./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer --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=/tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer --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-a4ecdab [2020-11-28 02:56:20,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:20,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:21,016 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:21,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:21,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:21,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:21,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:21,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:21,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:21,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:21,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:21,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:21,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:21,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:21,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:21,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:21,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:21,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:21,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:21,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:21,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:21,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:21,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:21,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:21,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:21,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:21,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:21,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:21,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:21,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:21,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:21,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:21,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:21,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:21,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:21,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:21,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:21,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:21,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:21,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:21,116 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:21,146 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:21,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:21,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:21,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:21,149 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:21,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:21,149 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:21,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:21,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:21,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:21,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:21,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:21,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:21,151 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:21,151 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:21,151 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:21,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:21,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:21,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:21,152 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:21,152 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:21,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:21,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:21,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:21,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:21,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:21,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:21,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:21,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:21,154 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:/tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2020-11-28 02:56:21,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:21,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:21,481 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:21,482 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:21,483 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:21,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2020-11-28 02:56:21,582 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data/d3058f87e/375f4dae693a48a9bcb9212a77b2f38f/FLAGbfa052b91 [2020-11-28 02:56:22,084 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:22,085 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/sv-benchmarks/c/float-benchs/nan_double.c [2020-11-28 02:56:22,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data/d3058f87e/375f4dae693a48a9bcb9212a77b2f38f/FLAGbfa052b91 [2020-11-28 02:56:22,491 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data/d3058f87e/375f4dae693a48a9bcb9212a77b2f38f [2020-11-28 02:56:22,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:22,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:22,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:22,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:22,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4fcf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:22,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:22,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,712 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:22,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,742 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:22,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22 WrapperNode [2020-11-28 02:56:22,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:22,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:22,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,761 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:22,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:22,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:22,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:22,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:22,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/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 [2020-11-28 02:56:22,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:22,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:22,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:23,132 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:23,132 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 02:56:23,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:23 BoogieIcfgContainer [2020-11-28 02:56:23,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:23,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:23,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:23,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:23,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:22" (1/3) ... [2020-11-28 02:56:23,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b22d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:23, skipping insertion in model container [2020-11-28 02:56:23,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (2/3) ... [2020-11-28 02:56:23,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b22d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:23, skipping insertion in model container [2020-11-28 02:56:23,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:23" (3/3) ... [2020-11-28 02:56:23,161 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2020-11-28 02:56:23,173 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:23,198 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:56:23,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:56:23,235 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:23,235 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:23,235 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:23,236 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:23,236 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:23,236 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:23,236 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:23,236 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:23,250 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 02:56:23,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 02:56:23,255 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 02:56:23,256 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,262 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-28 02:56:23,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607316427] [2020-11-28 02:56:23,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:23,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:23,422 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:23,452 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:56:23,453 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:23,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:23,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:23 BoogieIcfgContainer [2020-11-28 02:56:23,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:23,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:23,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:23,487 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:23,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:23" (3/4) ... [2020-11-28 02:56:23,491 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:56:23,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:23,494 INFO L168 Benchmark]: Toolchain (without parser) took 995.34 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 49.4 MB in the beginning and 75.5 MB in the end (delta: -26.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:23,496 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 79.7 MB. Free memory was 50.8 MB in the beginning and 50.7 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:23,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.41 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 49.4 MB in the beginning and 74.0 MB in the end (delta: -24.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:23,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 72.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:23,500 INFO L168 Benchmark]: Boogie Preprocessor took 20.60 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:23,501 INFO L168 Benchmark]: RCFGBuilder took 334.61 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 61.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:23,503 INFO L168 Benchmark]: TraceAbstraction took 347.37 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 75.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:23,504 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 96.5 MB. Free memory is still 75.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:23,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 79.7 MB. Free memory was 50.8 MB in the beginning and 50.7 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.41 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 49.4 MB in the beginning and 74.0 MB in the end (delta: -24.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 72.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.60 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 334.61 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 61.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 347.37 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 75.5 MB in the end (delta: -14.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.73 ms. Allocated memory is still 96.5 MB. Free memory is still 75.5 MB. There was no memory consumed. 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 someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_double.