./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 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 ...................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dc1721e577997f4966a61524053c01b76a6be07 ............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:34,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:34,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:34,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:34,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:34,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:34,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:34,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:34,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:34,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:34,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:34,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:34,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:34,172 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:34,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:34,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:34,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:34,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:34,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:34,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:34,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:34,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:34,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:34,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:34,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:34,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:34,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:34,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:34,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:34,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:34,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:34,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:34,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:34,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:34,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:34,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:34,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:34,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:34,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:34,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:34,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:34,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:54:34,227 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:34,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:34,238 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:34,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:34,238 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:34,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:34,238 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:34,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:34,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:34,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:34,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:34,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:34,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:34,240 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:34,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:34,240 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:34,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:34,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:34,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:34,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:34,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:34,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:34,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:34,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:34,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:34,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:54:34,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:54:34,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:34,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dc1721e577997f4966a61524053c01b76a6be07 [2019-11-25 08:54:34,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:34,417 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:34,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:34,422 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:34,422 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:34,423 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-25 08:54:34,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data/1a64b2790/b7b1553f5ddc4f40b5b991b97e952286/FLAG1753abcb1 [2019-11-25 08:54:34,821 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:34,821 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-25 08:54:34,828 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data/1a64b2790/b7b1553f5ddc4f40b5b991b97e952286/FLAG1753abcb1 [2019-11-25 08:54:35,200 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data/1a64b2790/b7b1553f5ddc4f40b5b991b97e952286 [2019-11-25 08:54:35,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:35,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:35,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:35,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:35,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:35,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eec3169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35, skipping insertion in model container [2019-11-25 08:54:35,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:35,237 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:35,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:35,424 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:35,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:35,540 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:35,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35 WrapperNode [2019-11-25 08:54:35,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:35,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:35,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:35,542 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:35,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:35,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:35,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:35,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:35,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... [2019-11-25 08:54:35,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:35,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:35,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:35,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:35,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:35,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:35,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:35,774 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:35,774 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:54:35,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:35 BoogieIcfgContainer [2019-11-25 08:54:35,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:35,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:35,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:35,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:35,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:35" (1/3) ... [2019-11-25 08:54:35,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1318e9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:35, skipping insertion in model container [2019-11-25 08:54:35,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:35" (2/3) ... [2019-11-25 08:54:35,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1318e9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:35, skipping insertion in model container [2019-11-25 08:54:35,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:35" (3/3) ... [2019-11-25 08:54:35,781 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-25 08:54:35,788 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:35,792 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:54:35,801 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:54:35,822 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:35,822 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:35,822 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:35,822 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:35,822 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:35,823 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:35,823 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:35,823 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-25 08:54:35,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-25 08:54:35,839 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:35,840 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-25 08:54:35,840 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:35,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:35,845 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-25 08:54:35,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:54:35,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028463324] [2019-11-25 08:54:35,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:54:35,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:35,933 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:54:35,934 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:54:35,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:35 BoogieIcfgContainer [2019-11-25 08:54:35,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:35,948 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:35,948 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:35,948 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:35,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:35" (3/4) ... [2019-11-25 08:54:35,951 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:54:35,951 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:35,954 INFO L168 Benchmark]: Toolchain (without parser) took 749.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -173.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:35,954 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:35,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:35,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:35,956 INFO L168 Benchmark]: Boogie Preprocessor took 23.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:35,957 INFO L168 Benchmark]: RCFGBuilder took 175.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:35,958 INFO L168 Benchmark]: TraceAbstraction took 171.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:35,958 INFO L168 Benchmark]: Witness Printer took 3.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:35,961 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 337.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -202.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 175.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 171.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:37,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:37,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:37,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:37,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:37,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:37,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:37,976 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:37,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:37,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:37,980 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:37,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:37,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:37,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:37,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:37,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:37,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:37,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:37,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:37,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:37,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:37,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:38,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:38,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:38,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:38,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:38,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:38,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:38,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:38,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:38,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:38,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:38,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:38,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:38,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:38,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:38,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:38,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:38,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:38,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:38,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:38,025 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-25 08:54:38,042 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:38,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:38,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:38,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:38,044 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:38,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:38,045 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:38,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:38,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:38,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:54:38,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:38,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:54:38,046 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:54:38,047 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:54:38,047 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:38,047 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:38,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:54:38,048 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:38,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:54:38,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:38,048 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:38,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:38,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:38,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:38,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:38,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:38,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:54:38,050 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:54:38,051 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:54:38,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:54:38,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:54:38,051 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7dc1721e577997f4966a61524053c01b76a6be07 [2019-11-25 08:54:38,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:38,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:38,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:38,331 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:38,331 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:38,332 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-25 08:54:38,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data/227834860/e68ceb98ff314cc8a99faf0cac5c80b7/FLAG095bea90c [2019-11-25 08:54:38,767 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:38,768 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-25 08:54:38,773 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data/227834860/e68ceb98ff314cc8a99faf0cac5c80b7/FLAG095bea90c [2019-11-25 08:54:39,212 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/data/227834860/e68ceb98ff314cc8a99faf0cac5c80b7 [2019-11-25 08:54:39,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:39,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:54:39,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:39,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:39,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:39,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efd6506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39, skipping insertion in model container [2019-11-25 08:54:39,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:39,245 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:39,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:39,381 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:39,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:39,409 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:39,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39 WrapperNode [2019-11-25 08:54:39,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:39,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:39,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:54:39,411 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:54:39,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:54:39,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:39,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:39,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:39,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... [2019-11-25 08:54:39,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:39,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:39,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:39,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:39,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:39,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:39,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:39,681 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:39,681 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:54:39,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:39 BoogieIcfgContainer [2019-11-25 08:54:39,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:39,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:39,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:39,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:39,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:39" (1/3) ... [2019-11-25 08:54:39,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721babbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:39, skipping insertion in model container [2019-11-25 08:54:39,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:39" (2/3) ... [2019-11-25 08:54:39,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721babbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:39, skipping insertion in model container [2019-11-25 08:54:39,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:39" (3/3) ... [2019-11-25 08:54:39,689 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-25 08:54:39,698 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:39,705 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:54:39,715 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:54:39,735 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:39,735 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:54:39,735 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:39,735 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:39,735 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:39,735 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:39,735 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:39,736 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:39,747 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-25 08:54:39,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-25 08:54:39,752 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:39,753 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-25 08:54:39,753 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:54:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:39,759 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-25 08:54:39,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:39,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1735956057] [2019-11-25 08:54:39,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-25 08:54:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:39,827 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-25 08:54:39,828 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:54:40,040 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-25 08:54:40,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:40 BoogieIcfgContainer [2019-11-25 08:54:40,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:40,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:40,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:40,054 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:40,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:39" (3/4) ... [2019-11-25 08:54:40,057 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:54:40,096 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1ce04643-b22a-43c2-8d4d-ecbb23f585b7/bin/uautomizer/witness.graphml [2019-11-25 08:54:40,096 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:40,099 INFO L168 Benchmark]: Toolchain (without parser) took 882.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 82.7 kB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,101 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:40,102 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.29 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -210.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,109 INFO L168 Benchmark]: Boogie Preprocessor took 17.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,110 INFO L168 Benchmark]: RCFGBuilder took 171.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,110 INFO L168 Benchmark]: TraceAbstraction took 369.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:40,110 INFO L168 Benchmark]: Witness Printer took 42.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:40,113 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 193.29 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 83.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -210.7 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 171.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 369.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * Witness Printer took 42.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...