./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/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_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/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 0.1.25-f470102 [2019-12-07 10:07:28,795 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:28,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:28,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:28,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:28,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:28,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:28,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:28,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:28,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:28,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:28,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:28,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:28,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:28,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:28,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:28,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:28,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:28,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:28,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:28,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:28,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:28,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:28,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:28,820 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:28,821 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:28,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:28,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:28,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:28,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:28,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:28,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:28,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:28,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:28,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:28,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:28,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:28,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:28,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:28,825 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:28,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:28,826 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 10:07:28,835 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:28,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:28,836 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:28,836 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:28,837 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:28,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:28,837 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:07:28,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:07:28,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:07:28,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:28,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:07:28,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:07:28,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:07:28,838 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:07:28,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:07:28,838 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:28,838 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:07:28,838 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:28,838 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:28,839 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:07:28,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:07:28,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:28,839 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:28,839 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:07:28,839 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:07:28,839 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:07:28,839 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 10:07:28,840 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:07:28,840 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:28,840 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_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/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 [2019-12-07 10:07:28,939 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:28,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:28,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:28,951 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:28,952 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:28,952 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2019-12-07 10:07:28,991 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data/5ed807095/fa3e3537bcf04e268115dfd352b86a62/FLAGc77aa4d8d [2019-12-07 10:07:29,394 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:29,395 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/sv-benchmarks/c/float-benchs/nan_double.c [2019-12-07 10:07:29,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data/5ed807095/fa3e3537bcf04e268115dfd352b86a62/FLAGc77aa4d8d [2019-12-07 10:07:29,408 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data/5ed807095/fa3e3537bcf04e268115dfd352b86a62 [2019-12-07 10:07:29,410 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:29,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:07:29,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:29,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:29,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:29,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119a7e8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29, skipping insertion in model container [2019-12-07 10:07:29,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:29,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:29,534 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:29,537 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:29,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:29,594 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:29,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29 WrapperNode [2019-12-07 10:07:29,595 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:29,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:29,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:07:29,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:07:29,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:29,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:29,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:29,616 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:29,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... [2019-12-07 10:07:29,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:29,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:29,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:29,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:29,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/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 [2019-12-07 10:07:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:29,748 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:29,749 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:07:29,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:29 BoogieIcfgContainer [2019-12-07 10:07:29,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:29,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:07:29,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:07:29,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:07:29,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:29" (1/3) ... [2019-12-07 10:07:29,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f9acb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:29, skipping insertion in model container [2019-12-07 10:07:29,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:29" (2/3) ... [2019-12-07 10:07:29,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f9acb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:29, skipping insertion in model container [2019-12-07 10:07:29,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:29" (3/3) ... [2019-12-07 10:07:29,754 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-12-07 10:07:29,760 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:07:29,765 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:07:29,772 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:07:29,788 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:07:29,789 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:07:29,789 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:07:29,789 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:29,789 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:29,789 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:07:29,789 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:29,789 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:07:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 10:07:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-07 10:07:29,802 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:29,803 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-12-07 10:07:29,803 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:29,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:29,807 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-12-07 10:07:29,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:07:29,812 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718185822] [2019-12-07 10:07:29,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:07:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:29,884 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:07:29,885 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:07:29,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:29 BoogieIcfgContainer [2019-12-07 10:07:29,895 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:07:29,895 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:29,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:29,896 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:29,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:29" (3/4) ... [2019-12-07 10:07:29,898 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:07:29,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:29,900 INFO L168 Benchmark]: Toolchain (without parser) took 488.76 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -124.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:29,901 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:29,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:29,902 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:29,903 INFO L168 Benchmark]: Boogie Preprocessor took 10.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:29,903 INFO L168 Benchmark]: RCFGBuilder took 123.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:29,904 INFO L168 Benchmark]: TraceAbstraction took 144.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:29,904 INFO L168 Benchmark]: Witness Printer took 3.09 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:29,907 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -151.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.17 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 123.00 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 144.