./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float.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_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/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 e3490f452c75bd943c0f7c3f7fb58032fe6d705c .................................................................................................................................................................................................................................. 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_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/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 e3490f452c75bd943c0f7c3f7fb58032fe6d705c ....................................................................................................................................................................................................................................... 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 03:07:55,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:07:55,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:07:55,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:07:55,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:07:55,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:07:55,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:07:55,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:07:55,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:07:55,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:07:55,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:07:55,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:07:55,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:07:55,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:07:55,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:07:55,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:07:55,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:07:55,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:07:55,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:07:55,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:07:55,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:07:55,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:07:55,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:07:55,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:07:55,153 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:07:55,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:07:55,154 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:07:55,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:07:55,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:07:55,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:07:55,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:07:55,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:07:55,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:07:55,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:07:55,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:07:55,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:07:55,166 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:07:55,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:07:55,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:07:55,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:07:55,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:07:55,172 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:07:55,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:07:55,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:07:55,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:07:55,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:07:55,217 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:07:55,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:07:55,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:07:55,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:07:55,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:07:55,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:07:55,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:07:55,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:07:55,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:07:55,220 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:07:55,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:07:55,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:07:55,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:07:55,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:07:55,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:07:55,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:07:55,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:07:55,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:07:55,222 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:07:55,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:07:55,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:07:55,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:07:55,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:07:55,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:07:55,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:07:55,224 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_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3490f452c75bd943c0f7c3f7fb58032fe6d705c [2020-11-28 03:07:55,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:07:55,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:07:55,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:07:55,608 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:07:55,609 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:07:55,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float.c [2020-11-28 03:07:55,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data/5781814dc/f18878e29681481b8fc97c05c155864b/FLAG75495cd79 [2020-11-28 03:07:56,289 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:07:56,290 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/sv-benchmarks/c/float-benchs/nan_float.c [2020-11-28 03:07:56,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data/5781814dc/f18878e29681481b8fc97c05c155864b/FLAG75495cd79 [2020-11-28 03:07:56,671 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data/5781814dc/f18878e29681481b8fc97c05c155864b [2020-11-28 03:07:56,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:07:56,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:07:56,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:56,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:07:56,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:07:56,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:56,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3ba73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56, skipping insertion in model container [2020-11-28 03:07:56,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:56,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:07:56,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:07:56,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:56,938 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:07:56,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:07:56,971 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:07:56,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56 WrapperNode [2020-11-28 03:07:56,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:07:56,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:07:56,975 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:07:56,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:07:56,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:56,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:57,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:07:57,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:07:57,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:07:57,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:07:57,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:57,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:57,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:57,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:57,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:57,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:57,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... [2020-11-28 03:07:57,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:07:57,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:07:57,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:07:57,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:07:57,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/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 03:07:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:07:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:07:57,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:07:57,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:07:57,453 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:07:57,453 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:07:57,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:57 BoogieIcfgContainer [2020-11-28 03:07:57,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:07:57,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:07:57,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:07:57,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:07:57,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:07:56" (1/3) ... [2020-11-28 03:07:57,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557cfddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:57, skipping insertion in model container [2020-11-28 03:07:57,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:07:56" (2/3) ... [2020-11-28 03:07:57,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557cfddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:07:57, skipping insertion in model container [2020-11-28 03:07:57,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:57" (3/3) ... [2020-11-28 03:07:57,466 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2020-11-28 03:07:57,477 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:07:57,496 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:07:57,525 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:07:57,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:07:57,565 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:07:57,565 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:07:57,565 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:07:57,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:07:57,566 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:07:57,566 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:07:57,566 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:07:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:07:57,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:07:57,592 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:07:57,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:07:57,593 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:07:57,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:07:57,602 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-28 03:07:57,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:07:57,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250021105] [2020-11-28 03:07:57,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:07:57,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:57,761 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:57,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:07:57,807 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:07:57,832 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:07:57,833 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:07:57,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:07:57,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:07:57 BoogieIcfgContainer [2020-11-28 03:07:57,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:07:57,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:07:57,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:07:57,863 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:07:57,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:07:57" (3/4) ... [2020-11-28 03:07:57,868 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:07:57,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:07:57,872 INFO L168 Benchmark]: Toolchain (without parser) took 1192.19 ms. Allocated memory is still 90.2 MB. Free memory was 61.2 MB in the beginning and 44.4 MB in the end (delta: 16.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,874 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 49.7 MB in the beginning and 49.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:07:57,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.64 ms. Allocated memory is still 90.2 MB. Free memory was 61.0 MB in the beginning and 69.2 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,877 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.64 ms. Allocated memory is still 90.2 MB. Free memory was 68.8 MB in the beginning and 67.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:07:57,879 INFO L168 Benchmark]: Boogie Preprocessor took 30.52 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 66.7 MB in the end (delta: 896.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,880 INFO L168 Benchmark]: RCFGBuilder took 407.00 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 57.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,881 INFO L168 Benchmark]: TraceAbstraction took 403.66 ms. Allocated memory is still 90.2 MB. Free memory was 56.2 MB in the beginning and 44.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:07:57,883 INFO L168 Benchmark]: Witness Printer took 5.97 ms. Allocated memory is still 90.2 MB. Free memory was 44.5 MB in the beginning and 44.4 MB in the end (delta: 108.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:07:57,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 49.7 MB in the beginning and 49.7 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.64 ms. Allocated memory is still 90.2 MB. Free memory was 61.0 MB in the beginning and 69.2 MB in the end (delta: -8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.64 ms. Allocated memory is still 90.2 MB. Free memory was 68.8 MB in the beginning and 67.6 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.52 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 66.7 MB in the end (delta: 896.