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:56:26,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:26,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:26,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:26,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:26,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:26,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:26,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:26,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:26,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:26,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:26,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:26,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:26,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:26,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:26,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:26,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:26,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:26,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:26,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:26,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:26,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:26,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:26,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:26,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:26,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:26,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:26,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:26,438 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:26,439 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:26,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:26,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:26,441 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:26,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:26,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:26,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:26,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:26,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:26,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:26,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:26,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:26,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 02:56:26,497 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:26,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:26,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:26,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:26,501 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:26,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:26,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:26,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:26,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:26,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:26,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:26,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:26,504 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 02:56:26,504 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 02:56:26,504 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:26,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:26,504 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:26,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:26,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:26,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:26,505 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:26,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:26,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:26,506 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:26,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:26,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:26,506 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 02:56:26,506 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 02:56:26,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:26,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:26,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 02:56:26,507 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:/tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2020-11-28 02:56:26,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:26,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:26,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:26,966 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:26,967 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:26,968 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2020-11-28 02:56:27,046 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data/3de84d511/77d80669ff714db39d24738f1654bfe9/FLAGc2ec52b62 [2020-11-28 02:56:27,666 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:27,667 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/sv-benchmarks/c/float-benchs/nan_double.c [2020-11-28 02:56:27,674 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data/3de84d511/77d80669ff714db39d24738f1654bfe9/FLAGc2ec52b62 [2020-11-28 02:56:28,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/data/3de84d511/77d80669ff714db39d24738f1654bfe9 [2020-11-28 02:56:28,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:28,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:28,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:28,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:28,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:28,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52545b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28, skipping insertion in model container [2020-11-28 02:56:28,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:28,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:28,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:28,249 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:28,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:28,287 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:28,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28 WrapperNode [2020-11-28 02:56:28,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:28,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:28,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:28,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:28,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:28,345 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:28,345 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:28,345 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:28,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... [2020-11-28 02:56:28,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:28,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:28,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:28,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:28,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/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 [2020-11-28 02:56:28,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 02:56:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:28,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:28,908 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:28,909 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 02:56:28,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:28 BoogieIcfgContainer [2020-11-28 02:56:28,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:28,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:28,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:28,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:28,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:28" (1/3) ... [2020-11-28 02:56:28,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd7d9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:28, skipping insertion in model container [2020-11-28 02:56:28,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:28" (2/3) ... [2020-11-28 02:56:28,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd7d9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:28, skipping insertion in model container [2020-11-28 02:56:28,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:28" (3/3) ... [2020-11-28 02:56:28,925 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2020-11-28 02:56:28,938 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:28,942 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:56:28,956 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:56:28,999 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:28,999 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:29,000 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:29,000 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:29,000 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:29,000 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:29,000 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:29,001 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:29,015 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 02:56:29,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 02:56:29,021 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:29,021 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 02:56:29,022 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:29,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:29,037 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-28 02:56:29,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 02:56:29,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [196483545] [2020-11-28 02:56:29,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/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 [2020-11-28 02:56:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:29,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:56:29,218 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:56:29,248 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 02:56:29,249 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:56:29,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 02:56:29,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:29 BoogieIcfgContainer [2020-11-28 02:56:29,494 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:29,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:29,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:29,496 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:29,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:28" (3/4) ... [2020-11-28 02:56:29,498 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:56:29,556 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_12c8a843-54f7-4541-b80d-f7d813767671/bin/uautomizer/witness.graphml [2020-11-28 02:56:29,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:29,565 INFO L168 Benchmark]: Toolchain (without parser) took 1519.62 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.9 MB in the beginning and 43.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:29,567 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:29,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.88 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 26.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:29,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 56.6 MB. Free memory was 26.3 MB in the beginning and 24.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:29,578 INFO L168 Benchmark]: Boogie Preprocessor took 47.41 ms. Allocated memory is still 56.6 MB. Free memory was 24.8 MB in the beginning and 40.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:29,579 INFO L168 Benchmark]: RCFGBuilder took 520.90 ms. Allocated memory is still 56.6 MB. Free memory was 40.6 MB in the beginning and 30.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:29,580 INFO L168 Benchmark]: TraceAbstraction took 578.70 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 30.0 MB in the beginning and 44.9 MB in the end (delta: -14.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:29,581 INFO L168 Benchmark]: Witness Printer took 64.40 ms. Allocated memory is still 69.2 MB. Free memory was 44.9 MB in the beginning and 43.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:29,588 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.88 ms. Allocated memory is still 56.6 MB. Free memory was 35.8 MB in the beginning and 26.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 56.6 MB. Free memory was 26.3 MB in the beginning and 24.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.41 ms. Allocated memory is still 56.6 MB. Free memory was 24.8 MB in the beginning and 40.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 520.90 ms. Allocated memory is still 56.6 MB. Free memory was 40.6 MB in the beginning and 30.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 578.70 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 30.0 MB in the beginning and 44.9 MB in the end (delta: -14.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 64.40 ms. Allocated memory is still 69.2 MB. Free memory was 44.9 MB in the beginning and 43.2 MB in the end (delta: 1.7 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...