlocks, 3 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...