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 407.00 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 57.0 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 403.66 ms. Allocated memory is still 90.2 MB. Free memory was 56.2 MB in the beginning and 44.5 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.97 ms. Allocated memory is still 90.2 MB. Free memory was 44.5 MB in the beginning and 44.4 MB in the end (delta: 108.7 kB). 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 someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_float.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 03:08:00,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:00,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:00,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:00,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:00,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:00,576 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:00,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:00,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:00,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:00,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:00,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:00,592 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:00,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:00,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:00,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:00,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:00,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:00,602 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:00,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:00,606 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:00,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:00,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:00,611 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:00,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:00,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:00,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:00,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:00,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:00,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:00,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:00,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:00,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:00,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:00,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:00,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:00,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:00,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:00,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:00,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:00,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:00,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:08:00,679 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:00,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:00,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:00,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:00,685 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:00,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:00,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:00,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:00,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:00,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:00,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:00,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:00,688 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:08:00,688 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:08:00,689 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:00,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:00,689 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:00,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:00,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:00,690 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:00,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:00,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:00,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:00,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:00,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:00,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:00,691 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:08:00,691 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:08:00,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:00,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:00,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:08:00,692 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_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3490f452c75bd943c0f7c3f7fb58032fe6d705c [2020-11-28 03:08:01,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:01,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:01,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:01,140 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:01,143 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:01,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_float.c [2020-11-28 03:08:01,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data/5621ae5d0/70998a5cf1f9468d8bc7dc0183a8d1c7/FLAGba28ffc75 [2020-11-28 03:08:01,800 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:01,801 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/sv-benchmarks/c/float-benchs/nan_float.c [2020-11-28 03:08:01,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data/5621ae5d0/70998a5cf1f9468d8bc7dc0183a8d1c7/FLAGba28ffc75 [2020-11-28 03:08:02,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/data/5621ae5d0/70998a5cf1f9468d8bc7dc0183a8d1c7 [2020-11-28 03:08:02,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:02,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:02,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:02,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:02,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:02,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@465a2e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02, skipping insertion in model container [2020-11-28 03:08:02,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:02,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:02,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:02,357 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:02,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:02,389 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:02,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02 WrapperNode [2020-11-28 03:08:02,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:02,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:02,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:02,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:02,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:02,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:02,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:02,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:02,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... [2020-11-28 03:08:02,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:02,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:02,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:02,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:02,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/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 03:08:02,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:08:02,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:02,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:02,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:02,930 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:02,930 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:08:02,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:02 BoogieIcfgContainer [2020-11-28 03:08:02,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:02,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:02,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:02,939 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:02,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:02" (1/3) ... [2020-11-28 03:08:02,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341c31fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:02, skipping insertion in model container [2020-11-28 03:08:02,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:02" (2/3) ... [2020-11-28 03:08:02,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341c31fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:02, skipping insertion in model container [2020-11-28 03:08:02,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:02" (3/3) ... [2020-11-28 03:08:02,943 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2020-11-28 03:08:02,959 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:02,963 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:08:02,975 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:08:03,013 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:03,014 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:03,014 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:03,014 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:03,014 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:03,014 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:03,015 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:03,015 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:03,028 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:08:03,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:08:03,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:03,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:08:03,034 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:03,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:03,042 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-28 03:08:03,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:03,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217244733] [2020-11-28 03:08:03,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/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 03:08:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:03,263 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:03,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:03,322 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-28 03:08:03,323 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:08:03,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:08:03,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:03 BoogieIcfgContainer [2020-11-28 03:08:03,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:03,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:03,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:03,563 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:03,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:02" (3/4) ... [2020-11-28 03:08:03,566 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:08:03,602 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_542752e8-2bd3-4e6c-990b-1cb4ab3b723f/bin/uautomizer/witness.graphml [2020-11-28 03:08:03,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:03,605 INFO L168 Benchmark]: Toolchain (without parser) took 1442.60 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.0 MB in the beginning and 40.9 MB in the end (delta: -7.9 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:03,606 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 31.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:03,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.68 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 23.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:03,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.31 ms. Allocated memory is still 54.5 MB. Free memory was 23.2 MB in the beginning and 21.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:03,609 INFO L168 Benchmark]: Boogie Preprocessor took 24.74 ms. Allocated memory is still 54.5 MB. Free memory was 21.9 MB in the beginning and 20.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:03,610 INFO L168 Benchmark]: RCFGBuilder took 468.92 ms. Allocated memory is still 54.5 MB. Free memory was 38.4 MB in the beginning and 28.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:03,612 INFO L168 Benchmark]: TraceAbstraction took 625.70 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.0 MB in the beginning and 42.6 MB in the end (delta: -14.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:03,613 INFO L168 Benchmark]: Witness Printer took 40.59 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 40.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:03,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.2 MB in the end (delta: 31.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.68 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 23.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.31 ms. Allocated memory is still 54.5 MB. Free memory was 23.2 MB in the beginning and 21.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.74 ms. Allocated memory is still 54.5 MB. Free memory was 21.9 MB in the beginning and 20.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 468.92 ms. Allocated memory is still 54.5 MB. Free memory was 38.4 MB in the beginning and 28.3 MB in the end (delta: 10.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 625.70 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.0 MB in the beginning and 42.6 MB in the end (delta: -14.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 40.59 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 40.9 MB in the end (delta: 1.4 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] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L3] __assert_fail("0", "nan_float.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: 0.5s, 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...