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.09 ms. Allocated memory is still 1.1 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: 0.0s, 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 0.1.25-f470102 [2019-12-07 10:07:31,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:07:31,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:07:31,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:07:31,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:07:31,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:07:31,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:07:31,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:07:31,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:07:31,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:07:31,273 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:07:31,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:07:31,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:07:31,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:07:31,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:07:31,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:07:31,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:07:31,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:07:31,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:07:31,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:07:31,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:07:31,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:07:31,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:07:31,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:07:31,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:07:31,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:07:31,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:07:31,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:07:31,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:07:31,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:07:31,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:07:31,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:07:31,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:07:31,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:07:31,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:07:31,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:07:31,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:07:31,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:07:31,291 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:07:31,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:07:31,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:07:31,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-12-07 10:07:31,302 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:07:31,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:07:31,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:07:31,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:07:31,304 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:07:31,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:07:31,304 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 10:07:31,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 10:07:31,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:07:31,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 10:07:31,304 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 10:07:31,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 10:07:31,305 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 10:07:31,305 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 10:07:31,305 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 10:07:31,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:07:31,305 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:07:31,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 10:07:31,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:07:31,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:07:31,306 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 10:07:31,306 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 10:07:31,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 10:07:31,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:07:31,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 10:07:31,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 10:07:31,307 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-12-07 10:07:31,307 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 10:07:31,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 10:07:31,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:07:31,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 10:07:31,307 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_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/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 [2019-12-07 10:07:31,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:07:31,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:07:31,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:07:31,483 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:07:31,484 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:07:31,484 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/../../sv-benchmarks/c/float-benchs/nan_double.c [2019-12-07 10:07:31,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data/8994ab859/daff739ee65a4d6fa68e834f9867cd18/FLAGe0be4b28d [2019-12-07 10:07:31,969 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:07:31,970 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/sv-benchmarks/c/float-benchs/nan_double.c [2019-12-07 10:07:31,974 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data/8994ab859/daff739ee65a4d6fa68e834f9867cd18/FLAGe0be4b28d [2019-12-07 10:07:31,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/data/8994ab859/daff739ee65a4d6fa68e834f9867cd18 [2019-12-07 10:07:31,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:07:31,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:07:31,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:31,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:07:31,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:07:31,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:31" (1/1) ... [2019-12-07 10:07:31,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f14eeb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:31, skipping insertion in model container [2019-12-07 10:07:31,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:07:31" (1/1) ... [2019-12-07 10:07:31,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:07:32,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:07:32,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:32,120 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:07:32,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:07:32,139 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:07:32,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32 WrapperNode [2019-12-07 10:07:32,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:07:32,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:32,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:07:32,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:07:32,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:07:32,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:07:32,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:07:32,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:07:32,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... [2019-12-07 10:07:32,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:07:32,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:07:32,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:07:32,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:07:32,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/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 [2019-12-07 10:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:07:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:07:32,337 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:07:32,337 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 10:07:32,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:32 BoogieIcfgContainer [2019-12-07 10:07:32,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:07:32,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 10:07:32,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 10:07:32,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 10:07:32,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 10:07:31" (1/3) ... [2019-12-07 10:07:32,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ab1f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:32, skipping insertion in model container [2019-12-07 10:07:32,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:07:32" (2/3) ... [2019-12-07 10:07:32,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ab1f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 10:07:32, skipping insertion in model container [2019-12-07 10:07:32,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:32" (3/3) ... [2019-12-07 10:07:32,342 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-12-07 10:07:32,348 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 10:07:32,352 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 10:07:32,362 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 10:07:32,377 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 10:07:32,378 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 10:07:32,378 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 10:07:32,378 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:07:32,378 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:07:32,378 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 10:07:32,378 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:07:32,378 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 10:07:32,387 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-12-07 10:07:32,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 10:07:32,390 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 10:07:32,391 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 10:07:32,391 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 10:07:32,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:07:32,395 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-12-07 10:07:32,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-12-07 10:07:32,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860065700] [2019-12-07 10:07:32,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/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 [2019-12-07 10:07:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:07:32,452 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-12-07 10:07:32,452 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 10:07:32,653 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 10:07:32,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 10:07:32 BoogieIcfgContainer [2019-12-07 10:07:32,677 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 10:07:32,677 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:07:32,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:07:32,678 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:07:32,678 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:07:32" (3/4) ... [2019-12-07 10:07:32,681 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 10:07:32,711 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a5bb8a9e-9bf9-4fd0-80d8-311091b65bd6/bin/uautomizer/witness.graphml [2019-12-07 10:07:32,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:07:32,713 INFO L168 Benchmark]: Toolchain (without parser) took 725.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -115.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:32,713 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-12-07 10:07:32,714 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:32,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:32,714 INFO L168 Benchmark]: Boogie Preprocessor took 13.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:07:32,715 INFO L168 Benchmark]: RCFGBuilder took 131.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:32,715 INFO L168 Benchmark]: TraceAbstraction took 338.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:32,716 INFO L168 Benchmark]: Witness Printer took 34.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 10:07:32,718 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 152.48 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 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 52.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 943.0 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 131.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 338.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * Witness Printer took 34.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, 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...